28 © 2023 by the authors; licensee Asian Online Journal Publishing Group Asian Review of Environmental and Earth Sciences Vol. 10, No. 1, 28-39, 2023 ISSN(E) 2313-8173 / ISSN(P) 2518-0134 DOI: 10.20448/arees.v10i1.4440 © 2023 by the authors; licensee Asian Online Journal Publishing Group An assessment of water quality and the locals' perception of coastal lagoon pollution in ghana: A case study of chemu lagoon in tema Kofi Adu-Boahen1 Isaac Boateng2 Emmanuel Yeboah Okyere3 Sender Kyeremeh4 ( Corresponding Author) 1,3,4Department of Geography Education, University of Education, Winneba, Ghana. 1Email: kadu-boahen@uew.edu.gh 3Email: eyokyere@uew.edu.gh 4Email: k.sender.11@gmail.com 2Department Construction and Wood Technology, Akenten Appiah Menkah University of Skills Training and Entrepreneurial Development, Ghana. 2Email: isaac.boateng@uew.edu.gh Abstract The Chemu lagoon is not immune to pollution through chemical waste contamination, refuse disposals, and untreated household sewage, and hence has been chosen as a case study. This paper aims to assess the lagoon's level of pollution. Chemical analysis of water samples, field observations, and a structured survey questionnaire was used to assess the state of the lagoon. The study revealed that the Chemu lagoon has inferior water quality as most of the parameters evaluated were above the acceptable standards of the United States Environmental Protection Agency (USEPA). Significant differences in concentrations of water quality parameters were established between seasons. The study found that respondents were aware of the lagoon’s polluted state and attributed pollution to siltation and waste dumping. This leads to offensive odour, livelihood losses emphasising a reduction in fishing activities, and outbreaks of diseases in the area. Conclusively, stakeholders have not prioritised mitigating pollution of the lagoon. The study recommends that the Environmental Health and Waste Management Departments of the Tema Metropolitan Assembly intensify house-to-house hygiene education and sanitary inspection in the area. There should be education and sensitisation on proper waste management practices in the area. Keywords: Chemu lagoon, Citizen science, Lagoon, Pollution, Waste management, Water quality. Citation | Adu-Boahen, K., Boateng, I., Okyere, E. Y., & Kyeremeh, S. (2023). An assessment of water quality and the locals’ perception of coastal lagoon pollution in ghana: A case study of chemu lagoon in tema. Asian Review of Environmental and Earth Sciences, 10(1), 28–39. 10.20448/arees.v10i1.4440 History: Received: 15 November 2022 Revised: 23 December 2022 Accepted: 10 January 2023 Published: 30 January 2023 Licensed: This work is licensed under a Creative Commons Attribution 4.0 License Publisher: Asian Online Journal Publishing Group Funding: This study received no specific financial support. Authors’ Contributions: All authors contributed equally to the conception and design of the study. Competing Interests: The authors declare that they have no conflict of interest. Transparency: The authors confirm that the manuscript is an honest, accurate, and transparent account of the study; that no vital features of the study have been omitted; and that any discrepancies from the study as planned have been explained. Ethical: This study followed all ethical practices during writing. Contents 1. Introduction ...................................................................................................................................................................................... 29 2. Water Pollution in Ghana .............................................................................................................................................................. 30 3. Materials and Methods ................................................................................................................................................................... 30 4. Results ................................................................................................................................................................................................ 31 5. Discussions ........................................................................................................................................................................................ 37 6. Conclusions ....................................................................................................................................................................................... 38 References .............................................................................................................................................................................................. 38 mailto:kadu-boahen@uew.edu.gh mailto:eyokyere@uew.edu.gh mailto:k.sender.11@gmail.com mailto:isaac.boateng@uew.edu.gh https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ https://www.doi.org/10.20448/arees.v10i1.4440 Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 29 © 2023 by the authors; licensee Asian Online Journal Publishing Group Contribution of this paper to the literature Relevant studies on lagoons primarily focus on reporting the state of pollution and water quality and, in some instances, identifies impacts on lagoons’ biodiversity by collecting water samples and specimen to investigate in laboratories. This study focuses on lagoon pollution but diversifies to study the case from a citizen science perspective to understand the respondents' perception. 1. Introduction Lagoons are shallow coastal water bodies, entirely or partly separated from a larger body of water by a barrier, reef or other depositional features [1, 2]. Lagoons deliver services, including fisheries, flood control, fresh water, and preservation of an array of species. They also serve as critical roosting, breeding grounds, food sources, and habitats for several bird species, especially migratory ones [3, 4]. On the other hand, lagoons are extraordinarily fragile and vulnerable to natural and human-based factors [4, 5]. Natural processes and pollution from nearby urban and industrial development can easily disturb coastal lagoons [3]. The United Nations World Water Assessment Programme reiterates that river, pond, dam, ocean, and lagoon pollution is a primary global concern [6, 7]. Pollution of a water body is observed whenever a body of water is harmed as a consequence of man's addition of a substantial quantity of hazardous materials. These actions cause adverse effects such as harm to living resources and marine life, dangerous situations to public health, an impediment to coastal and maritime activities, and poor quality use of the water body (United Nations Convention of the Law of the Sea; UNCLOS). There are numerous sources of contamination, which can be classified into two categories: primary and secondary causation. Primary causes encompass effluent from homes, factories, refineries, and sewage treatment plants that discharge fluids of differing quality directly into the waterways. Contaminants that enter water bodies from soils and groundwater structures, as well as from the surrounding air of acid rain, are considered secondary sources [8]. Anthropogenic impacts contaminate a large portion of the world's water sources. Around 2 million tons of sewage, industrial, and agricultural waste are estimated to be released into the nation's bodies of water as of 2002 United Nations World Water Assessment Programme [UN WWAP] [6]; Kwadzo, et al. [9]. In Kwadzo, et al. [9], it is reported that plastic and domestic wastes are the major lagoon pollutants identified by the respondents in work conducted on the Fosu Lagoon in Ghana. These negatively influence the environment and the lifestyle of individuals who use polluted water bodies [8]. In Ghana and other less economically developed countries where population growth is mainly faster than economic development, waste treatment facilities are almost non-existent. Many people die yearly from water-borne diseases such as cholera and typhoid and from pollutants such as lead, cyanide and other metals that cause cancer and death [10]. According to United Nations Children's Fund [11] and the World Health Organization [12], one of the most effective forms of water pollution is poor sanitary conditions, which pollute water bodies globally. They believe that around 2.5 billion people worldwide cannot access enhanced hygiene. Over nine million hectares of mangroves are located around coastal lagoons, tidal estuaries and deltas along the coastal wetlands of West Africa [13]. Notwithstanding their international importance as conservation areas for global biodiversity and production efficiency, these lagoons and marshes are primarily unrestricted. Research has found over 40 coastal lagoons along Ghana's 540-kilometre shoreline, which is part of the Coast of West Africa [3]. These lagoons and their wetlands provide a unique environment and habitat for humans and numerous species of animals in Ghana [3]. Economic development and population growth have increased the pollution of these water bodies tremendously, and most often, the pollutants are chemical waste, refuse disposals, and untreated sewage from houses. The vulnerability of coastal lagoons to pollution is counter-productive to environmental development. It is graphically illustrated in the Niger Delta, where mangroves and associated wetlands have been subjected to progressive degradation from the plethora of oil and gas mining activities in the Niger Delta and the near-shore environment [14]. The collapse of the fishing industry of the Aby Lagoon in Cote d'Ivoire in 1981 due to chemical pollution is another example [10]. Chemu lagoon is one of Ghana's worst-polluted lagoons [15]. According to Anny [16], Chemu Lagoon, which once had the prospect of being a source of sustenance, is almost depleted and is on the brink of total 'death' as a consequence of indiscriminate disposal of solid, liquid, and hazardous wastes. Chemu Lagoon, which once had the potential to be a suitable habitat for fish and serve as a valuable ecosystem and destination for migratory birds, has nearly dried up and is on the verge of 'death' due to pollution and overcrowding in its watersheds. The lagoon is presumed to be Tema's most highly contaminated body of water. For years, city officials have been conscious of the lagoons' poor condition; however, no well-defined implementation plan has been executed to save the lagoons from extermination. The Chemu lagoon in Tema New town is exposed to vehicle smoke. It is also close to the Tema oil refinery, which continuously emits smoke into the environment. Corporate Social Responsibility Movement (CSRM), a local environmental NGO, filed a writ against Tema Oil Refinery (TOR) in the Tema High Court in 2007 for purportedly contaminating the lagoon with oil and industrial wastewater from their plant [17]. Previous studies of lagoon pollution in Ghana primarily focus on Polycyclic Aromatic hydrocarbon pollution [18] and urban waste pollution Owusu Boadi and Kuitunen [19]. Biney [15] conducted water quality studies of some rivers and lagoons in Ghana, including the Chemu lagoon. Though his investigations identified Chemu lagoon as polluted, they did not consider the relevance of citizen science, what the locals perceived of the pollution and its impacts on their life. Apart from this, it is worth conducting a water quality assessment of the lagoon in recent times to mark monitoring lenses on the trends in the lagoon's pollution levels. The research will assist in deciphering why the unregulated disposal and dumping of garbage into the lagoon is exacerbating a decline in the biodiversity population in the area being studied. The research will also function as a position paper for the authorities and other intergovernmental organisations on concerns about monitoring the lagoon. The study positions that if the management policies and recommendations are followed, they will aid in the restoration of the ecosystem to a better state. The locals' income will recover if livelihood is eventually recovered in the lagoon and its watershed. Ultimately, the research will add to the existing knowledge on biodiversity protection. This paper assesses the water quality concentration of the Chemu lagoon, investigates how the local people perceive the pollution of the lagoon, and analyses the effects of the pollution on the people. Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 30 © 2023 by the authors; licensee Asian Online Journal Publishing Group 2. Water Pollution in Ghana Water contamination challenges in Ghana are inextricably linked to the country's social, economic, and urban growth programs since independence in 1957. Following independence, most industry segments were founded throughout the country to promote the natural environment. While leveraging mineral deposits and agricultural operations in industrialisation programs, residents did not take adequate precautions to protect against the environmental cost of these programs and resource depletion [20]. Consequently, many ecological concerns are currently faced, including varying air, water, and soil pollution. The mining, mineral exploitation and processing, textile, food processing, and petroleum refining and processing factories substantially contributed to the nation's pollution. Most of Ghana's industrial establishments are concentrated in the Accra and Tema metropolitan areas, which account for less than 1% of the country's total land area. The accumulation of these industrial sectors has also resulted in increased sound, fumes, and carbon monoxide emissions, as well as urban and industrial effluents [21]. Most liquid waste from manufacturing sectors is expelled into bodies of water unmanaged. As a result, the surroundings have been devastated. The country's manufacturers also induce different types of municipal solid waste. Food processing industries, for example, produce organic solid waste; building and construction industries have metal scraps, dust particles, and asbestos tailings; textile and garment industries produce wax, cotton fluff, feints offcuts, and floor wastes. Paper cuttings, trimmings, and exposed photo and video films are produced by the paper and printing industries. Metal and metallurgical factories produce ferrous, non-ferrous metal, and other wastes [21]. The Ghanaian government, environmental regulatory bodies, and social organisations are all collaborating to address the country's ecological problem. Among the initiatives that are currently being implemented are: • The formation of the Ministry of Local Government, Rural Development, and environment to provide policy recommendations [21]. • In 1974, the Environmental Protection Council, known as the Environmental Protection Agency, was established as the primary body to guide and regulate environmental standards. • Development and implementation of the National Environmental Policy (NEP) and the National Environmental Action Plan (NEAP) [21]. All these measures, policies and strategies are perfect on paper, but they have failed to make significant progress in reducing the menace. Most of them are either poorly implemented or not enforced due to inadequate resources, corruption and lack of commitment to achieve a sustainable environment. 3. Materials and Methods 3.1. Study Area Chemu Lagoon is situated to the East of Tema Community 1, as depicted in Figure 1. The lagoon is geographically marked within latitudes 5°38'59.09"N and 5°38'38.26"N and longitudes 0°0'45.95"E and 0°1'19.09"E. Tema is a coastal city located 25 kilometres east of Ghana's capital, Accra and has an area of approximately 26 km2. It is differentiated by myriad small streams that connect a mainstream. Tema is not only Ghana's economic hub but also the location of the state's major main port and one of the most efficient shipping locations on Africa's west Coast. "Over 250 factories in the lagoon catchment, engaged in eight major areas: chemicals, textiles, food processing, engineering, paint, fish cold stores, printing and wood works" [22]. This notwithstanding, the livelihoods of many of the people in the area still revolve around agriculture. Like other coastal towns, fishing is the predominant agricultural activity around. However, few people are involved in crop farming activities, including exotic vegetables and fruits [22]. Figure 1. Map showing the study area in the regional context. Source: Fieldwork, (2021). 3.2. Sampling, Data Collection, and Analysis A two-pronged approach was applied in this study. Firstly, concentration analysis of sample water collected from five diverse lagoon points Figure 2 was used to assess the lagoon's composition and level of contamination. Secondly, the paper employed a descriptive survey design (comprising a structured questionnaire) to evaluate the opinion of the local people on the effects of pollution. Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 31 © 2023 by the authors; licensee Asian Online Journal Publishing Group Water samples were collected from the lagoon to assess the level of contamination of the Chemu Lagoon. Five sampling points were determined after [23]. The samples were collected and stored in a high-density polyethene bottle. All plastic bottles for sampling were immersed in a 10% HNO3 solution for 48 hours and were thoroughly rinsed with double-distilled water before use. The bottles were also washed with water to be sampled at each sampling point to limit contaminants. All water samples were taken at the subsurface to avoid the superficial colloidal layer, which might influence the concentration of specific parameters. Samples were put in ice chests with ice cubes to slow biological and chemical reactions and were transported to the Water Research Institute's (WRI) laboratory for analysis. Water samples from the Chemu lagoon were analysed using an Atomic Absorption Spectrophotometer. Figure 2. Water sample sites along the course of Chemu lagoon. Source: Fieldwork, (2021). Moreover, a descriptive survey design was used because the study sought to observe, describe, and record elements of events that take place inevitably or as a consequence of human intervention. According to Fraenkel and Wallen [24] descriptive research is gathering evidence to address research questions about the current state of a subject of investigation. Gay [25] further defined the phenomenological method as appropriate for environmental concerns exploration, appraisal or examination of behaviours, viewpoints, sociodemographic characteristics, constraints, and processes. In light of this, the descriptive survey was selected as the study's design. The estimated population of the age bracket 20 to 60 at Tema community one is 18,483, according to the Ghana Statistical Service [26] report, at a growth rate of 2.6% per annum. The sample size was determined following [27], who proposed that a sample size of 377 is ideal for a population of about 20000 persons. The study sampled 377 persons chosen purposively and was in the position to provide relevant information for the analysis. The study thus sampled adults between the ages of 20 years and 60 years old who had lived in the area for at least ten years. This sample was considered appropriate and representative of the current study. The study's instruments featured a structured questionnaire, an interview guide, and an observation schedule. The data were processed and analysed using Statistical Package for the Social Sciences (SPSS) version 23. Descriptive statistics and inferential statistics were employed to present the data. The authors used descriptive statistics employing means of concentrations to show the research results. Inferential statistics employed paired sample t-tests to establish seasonal differences. The chemical analysis outcomes contrasted the standards for water bodies outlined by the USEPA. Although it may appear arbitrary to compare facts and social rules independently of date and utilisation, this was done by using the concentrations for studied parameters as the basis for comparison to establish the extent of pollution that the Chemu Lagoon has been experiencing for many years. 4. Results 4.1. Respondent's Sociodemographic Characteristics The socio-economic characteristics of the surveyed residents are presented in Table 1. The distribution by gender was 64% males and 36% females. With marital status, 66% of the respondents were married, 28% were single, and 6% were divorced. Results on educational attainment found that respondents with no formal education constituted 90 (24%), and formal education in the form of Basic, Middle, Senior High School and Tertiary represented 287(76%). This shows that most of the respondents at least have tasted formal education and could have more profound knowledge and appreciation of water pollution issues in the area studied. It is believed that the level of education usually affects the littering behaviour of people. The reported age category of the respondents followed the dimension 21-30 age bracket representing 25%, 31-30 were 33%, 41-50 were 22%, with the least designated age category being those between over 60 years who made 5% of the total respondents. Regarding years of stay in the catchment area, the results indicated that 13% of respondents had stayed there for between 1-5 years. Another 6 -10 years recorded 18.5%, with 11-15 years recording 21% of the respondents, whilst those who had lived in the area for over twenty years constituted 26%. The data presented in Table 1 showed that most respondents have stayed for a long time and are privy to the environmental injustices that have been at play in and around the lagoon. The study found that 43% of the residents earn up to 500 Cedis per month. Earnings between 501 and 1000 Cedis are for about 98 (26%), with another 117 (31%) making over 1000 Cedis on average per month. To understand the incidence of waste generation from the household level, the researchers analysed data on the household size of the respondents. The data revealed that households with 2-5 persons comprised 55% of the Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 32 © 2023 by the authors; licensee Asian Online Journal Publishing Group respondents, and households with more than 10 constituted 11.5%—persons living alone in a family consisting of 23% of the resident respondents. Table 1. Socio-demographics characteristics of respondents. Variable Item Frequency Percentage Gender Male 241 64 Female 136 36 Marital status Single 106 28 Married 249 66 Divorced 23 6 Age 21 - 30 Years 94 25 31 - 40 Years 124 33 41 - 50 Years 83 22 51 - 60 Years 57 15 Above 60 years 19 5 Level of education No formal education 90 24 Formal education 287 76 Years of residence 1 - 5 Years 49 13 6 -10 Years 70 18.5 11 - 15 Years 79 21 16 - 20 Years 81 21.5 Over 20 Years 98 26 Mean monthly income Up to 500 cedis 162 43 501 – 1000 98 26 Over 1000 Cedis 117 31 Household size 1 Person 87 23 2 -5 Persons 207 55 6 - 10 Persons 40 10.5 More than 10 persons 43 11.5 Total 377 100 Note: Source: 1 Cedis is equivalent to the average of 5.74 dollars in 2021. Fieldwork, (2021). 4.2. Seasonal Concentrations of Parameters As shown in Table 2, the chemical analysis results express the status of Physico-chemical and heavy metals concentration of the increasingly degrading Chemu lagoon. The table shows the concentrations (mg/L) of the Physico-chemical and heavy metals parameters in water samples during the wet and dry seasons by their mean concentrations and standard deviations. The table also compares the averages for concentrations with the USEPA permissible limits for the water body. Table 2 shows the concentration of the parameters analysed during both the wet and dry seasons. As shown, the mean pH for the dry season exceeds the permissible limit according to the USEPA standards, while that for the wet season was found to be acceptable. The study also identifies that the mean concentrations or levels of turbidity, temperature, sulphate, phosphates, faecal coliforms, biological oxygen demand, zinc, manganese, lead, and cadmium exceed the USEPA limit for water bodies during either season. This expresses that the Chemu lagoon is polluted to the extent of the concentrations identified and presented in Table 2. The parameters that were below the acceptable level include ammonia and dissolved solids. In the case of ammonia, the acceptable level is 10 mg/L, but the values for the five sites were below the acceptable level; 1.82, 6.21, 2.11, 3.14 and 1.81 mg/L, respectively. According to De Lacerda [28], findings identify input pathways, including river-fed pollution, the atmosphere, and direct effluents, which are all at play in the Chemu lagoon's catchment. There is a significant distinction between what should be considered the optimal range and the precise thresholds based on the comparisons made between the samples collected and pre-established permissible limits for the quality of water bodies laid down by the Environmental Protection Agency of the United States. It is a clear indication that the lagoon is polluted. Activities of the local people and the activities of the industries surrounding the lagoon attribute the higher pollution levels of the lagoon. 4.3. Seasonal Differences in the Concentrations of Parameters Paired-sample t-test was conducted to explore the differences between the concentrations for parameters for the wet and dry seasons. The results of the paired-sample t-test have been presented in Table 3. As shown in the table, the study has established that no statistically significant differences exist between the wet and the dry seasons' concentrations or levels of salinity, conductivity, temperature, total dissolved solids (TDS), sulphates, phosphates, potassium, BOD, total cyanide, lead, total cadmium, and mercury. For the pH, the study found a significant increase (t (4) = -3.434; p = 0.026) in the level of the measure of acidity or alkalinity from the wet season (mean concentration [M] = 8.9; standard deviation [SD] = 0.48) to the dry season (M = 9.46; SD = 0.46). A significant effect size expressed by an eta-squared statistic of 0.75 is established for the seasonal differences in pH in the Chemu lagoon. The results for turbidity found that the passage of time underscores differences in seasons' turbidity observations between the wet and dry seasons. Where a significant seasonal variation (t (4) = -3.062; p = 0.038) marked with an eta squared statistic of 0.7, signifying a large effect size between the wet season (M = 47.4; SD = 18.32) and the dry season (M = 61.4, SD = 9.84). The paired-sample difference in the ammonia concentration found a t (4) = -3.048; p = 0.038 with an eta squared of 0.7, connoting a large effect size. For faecal coliforms, the study has found a statistically significant increase (t (4) = -2.834; p = 0.047) in concentrations with the change from wet (M = 1905.2; SD = 645.23) to the dry (M = 2545.6; SD = 779.4) seasons. Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 33 © 2023 by the authors; licensee Asian Online Journal Publishing Group Table 2. Means of seasonal concentrations of parameters. Parameter Wet season mean SD Dry season mean SD USEPA limit pH 8.9 0.48 9.46* 0.46 6.5 to 9 Salinity 1.7 1.29 0.95 1.27 Conductivity 5.28 3.87 7.52 12.7 Turbidity 47.4* 18.3 61.4* 9.84 < 0.2 Nephelometric turbidity unit (NTU) Temperature 32.7* 3.37 33.0* 1.24 < 25OC TDS 382 153 342 114 500mg/L (500ppm). Ammonia 3 1.87 4.74 2.32 50 mg/L Sulphates 897* 317 838* 355 250 mg/L Phosphates 2.22* 1.28 2.37* 1.40 0.05 mg/L Faecal coliforms 1905* 645 2545* 779 200 Colony forming unit (CFU) per 100 mL Potassium 7.30 2.29 7.76 2.45 - - Chromium 2.41 1.05 0.14 0.09 0.1 mg/L Bilogical oxygen demand (BOD) 576* 448 602* 457 50 – 200 mg/L Nickel 8.38 0.42 9.57 0.46 0.1 mg/L Zinc 17.4* 0.66 23.3* 1.66 5 mg/L Iron 22.9 0.95 26.6 1.75 0.3 mg/L Benzene 36.4 11.0 46.8 13.5 0.2 mg/L Manganese 0.72* 0.23 1.3* 0.1 0.5 mg/L Total cyanide 1.08 0.93 1.06 0.54 0.2 mg/L Total Arsenic 0.88 0.7 1.14 0.91 0.01 mg/L Lead 0.48* 0.34 0.65* 0.17 0.05 mg/L Total cadmium 0.05* 0.02 0.32* 0.23 0.003 mg/L Mercury 0.03 0.01 0.03 0.02 0.002 mg/L Note: *Exceed permissible limit. Source: Fieldwork, (2021). Table 3. Paired-sample differences in parameters' concentrations. Pair (Wet season – dry season) Mean difference T Sig. Eta squared pH -0.56 -3.43 0.03* 0.75 Salinity 0.75 1.29 0.26 0.29 Conductivity -2.24 -0.55 0.61 0.07 Turbidity -14.0 -3.06 0.03* 0.70 Temperature -0.32 -0.23 0.83 0.01 TDS 39.6 1.56 0.19 0.38 Ammonia -1.79 -3.05 0.03* 0.70 Sulphates 58.4 1.21 0.29 0.27 Phosphates -0.15 -0.74 0.50 0.12 Faecal coliforms -640.4 -2.83 0.04* 0.67 Potassium -0.46 -1.12 0.32 0.24 Chromium 2.27 4.78 0.00* 0.85 BOD -26.0 -0.59 0.58 0.08 Nickel -1.18 -4.34 0.01* 0.83 Zinc -5.92 -10.6 0.00* 0.97 Iron -3.69 -5.49 0.00* 0.88 Benzene -10.4 -2.97 0.04* 0.69 Manganese -0.58 -4.96 0.00* 0.86 Total cyanide 0.02 0.09 0.93 0.00 Total Arsenic -0.26 -2.15 0.09* 0.54 Lead -0.17 -1.94 0.12 0.48 Total cadmium -0.27 -2.54 0.06 0.62 Mercury -0.005 -0.58 0.59 0.08 Note: * Connotes a p-value is less than 0.05, which expresses a statistically significant difference in the respective parameter. Source: Fieldwork: (2021). An eta stared statistic of 0.67, expressing a large effect size, has been established for the seasonal differences in faecal coliforms. The only parameter to observe a decrease in concentrations as a response to seasonal change from the wet (M = 2.41; SD = 1.05) to the dry (M = 0.14; SD = 0.09) seasons. Chromium concentrations for either season are significantly varied (t (4) = 4.779; p = 0.009), with a large effect size (eta squared statistic = 0.85). For nickel, zinc, iron, benzene and manganese, the study established increases in their concentrations, which are also not confirmed by chance. Finding the most significant effect size (eta = 0.97) among all the differences shown, the case for zinc expresses a mean difference of -5.92 for a t (4) = -10.592; p = 0.000). The wet season concentration for nickel (M = 8.38; SD = 0.42) significantly increased following the passage of time, where a mean zinc concentration of 9.51 and a standard deviation of 0.46 was found for the dry season. The cases for iron, benzene, and manganese found t- values of t (4) = -5.49, p = 0.005; t (4) = -2.97, p = 0.041; and t (4) = -4.961, p = 0.008, with eta squared statistics of 0.88, 0.69, and 0.86, which all indicate large effect sizes respectively for the seasonal differences in iron, benzene, and manganese. Total Arsenic, the study also found a large effect size (eta square = 0.54) for the seasonal difference in the concentrations. This effect size is the least identified among the studied parameters. Despite this, a mean difference of -0.26 has been found for a t (4) = -2.152, p = 0.098 to express seasonal increase in total arsenic concentrations. 4.4. Residents' Perception of the Status of the Chemu Lagoon The results from the study indicate that the residents are much aware of the pollution of the water body. About Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 34 © 2023 by the authors; licensee Asian Online Journal Publishing Group 92% said the lagoon is polluted, while only 8% believed it is not contaminated Table 4. The level of perception of the residents may go a long way to finding a lasting solution to the problems confronting them since they are aware of the extent of the problem and may advocate for alleviating the pain. Table 4. Rating of perception by residents. Lagoon status indicator N Statistic Mean Statistic SD Statistic Skewness Kurtosis Statistic S. E Statistic S. E Low fish catch 200 4.76 0.43 -1.23 0.17 -0.50 0.34 Odour in the community 200 4.71 0.61 -1.95 0.17 2.49 0.34 Poor water quality 200 4.61 0.62 -1.34 0.17 0.70 0.34 Extinction of fish 200 4.76 0.43 -1.23 0.17 -0.50 0.34 Extinction of native vegetation 200 4.56 0.64 -1.16 0.17 0.22 0.34 Depth of lagoon 200 4.65 0.66 -1.65 0.17 1.33 0.34 Colour of lagoon water 200 4.65 0.50 -0.90 0.17 -0.60 0.34 Waste deposition by industries 200 4.86 0.35 -2.09 0.17 2.40 0.34 Note: 1 = Strongly disagree, 2 = Disagree, 3 = Don't know, 4 = Agree, 5 = Strongly disagree. Source: Fieldwork: (2021). To further interrogated the respondents on their perceptions of the Chemu lagoon. A Likert scale was developed to solicit their views on some variables. Table 4 presents the views expressed by the respondents. The first variable was waste deposition by nearby industries into the lagoon. Waste deposition by nearby enterprises was considered the most dominant variable affecting the lagoon, with mean = 4.86 (SD = 0.35), which attests to the respondents' strong agreement with the position that waste deposition by industries induces pollution of the lagoon. To establish that there has been a change in the quality of the Chemu lagoon, the study sought to evaluate the respondents' perception of the lagoon's odour. The study found a mean of 4.71, with a standard deviation of 0.61, indicating that respondents strongly agree that the lagoon brings forth offensive odour around the local communities. In analysing the ability of the lagoon to support aquatic life, the study found that some fish species in the lagoon have gone extinct. The study found a mean of 4.76 with a standard deviation of 0.43 to establish the case. To the same degree, this translates into an expression that there has been a decline in the fish catch and, consequently, lower economic returns. This backs up [29] claim that a wide range of substances such as oil, gasoline, plastics, pesticides, cleaning detergents, and solvents can endanger public health and fish and other aquatic organisms. The study also has established that the Chemu lagoon has assumed shallowness as the results express a mean of 4.65 and a standard deviation of 0.65, suggesting that the refuse deposition into the lagoon has resulted in sedimentation, leading to its shallow nature. Boateng, et al. [5], as an indication of high eutrophication, also reported the shallowness of lagoons in Ghana, predisposing the lagoons to other events such as flooding and an increase in temperature. Following the establishment of refuse deposition into the lagoon, the study investigated means of waste disposal in the study area. The survey showed that 62% of respondents either dispose of household waste into refuse containers or have agreed with a waste management entity to collect them whenever their bins are full. The remaining 38 per cent either cast their destruction at the shores of the lagoon or empty them into the drains, which as well have the potential to end up in the immediate lagoon environment. As shown in Figure 3, 45%, 34%, 4%, and 17% of residents explicitly expressed that they manage waste by disposing of it in refuse containers, on the lagoon's shores, into drains, and collecting by waste contractors, respectively. Restudy positions that it is not automatic that the case expressed here is the reflection of reality since the researchers acknowledge the room for false information shared by respondents concerning their means of waste disposal. Other things being equal, though the study's goal was presented to the respondents, some respondents would still share false information for fear of being arrested for disposing of waste in an environmentally unfriendly manner. Respondents, however, reported that many people defecate on the lagoon's shores; the faeces eventually end up in the lagoon, and consequently, the higher accumulation of faecal coliforms, especially the higher level in the wet season, and the higher concentration in the dry season. Figure 3. Disposal of solid waste in the area. Source: Fieldwork, (2021). Again, to further explore the level of awareness, the residents were asked why some of them fly-tip the domestic waste. Eighty-six per cent (86%) of the respondents believed that there were inadequate refuse collection points in Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 35 © 2023 by the authors; licensee Asian Online Journal Publishing Group the area, with 14.0% saying that refuse collection points in their place were adequate Table 5. These results further explain why some residents chose to dispose-off refuse indiscriminately in the study area. Figure 4 shows the unsanitary conditions at Abonkor, one of the four communities selected for the study. Refuse was found at the doorsteps of residents. Figure 4. Insanitary conditions in a squatter settlement at Abonkor. Source: Ghana Business News [30]. 4.5. Contribution of Socio-Economic Activities to Pollution of the Chemu Lagoon Human activities around the lagoon impinged the environment, affecting flora and fauna. The Chemu lagoon, which was once a nesting place for birds and provided boating facilities for tourists, is now polluted and almost empty. According to the study results shown in Table 5, 82% of the respondents believed that tourist operations had a detrimental effect on the lagoon. Around 18% of those polled were of the opposing opinion. The respondents espoused that the activities of the visitors contribute to waste generation. Most visitors deposed items, including polythene bags, empty cans, food items and other waste products along the lagoon, which in the long run, ended up in the lagoon—the result above shows that waste disposal facilities were not adequate. The results attest to the observation by Molina and Molina [31] that dense concentrations of the population, such as those found in large cities, or are brought together by warfare and trade, tourism, etc., are usually necessary for water-borne diseases to attain epidemic proportions through the accumulation of waste. It is also consistent with the findings of the Environmental Protection Agency [EPA] [32], which observed poor domestic sanitary conditions and illegal dumping of metropolitan solid and liquid materials as the primary prevalent challenges facing coastal regions. Figure 5. Fishing activities in the polluted Chemu Lagoon. Source: Fieldwork, (2021). Results from the study, Table 5, indicate that the respondents were very much aware of the pollution of the lagoon. Ninety-two per cent (92%) of the inhabitants were aware of the lagoon being polluted, while only eight per cent (8%) were not of pollution in the lagoon's environment. The results imply that the inhabitants know about the various environmental problems in the area. This supports the view expressed by Thorne-Miller [33], who posits that people are most of the time aware that, accidentally or deliberately, the substances and materials they release into water bodies act in and on the environment. Figure 5 illustrates fishing activities ongoing in the polluted lagoon, though respondents are aware of the lagoon's status as polluted. Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 36 © 2023 by the authors; licensee Asian Online Journal Publishing Group Figure 6. Satellite image of urban growth towards the floodplains of the Chemu Lagoon. Source: Google Earth (2022). Table 5 shows that (96 per cent) of participants believe that the development of squatter settlements has contributed significantly to the contamination of the lagoon. The other 4% disagreed. Personal observations by the researchers indicated that in some areas, the growth of slums had led to the discharge of untreated wastes and, consequently, led to the gradual pollution of the wetlands surrounding the lagoon where aquatic life would thrive. An observation of the lagoon shown in the satellite image in Figure 6 shows urban growth enclosing the Chemu lagoon. Surface run-off from point source pollution, such as residential and commercial sewers, can carry harmful emissions like soil particles, pesticides, and fertilisers into coastal wetlands. According to the Environmental Protection Agency [EPA] [32], the Korle, Osu Klottey, and Kpeshie Lagoons in Accra and the Fosu Lagoon in Cape Coast are all in multiple states of degeneration and environmental damage as a result of the effects of poor residential sanitation. 4.6. Health and Socio-Economic Effects of the Lagoon Pollution Results from Table 5 indicate that 84% of the respondents believe that people fall sick frequently due to the polluted environment, while 16% shared the opposite view. Poor domestic sanitation was the most pervasive of all of the problems found around the lagoon. This environmental problem facilitates the locals' poor health, the lagoon's polluted ecological status, and the unappealing situations that impede economic and social development, such as tourism. Mulamoottil [34] stated that unsanitary environments directly or indirectly cause up to 40% of diseases reported at hospitals nearby. Table 5. Residents' perception of the status of the Chemu lagoon. Item Response Frequency Percentage Awareness of the Chemu Lagoon pollution Yes 347 92 No 30 8 Adequacy of refuse collection points in the area Yes 53 14 No 324 86 Pollution of Chemu Lagoon by visitors Yes 309 82 No 68 18 Waste disposal facilities near the lagoon Yes 53 14 No 324 86 Slums created around the lagoon Yes 362 96 No 15 4 Effects of pollution on human health Yes 317 84 No 60 16 Authorities organising meeting on Chemu Lagoon Yes 79 21 No 298 79 Figure 7 shows the respondents who attributed the various diseases reported in the study area to pollution. Most (64%) respondents attributed the malaria outbreak to pollution. Again 25% of them viewed that pollution caused typhoid fever in the area. Six and five per cent (6%, & 5%) said pollution caused cholera and abdominal pains in the studied communities. The diseases mentioned above are primarily endemic in polluted and dirty environments where people defecate and dispose of waste indiscriminately. The study confirms the findings of Owusu Boadi and Kuitunen [19] from their survey of the Korle Lagoon that the presence of water does not always make communities healthier. Water carries harmful organisms or germs that cause cholera, typhoid, and diarrhoea. Source: Fieldwork, (2021). Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 37 © 2023 by the authors; licensee Asian Online Journal Publishing Group Figure 7. Health effects of pollution of the Chemu lagoon. Source: Fieldwork, (2021). 4.7. Efforts Made by Stakeholders to Combat Pollution of the Chemu Lagoon Though several legislations exist on coastal protection and sustainable management, there was the need to determine whether the community members had taken it upon themselves to protect the lagoon from pollution and extinction. Table 6 presents the residents' views on the attendance of the meeting to discuss the lagoon's pollution issue. From Table 6, 79% of the respondents said they had not heard about any form of meeting concerning lagoon management. About 21% said they had heard about some meetings. The findings corroborate the Environmental Protection Agency [EPA] [21] position that the authorities should enforce environmental stewardship laws in the catchment. The Ministry of Environment and Science and the Environmental Protection Agency (EPA) is projected to investigate the ecological consequences of sanitary development initiatives. Table 6. Institutions that call meetings. Agencies Frequency Percentage Assemblyman 21 5.5 Chief 15 4.0 NGO’s 43 11.5 TMA 298 79.0 Total 377 100 Source: Fieldwork, (2021). When asked if there were institutions that organised meetings on the lagoon's pollution, 79% of the respondents said the Tema Metropolitan Authority (TMA) organises such conferences. Others (about 12%) said that some non- governmental organisations (NGOs) do that, while 21 respondents mentioned that the Assembly members of the study areas do that, as presented in Table 6. These results indicate that the lagoon's mandate on protection and sustainability is virtually in the hands of TMA and the NGOs. Consequently, the TMA must embark on serious health education in the communities. The data reinforce the Environmental Protection Agency [EPA] [32] assertion that Ghana has a diverse range of non-governmental organisations and neighbourhood entities dedicated to environmental preservation and enhancement. The chiefs and assembly members of the selected communities are responsible for protecting and regulating the residents' activities. Still, their efforts (to preserve the lagoon) often meet challenges, including opposition from the community members who depended on the lagoon for their livelihoods. When the respondents were asked if the authorities act to protect the lagoon from pollution, 67% said that the leaders were helping in discussions to address the pollution problems and to stop the indiscriminate disposal of waste. In comparison, 33% said no authority helped. 5. Discussions The pollution issue of Ghana's coastal lagoons was identified decades ago [6]. Admittedly, nothing has changed to this day. According to the IPCC [35]; IPCC [36], releasing untreated sewage, manufacturing, and agricultural residues contaminates most coastal lagoons in West Africa, including Ghana. Urbanisation, industrialisation, population pressures and poor waste management systems commonly cause pollution. The pollution has adversely affected the ecosystem services of the lagoons, particularly fisheries resources and migratory birds from Europe [3, 37]. The results from the water quality analysis of the Chemu lagoon showed that turbidity, temperature, sulphate, phosphates, faecal coliforms, biological oxygen demand, zinc, manganese, lead, and cadmium exceeds the USEPA's permissible limits. This finding is in line with Adu-Boahen and Boateng [23] studies on the Fosu lagoon in Ghana that revealed higher concentrations of like parameters. Similar results were recorded by Biney [15] in the Chemu Lagoon. Biney [15] found that the surface water temperature of the lagoon ranged between 22OC and 36OC and attributed higher water temperature to the thermal pollution originating from industrial sources. The implication is Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 38 © 2023 by the authors; licensee Asian Online Journal Publishing Group that knowledge about pollution was known to the residents, but no significant improvement has been achieved over the years. The results stand with the position of Koledoye, et al. [38], who found in their study on the Lekki lagoon that anthropogenic activities have latent health and environmental impacts that have prognosticated grave concern if not urgently mitigated. In another study [39] on the Muni Pomadze and its catchment, it was revealed that most of the Physico-chemical properties studied, temperature, TDS, conductivity, pH, salinity, and dissolved oxygen (DO) were within the acceptable limit of USEPA for freshwater resources. According to Molina and Molina [31] the Head of the EPA in Tema, Mr Lambert Faabeluon, told the Daily Graphic that the institution and other interested parties had held a total of 12 symposiums and consultations since 1999 to probe strategies for preventing further harmful discharges into the Chemu lagoon, and to mobilise resources for the resuscitating the lagoon. Notwithstanding, hardly anything significant had come from the countless seminars and meetings held by relevant parties since 1999. The failure to progress on recovery and the lagoon's continued contamination is due to an absence of dedication by crucial parties to adopt measures and initiatives that will cease environmental damage and re-establish the lagoon. Despite citizen science identifying that the residents are not naïve to the deteriorating quality of the lagoon, the people who, for that matter, would be interested in the welfare of the lagoon are culprits themselves, as they also contribute to the pollution of the lagoon. About 34% Figure 3 indicated that they dispose of the refuse in the lagoon and its environs. This put the residents in a compromising situation to demand changes. The local authority contributes to the problem by not providing adequate waste deposal facilities Table 5, thus forcing the residents to contribute to the pollution so that they cannot demand change because they are offenders. This explains the reason the majority of the residents were aware of the extent of the pollution and its effects on health and socio-economic activities Table 5. Yet, they have failed to be the champions of change regarding the lagoon's pollution. The survey results from Table 6 indicate that the effort by the residents to restore the lagoon is about 10%. It is TMA and NGOs that have made the most effort. The most action should have come from the residents since they suffer from the immense pollution of the lagoon. Because the former administration by TMA and NGOs did not produce the desired results, it is required to empower residents to direct the campaign for the rehabilitation of the Chemu Lagoon. There is a need to bring all stakeholders on board in a participatory manner under the residents' leadership to develop the Chemu lagoon restoration plan. Such a plan will not be viewed as the traditional top-down government policy; all the participating stakeholders will own it. Such ownership by the stakeholders will facilitate the successful implementation of the plan. Regardless of the apparent connection between contamination and the development of fishery ecosystems (types of fish) and other economic interests from the Chemu Lagoon, there were insufficient patterns and attitudes on the degree of the environmental damage as well as the clear implications on local people's well-being and socio-economic existence. This paper has provided the baseline information required for action on developing a management strategy and committing to applying the existing environmental laws and policies in Ghana. The environment cannot be limited by national territorial boundaries [40]. Migratory birds that feed on the lagoon habitat could extend the impact of the pollution beyond Tema and its environs. Therefore, national, regional and international environmental pressure groups must join the call to restore Chemu and other polluted lagoons in Ghana. The following recommendations are made in light of the findings: • The Environmental Health Department and the Waste Management Department of the Tema Metropolitan Assembly are advised to intensify their house-to-house hygiene education and inspections in the catchment area on proper waste disposal to prevent indiscriminate defecation and flying tipping. • The effective use of the limited facilities located along the stretch of the lagoon should be addressed. The Assembly should increase the number of waste and sanitary facilities in the catchment area. • The Sanitation Task Force of the Tema Metropolitan Assembly should check the activities of the local people which pollute the lagoon. • Offenders found of indiscriminate defecation and dumping of refuse should be arrested and prosecuted to serve as a deterrent. • The Assembly should stop further slum creations and demolish the existing ones in the catchment area. • Residents, the Tema Metropolitan Assembly, the Tema Traditional Council, local industries, and the Central Government should work together to replenish the lagoon to its natural form. The collaborative efforts would strengthen the socio-economic status functions of the residents. The Assembly should prioritise the area's development into parks and gardens to assist in restoring the polluted ecosystems. 6. Conclusions The outcomes of water quality analyses using water samples from Chemu lagoons were significantly higher than the USEPA-recommended thresholds. This could be related to the lagoons being used as dumping grounds by most residents and the release of industrial emissions into the lagoons. Almost all the water quality parameters measured had higher values in the dry season than in the wet season. These results could be due to the evaporation of water from the lagoons' interface during the dry season, which resulted in higher concentrations in the lagoons. The level of siltation and the dumping of refuse into the lagoon hampers the free flow of water and hence encourage mosquito breeding of mosquitoes and the incidence of high malaria outbreak and other related diseases affecting the health and socio-economic lives of the people. The study concludes for informed resuscitation of the lagoon and the preservation of its ecological services, the data from this study, combined with future data, may help to monitor the Chemu lagoon. The various stakeholders are not doing enough to help combat the pollution problems in the area. It is worth noting that most respondents are unaware of any environmental law on the dumping of waste or the activities of groups forming slums along the lagoon and their further pollution. Insufficient sanitary facilities have led to indiscriminate solid waste disposal and defecation at the lagoon's banks. References [1] H. M. Conesa and F. J. Jiménez-Cárceles, "The Mar Menor lagoon (SE Spain): A singular natural ecosystem threatened by human activities," Marine Pollution Bulletin, vol. 54, no. 7, pp. 839-849, 2007. https://doi.org/10.1016/j.marpolbul.2007.05.007. https://doi.org/10.1016/j.marpolbul.2007.05.007 Asian Review of Environmental and Earth Sciences, 2023, 10(1): 28-39 39 © 2023 by the authors; licensee Asian Online Journal Publishing Group [2] B. Kjerfve, Coastal lagoon processes. Amsterdam, The Netherlands: Elsevier, 1994. [3] M. Entsua-Mensa, "The contribution of coastal lagoons to the continental shelf ecosystem of Ghana. The Gulf of Guinea large marine ecosystem," Elsevier. Science B.V, vol. 11, pp. 161-169, 2002. https://doi.org/10.1016/S1570-0461(02)80035-0. [4] N. T. Odjer-Bio, E. J. Belford, and M. Ansong, "What is happening to our Lagoons? The example of Butuah Lagoon in Ghana," International Journal of Energy and Environmental Engineering, vol. 6, no. 2, pp. 183-193, 2015. https://doi.org/10.1007/s40095-015- 0165-1. [5] I. Boateng, S. Mitchell, F. Couceiro, and P. Failler, "An investigation into the impacts of climate change on anthropogenic polluted coastal lagoons in Ghana," Coastal Management, vol. 48, no. 6, pp. 601-622, 2020. https://doi.org/10.1080/08920753.2020.1803565. [6] United Nations World Water Assessment Programme [UN WWAP], The world water development report 1: Water for people, water for life. Paris: UNESCO, 2003. [7] United Nations World Water Assessment Programme [UN WWAP], "World water assessment programme," The United Nations World Water Development Report 3, Water in a Changing World, 2009. [8] L. Florencio, M. T. Kato, and E. S. de Lima, "Integrated measures for preservation, restoration and improvement of the environmental conditions of the Lagoon Olho d'Agua basin," Environment International, vol. 26, no. 7-8, pp. 551-555, 2001. https://doi.org/10.1016/s0160-4120(01)00038-1. [9] M. Kwadzo, M. K. Miyittah, D. B. Dovie, R. K. Kosivi, and R. Owusu, "Pollution and climate change impacts on livelihood outcomes of lagoon fishermen in Central Region, Ghana," Current Research in Environmental Sustainability, vol. 4, p. 100137, 2022. https://doi.org/10.1016/j.crsust.2022.100137. [10] S. Prakash et al., "Potential of ecotourism development in the Lake Bosumtwi Basin: A case study of Ankaase in the Amansie East District, Ghana," Working Paper No. 15, Socio-Economics of Forest use in the Tropics and Subtropics, University of Freiburg, Germany, Prentice –Hall, Press, 2005. [11] United Nations Children's Fund, "UNICEF handbook on water quality," Waterlines, vol. 13, pp. 8-10, 2008. [12] World Health Organization, Guidelines for drinking-water quality: second addendum. Vol. 1, Recommendations. Geneva: World Health Organization, 2008. [13] FAO, "The world's mangroves 1980-2005," FAO Forestry Paper No. 153, 2007. [14] P. K. Acheampong, Themes and earth. Cape Coast: University Press, University of Cape Coast, 2009. [15] C. A. Biney, "Preliminary survey of the state of pollution of the coastal environment of Ghana," Oceanology Minutes, no. SP, pp. 39– 43, 1982. [16] N. K. O. Anny, "Chemu Lagoon, an end in sight?," Retrieved: http://www.ghanaweb.com/GhanaHomePage/NewsArchive/artikel.php?ID=120267. [Accessed 2007. [17] MyJoyOnline.com, "TOR sued for pollution," Retrieved: https://www.myjoyonline.com/tor-sued-for-pollution/. [Accessed January 11, 2023], 2007. [18] D. Essumang, C. Adokoh, J. Afriyie, and E. Mensah, "Source assessment and analysis of polycyclic aromatic hydrocarbon (PAH's) in the Oblogo waste disposal sites and some water bodies in and around the Accra metropolis of Ghana," Journal of Water Resource and Protection, vol. 1, no. 6, pp. 456-468, 2009. https://doi.org/10.4236/jwarp.2009.16055. [19] K. Owusu Boadi and M. Kuitunen, "Urban waste pollution in the Korle lagoon, Accra, Ghana," Environmentalist, vol. 22, no. 4, pp. 301-309, 2002. [20] Environmental Protection Agency [EPA], Environmental policy on pollution in Ghana. Ghana: Environmental Protection Agency, 1991. [21] Environmental Protection Agency [EPA], "Ghana environmental resource management project," Development Options for Coastal Wetlands, Final Report No. 1 & 2, 1994. [22] Ghana Districts, "Metropolitan theme assemby," Retrieved: https://www.ghanadistricts.com/Home/District/118. [Accessed 2012. [23] K. Adu-Boahen and I. Boateng, "Mapping seasonal variation in the distribution and concentration of heavy metals using water quality index and geographic information system based applications," Journal of Geographical Research, vol. 4, no. 2, pp. 31-42, 2021. https://doi.org/10.30564/jgr.v4i2.3100. [24] J. R. Fraenkel and N. E. Wallen, How to design and evaluate research in education, 4th ed. Boston: MA, McGraw-Hill, 2000. [25] R. L. Gay, Educational research: Competencies for analysis and application, 4th ed. New York: Merrill/Macmillan, 1992. [26] Ghana Statistical Service, "Metropolitan theme assembly," Retrieved: https://www2.statsghana.gov.gh/docfiles/2010_District_Report/Greater%20Accra/Tema%20Metro.pdf. [Accessed 2010. [27] R. V. Krejcie and D. W. Morgan, "Determining sample size for research activities," Educational and Psychological Measurement, vol. 30, no. 3, pp. 607-610, 1970. https://doi.org/10.1177/001316447003000308. [28] L. D. De Lacerda, "Biogeochemistry of heavy metals in coastal lagoons," Elsevier Oceanography Series, vol. 60, pp. 221-241, 1994. https://doi.org/10.1016/s0422-9894(08)70013-8. [29] P. A. G. M. Scheren, "Integrated water pollution assessment in data- and resource-poor situations: Lake Victoria and Gulf of Guinea case studies," PhD Thesis, Eindhoven University of Technology, The Netherlands, 2003. [30] Ghana Business News, "GPHA to dredge heavily polluted Chemu Lagoon at the cost of over GH¢7.5m," Retrieved: https://www.ghanabusinessnews.com/2019/12/06/gpha-to-dredge-heavily-polluted-chemu-lagoon-at-cost-of-over-gh%C2%A27- 5m/. [Accessed 1 September 2022, 2019], 2019. [31] M. J. Molina and L. T. Molina, "Megacities and atmospheric pollution," Journal of the Air & Waste Management Association, vol. 54, no. 6, pp. 644-680, 2004. [32] Environmental Protection Agency [EPA], State of environment report 2001. Accra: Environmental Protection Agency, 2004. [33] B. Thorne-Miller, The living ocean: Understanding and protecting marine biodiversity. Washington, D.C: Island Press, 1999. [34] G. Mulamoottil, "Indigenous institutions and environmental assessment: The case of Ghana," Environmental Management, vol. 21, no. 2, pp. 159-171, 1997. https://doi.org/10.1007/s002679900015. [35] IPCC, Climate change 2007, Impacts, adaptation and vulnerability: contribution of working group II to the fourth assessment report of the IPCC. Cambridge: Cambridge University Press, 2007. [36] IPCC, Climate Change 2014: Impacts, adaptation, and vulnerability. Part B: Regional aspects. Contribution of working group II to the fifth assessment report of the intergovernmental panel on climate change, In V. R. Barros, C. B. Field, D. J. Dokken, M. D. Mastrandrea, K. J. Mach, T. E. Bilir, M. Chatterjee, K. L. Ebi, Y. O. Estrada, R. C. Genova, B. Girma, E. S. Kissel, A. N. Levy, S. MacCracken, P. R. Mastrandrea, and L. L. White Eds. Cambridge, United Kingdom and New York, USA: Cambridge University Press, 2014. [37] Y. Ntiamoa-Baidu, "Conservation of coastal lagoons in Ghana: The traditional approach," Landscape and Urban Planning, vol. 20, no. 1-3, pp. 41-46, 1991. https://doi.org/10.1016/0169-2046(91)90089-5. [38] T. Koledoye, B. Akinsanya, K. Adekoya, and P. Isibor, "Physicochemical parameters of the Lekki Lagoon in relation to abundance of Wenyonia sp Woodland, 1923 (Cestoda: Caryophyllidae) in Synodontis clarias (Linnaeus, 1758)," Environmental Challenges, vol. 7, p. 100453, 2022. https://doi.org/10.1016/j.envc.2022.100453. [39] N. Y. Boanu, I. Y. Dadson, K. Adu-Boahen, and E. O. Yeboah, "Assessment of the Physico-chemical Properties in the Muni-Pomadze Ramsar Site and its Catchment in Winneba, Ghana," Environmental Protection Research, vol. 2, no. 2, pp. 95-111, 2022. https://doi.org/10.37256/epr.222022786. [40] M. S. Islam and M. Tanaka, "Impacts of pollution on coastal and marine ecosystems including coastal and marine fisheries and approach for management: A review and synthesis," Marine Pollution Bulletin, vol. 48, no. 7-8, pp. 624-649, 2004. https://doi.org/10.1016/j.marpolbul.2003.12.004. Asian Online Journal Publishing Group is not responsible or answerable for any loss, damage or liability, etc. caused in relation to/arising out of the use of the content. Any queries should be directed to the corresponding author of the article. https://doi.org/10.1016/S1570-0461(02)80035-0 https://doi.org/10.1007/s40095-015-0165-1 https://doi.org/10.1007/s40095-015-0165-1 https://doi.org/10.1080/08920753.2020.1803565 https://doi.org/10.1016/s0160-4120(01)00038-1 https://doi.org/10.1016/j.crsust.2022.100137 http://www.ghanaweb.com/GhanaHomePage/NewsArchive/artikel.php?ID=120267 https://www.myjoyonline.com/tor-sued-for-pollution/ https://doi.org/10.4236/jwarp.2009.16055 https://www.ghanadistricts.com/Home/District/118 https://doi.org/10.30564/jgr.v4i2.3100 https://www2.statsghana.gov.gh/docfiles/2010_District_Report/Greater%20Accra/Tema%20Metro.pdf https://doi.org/10.1177/001316447003000308 https://doi.org/10.1016/s0422-9894(08)70013-8 https://www.ghanabusinessnews.com/2019/12/06/gpha-to-dredge-heavily-polluted-chemu-lagoon-at-cost-of-over-gh%C2%A27-5m/ https://www.ghanabusinessnews.com/2019/12/06/gpha-to-dredge-heavily-polluted-chemu-lagoon-at-cost-of-over-gh%C2%A27-5m/ https://doi.org/10.1007/s002679900015 https://doi.org/10.1016/0169-2046(91)90089-5 https://doi.org/10.1016/j.envc.2022.100453 https://doi.org/10.37256/epr.222022786 https://doi.org/10.1016/j.marpolbul.2003.12.004