id	keyword
arees-3296	dust
arees-3296	chlorophyll
arees-3296	plant
arees-3296	site
arees-3296	air
arees-3296	leaves
arees-3296	leaf
arees-3296	species
arees-3296	asian
arees-3296	content
arees-3296	journal
arees-3296	pollution
arees-3296	contamination
arees-3296	load