EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. SJ. Vol. 17, No. 1 (June, 2013): 17 - 23 Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India Golekar R. B.1, Patil S. N.2 and Baride M. V.3 1Department of Applied Geology, School of Environmental and Earth Sciences, North Maharashtra University Jalgaon, 425001 (M.S.), India E-mail: rbgolekar@gmail.com 2Department of Applied Geology, School of Environmental and Earth Sciences, North Maharashtra University Jalgaon, 425001 (M.S.), India E-mail: sanp2@rediifmail.com 3Department of Geology, Z.B. Patil College, Dhule 424002 (M.S.), India E-mail: baridemv@gmail.com Corresponding author: M. V. Baride (e-mail): baridemv@gmail.com HYDROGEOLOGY The present study was aimed at assessing ground water chemistry, with reference to drinking water quality; the Anjani and Jhiri river catchment area in the Jalgaon district, northern Maharashtra, India, was selected. Ten ground water samples were collected from different locations in two urban areas (Daharangaon and Erandol) and some samples from rural water supply wells during the pre-monsoon 2011 and post-monsoon 2011 seasons. Trace elements were analysed from collected groundwater samples using standard techniques. The ground water pollution observed at some study area sites was mainly due to waste disposal and agricultural activities and vehicles burning fossil fuel. The present investigation was based on the occurrence of trace elements such as Fe, Zn, Cu, Ni, Mn, Pb and Cd in groundwater samples, concentration ranging from 0 to 0.096 ppm, 0.066 to 0.427 ppm, 0 to 0.012, 0.026 to 0.361 ppm, 0 to 0.160 ppm, 0.968 to 1.516 ppm and 0 to 1.064 ppm, respectively. The analysis of ground water chemistry and results were compared to BIS drinking water standards. The concentration of lead, cadmium and nickel exceeded the maximum permissible limit, as per BIS drinking water standards. El presente estudio está enfocado en una evaluación química con referencia a los estándares de calidad del agua potable. Para su ejecución se seleccionó la zona de captación de los ríos Anjani y Jhiri, en el distrito Jalgaon, en Maharashtra, al norte de la India. Se recolectaron diez muestras de agua en diferentes locaciones de dos áreas urbanas (Daharangaon y Erandol) y algunas muestras en pozos de zonas rurales antes y después de la temporada monsónica de 2011. Los elementos Traza fueron analizados en las muestras con técnicas estandarizadas. La contaminación de las aguas sub- terráneas en algunas zonas de estudio se debe, principalmente, a la disposición de aguas residuales, a la actividad agrícola y al residuo generado por motores que trabajan con combustibles fósiles. La presente investigación se basó en la presencia de elementos Traza como Fe, Zn, Cu, Ni, Mn, Pb y Cd en los ejemplos hechos y que se concentran en rangos de 0 a 0.096 ppm; de 0.066 a 0.427 ppm; de 0 a 0.012 ppm; de 0.026 a 0.361 ppm; de 0 a 0.160 ppm; de 0.968 a 1.516 ppm, y de 0 a 1.064 ppm. El análisis químico de las aguas subterráneas y los resultados fueron comparados a los estándares de agua potable de BIS. Las concentraciones de cadmio y níquel, sobre todo, exceden el límite permitido por BIS. Key words: trace element, ground water, health hazard, Anjani - Jhiri River catchment area, northern Maharashtra, India. Palabras clave: Elementos Traza, riesgos de salud, captación, ríos Anjani y Jhiri, Maharashtra, India. Record Manuscript received: 24/10/2012 Accepted for publication: 20/03/2013 ABSTRACT RESUMEN 1. Introduction Ground water pollution is a major concern in urban areas in many countries around the world. The study area, the Anjani and Jhiri river cat- chment areas (TAPM006), covered part of northern Maharashtra, India. Location map of study has shown in figure 1. This area’s drinking water supply depends upon the Anjani dam but rainfall has been very scanty during the last few years in the study area, groundwater being the only remaining source of water; ground water level has declined in the study area due to overexploitation. Some wells or bore holes’ ground water level Figure 1: Location map of the study area Golekar R. B., Patil S. N. and Baride M. V. is deeper than 30 to 60 meters below the surface. Another major current issue in the study area concerns ground water quality which has been badly affected by urban waste water and the excessive use of pesticides/fertiliser in agricultural areas. Another source of ground water pollution may be heavy transport vehicles burning fossil fuel. The study area is geologically covered by Deccan trap rocks from the Cretaceous to the lower Eocene age, consisting of amygdaloidal and vesi- cular basalts. Some areas are covered by thick alluvium from the Quater- nary age along river channels. Geological map of study area has shown in figure 2. Hydro-geologically, the study area has two types of aquifer (shallower under unconfined and deeper under confined types). The study area’s ground water has been polluted due to the influence of waste water in groundwater and agricultural activities and transport burning fossil fuel. The results from of analysing ground water chemistry were compared to recommended guidelines as per Bureau of Indian standards (BIS-2003). Figure 2: Geological map of the study area 2. Materials and Method The 10 ground water samples were collected during May 2011 and November 2011 for pre-monsoon and post-monsoon periods, respectively. Water samples were collected from wells in clean one-litre polyethylene Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India sample bottles. Sampling locations are shown in Table 1.Water samples were analysed by adopting standard procedure (APHA, 1998). Trace ele- ments Viz. Ni, Mn, Zn, Cd, Pb, Cu and Fe were analysed from ground water samples by Atomic Absorption Spectrometer (Thermo Scientific) using acetylene gas and hollow cathode lamps. The data obtained from hydro-chemical analysis was compared to BIS 2003 and WHO guidelines for drinking water standards. A global positioning system (GPS, Garmin make) was used for determining precise sampling point locations in the field and giving the exact latitude, longitude and altitude. Iso-concentra- tion/contour maps were prepared with the help of Surfer 7.0 software to delineate spatial variation regarding trace elements from the study area’s groundwater samples. 3. Result and Discussion 3.1 Trace elements Trace elements primarily come from source rocks due to weathering and, in moderate contamination levels, are usually harmless to organisms; however, when their concentration increases they become considerably harmful to human and other living organisms. Trace elements have increa- sed in ground water during the last few years as it has become contamina- ted by human activities, like agriculture, fossil fuel burning and industrial effluent, etc. It is clear that trace elements are entering aquatic systems from either point or non-point sources (Elder 1988). Trace element con- centration in ground water was thus determined for the Anjani - Jhiri river catchment area, mainly consisting of urban and rural water supply wells. The results for trace elements are shown in Tables 2 and 3; the recommen- ded guidelines as per Bureau of Indian standards (BIS-2003) are given in Table 4. Figures 3, 4, 5, 6, 7, 8 and 9 indicate spatial variation for Fe, Zn, Cu, Ni, Mn, Pb and Cd, respectively, regarding the present study area. Iron Fe concentrations were found during the pre-monsoon period in 2011, ranging from BDL to 0.096 ppm (average 0.047) and the post- monsoon period 2011 from BDL to 0.068 ppm (average 0.026 ppm). A maximum permissible Fe concentration of 1 mg/l for drinking purpose (BIS 2003) suggested that the all the samples from the study area were excellent. Zinc Zinc concentration during the pre-monsoon period 2011 ranged 0.096 to 0.427 ppm (average 0.177 ppm) and ranged from 0.066 to 0.248 ppm post-monsoon period 2011 (average 0.158 ppm). Zinc concentration in all samples of the study area within the permissible limit of (15 ppm BIS-2003). The main source of zinc was fertilisers, pesticides and herbici- des used for agricultural purposes. Zinc is an essential element for human health and agriculture; it plays an important role in protein synthesis and carbohydrate metabolism (Tylor and Demayo, 1980). Zinc is relatively non-toxic up to 25 ppm in drinking water (MC Neely et al., 1979). Copper Cu ranged from 0.002 to 0.010 ppm (average 0.007 ppm) during the pre-monsoon period in 2011 and BDL to 0.012 during the post-monsoon period 2011 (average 0.005). Cu concentration in all water samples collec- ted from the study area came within the maximum permissible limit (1.5 ppm, BIS 2003). Cu is an essential element for human health. It has a toxic effect on human health if the concentration is below the desirable limit. Anaemia, diarrhoea etc., can be caused due to Cu deficiency (Md. Abdu- Golekar R. B., Patil S. N. and Baride M. V. llah Khan and Sarfaraz Ahmad, 2010). Overdoses of copper may also lead to neurological disorder, hypertension, liver and kidney dysfunction (La- rocque and Rasmussen 1998; Rao et al. 2001; Krishna and Govil, 2004). Nickel Ni concentration during pre-monsoon season 2011 ranged from 0.070 to 0.361 ppm (average 0.235 ppm) and ranged from 0.026 to 0.350 during the post-monsoon season 2011 (average 0.225 ppm). Nickel con- centration in most groundwater samples from the study area exceeded the permissible limit (0.07 ppm, BIS 2003). A higher nickel concentration is harmful to human health as this may lead to lung cancer (MC Neely et al., 1979). Manganese Mn concentration during the pre-monsoon 2011 season ranged from 0.003 ppm to 0.026 (average 0.010 ppm) and ranged from BDL to 0160 Table 2.Trace elements in ground water samples from the Anjani and Jhiri River catchment area, northern Maharashtra, India Sample ID Fe Fe Average Zn Zn Average Cu Cu Average Season pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 1 0.0469 0.0362 0.0416 0.4269 0.1963 0.3116 0.0019 0.0012 0.0016 2 0.0634 0.0644 0.0639 0.1196 0.2034 0.1615 0.0096 0.0062 0.0079 3 0.0963 BDL 0.0963 0.1369 0.1481 0.1425 0.0062 0.0122 0.0092 4 0.0063 BDL 0.0063 0.0962 0.0882 0.0922 BDL 0.0012 0.0012 5 0.0696 0.0326 0.0511 0.1369 0.1228 0.1299 BDL BDL BDL 6 0.0596 0.0436 0.0516 0.1789 0.2202 0.1996 BDL BDL BDL 7 0.0096 0.0097 0.0097 0.1963 0.1723 0.1843 0.0063 BDL 0.0063 8 BDL BDL BDL 0.1196 0.1183 0.1190 0.0085 BDL 0.0085 9 BDL BDL BDL 0.0963 0.0658 0.0811 0.0065 0.0039 0.0052 10 0.0236 0.0682 0.0459 0.2636 0.2481 0.2559 0.0091 BDL 0.0091 Maximum 0.0963 0.0682 0.0823 0.4269 0.2481 0.3375 0.0096 0.0122 0.0109 Minimum BDL BDL BDL 0.0962 0.0658 0.0810 0.0019 BDL 0.0019 Average 0.0469 0.0262 0.0366 0.1771 0.1584 0.1678 0.0069 0.0049 0.0059 All trace elements are expressed in ppm, where BDL = below the detected level ppm post-monsoon season 2011 (average 0.054 ppm). Mn concentration in the study area was below the maximum permissible limit (0.5 ppm, BIS 2003). Manganese is an essential nutrient for humans; Mn deficiency can disrupt the central nervous system and reproductive functions (MC Neely et al., 1979). Lead Pb level during the pre-monsoon season 2011 varied from 0.006 to 0.968 ppm (average 0.227 ppm) and 0.018 to 1.516 during the post- monsoon season 2011 (average 0.719 ppm). 60% of water samples from the study area had a Pb concentration above the maximum permissible limit (0.05 ppm, BIS 2003); this suggested that the water was not suitable for drinking purposes in the study area. Lead is naturally present in trace amounts in all biological materials, i.e. in soil, water, plants and animals. The main source of lead contamination was due to transport burning fossil fuel (Smirjakova S et al., 2005). Table 1: Sampling locations from study area Sample ID Latitude in decimals Longitude in decimals MASL (in meters) Water level pre- monsoon 2011 Water level post- monsoon 2011 1 20.98 75.28 232.6 14.6 10.6 2 20.86 75.36 216.9 6.5 4 3 20.91 75.32 212.6 9.5 7 4 20.9 75.33 211.8 * * 5 20.94 75.32 222 12.6 8.9 6 20.83 75.38 218.9 9.5 7.5 7 21.01 75.27 232.4 * * 8 21.01 75.26 220.6 10.5 6.5 9 21.01 75.28 224.6 12.9 7.9 10 20.99 75.29 238.2 11.6 8.5 (MASL indicates metres above sea-level, * bore/tube well water) Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India Table 3.Trace elements in ground water sample from Anjani and Jhiri river catchment area, Northern Maharashtra, India Sample ID Ni Ni Average Mn Mn Average Pb Pb Average Cd Cd Average Season pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 1 0.2966 0.0263 0.1615 0.026 0.16 0.093 0.846 0.637 0.7415 0.096 0.057 0.0765 2 0.1963 0.2605 0.2284 0.005 0.002 0.0035 0.09 0.367 0.2285 0.316 0.095 0.2055 3 0.1789 0.1787 0.1788 0.003 0.002 0.0025 0.036 0.018 0.027 0.096 0.042 0.069 4 0.3216 0.2916 0.3066 0.006 BDL 0.006 0.006 1.516 0.761 0.896 BDL 0.896 5 0.3606 0.3245 0.3426 0.006 BDL 0.006 0.089 0.958 0.5235 1.026 0.126 0.576 6 0.1789 0.1978 0.1884 0.004 BDL 0.004 0.079 0.56 0.3195 0.79 0.095 0.4425 7 0.0695 0.0618 0.0657 0.01 BDL 0.01 0.046 0.186 0.116 0.169 0.047 0.108 8 0.3165 0.3498 0.3332 0.016 BDL 0.016 0.01 0.964 0.487 0.963 BDL 0.963 9 0.1963 0.3370 0.2667 0.006 BDL 0.006 0.968 1.181 1.0745 1.064 0.1 0.582 10 0.2369 0.2174 0.2272 0.013 BDL 0.013 0.098 0.805 0.4515 0.959 0.107 0.533 Maximum 0.3606 0.3498 0.3552 0.026 0.16 0.093 0.968 1.516 1.242 1.064 0.126 0.595 Minimum 0.0695 0.0263 0.0479 0.003 BDL 0.003 0.006 0.018 0.012 0.096 BDL 0.096 Average 0.2352 0.2245 0.2299 0.01 0.054 0.032 0.227 0.719 0.473 0.638 0.084 0.361 Table 4.BIS limit regarding drinking water standards (all values are expressed in ppm) Trace element Fe Zn Cu Ni Mn Pb Cd BIS desirable limit 0.3 5 0.05 0.07 0.1 0.05 0.01 Maximum permissible limit 1.0 15 1.5 No relaxation 0.3 No relaxation No relaxation Cadmium Cd in the pre-monsoon season 2011 varied from 0.096 to 1.064 ppm (average 0.638 ppm) and varied from BDL to 0.16 post-monsoon 2011 (average 0.084 ppm) in ground water samples from the study area. Cd con- centration in 10 (55%) water samples was above the maximum permissible limit (0.01 ppm, BIS 2003); this suggested that the water was not suitable for drinking purposes in the study area. Cd is found in very low concentrations in most rocks; other sources of cadmium in groundwater come from burning fossil fuels and applying fertiliser, etc. Cd is found in basaltic rock (0.15 ppm) (Krasukopf K and Bird D, 1994), but is not essential for plants, animals and humans. Long-term exposure (over years or decades) to cadmium in drinking water may be a cause of kidney damage (BIS 2003) and can also lead to anae- mia, cardiovascular disease and hypertension (Mielke H. W et al., 1991; Ro- bards and Worsfold, 1991). Cadmium’s effect on the cardiovascular system can be explained by relating nutritional cadmium to hypertension (Schroeder, 1965). Seasonal variation of trace elements in ground water The percentage of average trace element concentration in ground water samples during the pre-monsoon and post-monsoon periods is given in Tables 2 and 3. A change in trace element concentration was observed with a change in season. Monsoon rainfall affected the concentration of most elements in different ways; the above Table shows that average Fe, Mn, Cd, Ni, Zn and Cu concentrations in ground water samples during the post-monsoon season were lower by varying degrees due to the dilution effect. On the other hand, Pb had a higher concentration in samples du- ring the post-monsoon season. Surface run-off from the agricultural land where chemical fertilisers, pesticides and herbicides, etc, were present also contributed to enriching trace element concentration. Fe, Mn, Cd, Ni, Zn and Cu show had lower concentrations in post-monsoon ground water samples. The dilution effect shown by these elements was due to the influx of a greater amount of rainwater due to monsoon rainfall. 4. Conclusion Ground water in the study area was polluted due to the influence of waste water from urban areas, excessive use of fertilisers and pesticide from agricultural areas and from transport burning fossil fuels. Most ground water samples had Pb, Ni and Cd concentrations exceeding the permissible limits recommended by BIS (2003) for drinking purposes. Trace element concentrations in ground water were found to decrease in the following sequence: Cd >Pb> Zn > Ni > Fe > Cu >Mn. This study has thus shown that ground water in the study area was polluted by toxic and trace elements from samples collected during the pre-monsoon (May 2011) and post-monsoon seasons (December-2011). The results showed that the ground water was significantly contami- nated by Cd, Pb and Ni which might have led to various health problems. However, it has been assumed that the anomalous concentrations of Nic- kel in the vicinity of highways and industry resulted from anthropogenic input. Cd concentration in the study area was mainly due to its presence in basaltic rocks and Pb concentration was due to transport burning fossil fuels and farmers applying fertilisers. Acknowledgements Financial assistance, in the form of a Major Research Project (SR/S4/ ES-328/2008), awarded to one of the authors (MVB) by the Department of Science and Technology (DST) Govt. of India, New Delhi, is gratefully acknowledged. The co-operation of North Maharashtra University officials is also acknowledged. The author would like to thanks unknown reviewers for their valuable comments and suggestions, which improved the quality of this manuscript. 5. References APHA (1998) Standard methods for the examination of water and waste water, 19th edition. APHA, Washington DC, USA BIS (2003) Drinking Water Standards (IS: 10500 91 revised 2003) Edmonds, W. M. (1971) Hydro geochemistry of ground waters in the Derbyshire with special reference to trace Constituents Reports 71/7, Inst Geol. Sci. Great Britain Elder (1988) Metal Biogeochemistry in Surface water system A revise of prin- ciples and concepts United States Geological Survey Circular 1013 pp 43 Golekar R. B., Patil S. N. and Baride M. V. Figure 7.Mn spatial variation Figure 9.Cd spatial variation Figure 8.Pbspatial variation Figure 3.Fe spatial variation Figure 5.Cu spatial variatio Figure 6. Ni spatial variation Figure 4. Zn spatial variation Krasukopf Konrad and Bird Dennis K. (1994) Textbook of Introduction to Geochemistry Published by McGraw Hill INC 591 pp Krishna, A. K., & Govil, P. K. (2004). Heavy metal contamination of soil around Pali industrial area, Rajasthan, India. Environmental Geology, 47, 38–44 Larocque, A. C., & Rasmussen, P. E. (1998). An overview of trace me- tals in the environment: Mobilization to remediation. Environmental Geology, 33, 85–91 McNeely R N Neimania v p and Dwyer L (1979) Water quality source book A guide to water quality parameter Inland water Directorate Water quality Branch Ottawa Canada pp 1-65 Md. Abdullah Khan and Sarfaraz Ahmad (2010) trace metal concentration in the waters of Rivers and Ponds in valley Field Intermontane Basin In the eastern Himalayas Journal of Applied Geochemistry Volume. 12 No 2 pp 242-252 Mielke, H. W., Adams, J. L., Chaney, R. L., Mielke, P. W., and Raviku- mar, V. C. (1991). The pattern of Cadmium in the environment of five Minnesota cities. Environmental Geochemistry and Health, 13, 29–34 Rao, M. S., Gopalkrishnan, R., and Venkatesh, B. R. (2001) Medical geo- logy-an emerging field in environmental science. In National sympo- sium on role of earth sciences (pp. 213–222). Integrated and Related Social issues GSI Special. Pub. No. 65(II). Robards, K., and Worsfold, P. (1991). Cadmium: Toxicology and analysis, a review. Analyst, 116, 549–568 Schroeder, H. A. (1965). Cadmium as a factor in hypertension Journal of Chronic Diseases, 18, 647–656 Smirjakova and Ondrasovicova O., Kaskova A., Lakticova K (2005) Folia Veternaria 49, 3 - Supplementum The effect of cadmium and lead pollution on human health pp 31- 32 Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India