id	keyword
easat-10470	benzene
easat-10470	health
easat-10470	exposure
easat-10470	vol
easat-10470	air
easat-10470	pollution
easat-10470	thailand
easat-10470	concentrations
easat-10470	rayong
easat-10470	environmental
easat-10470	study
easat-10470	risk
easat-10470	average
easat-10470	province