noun
ADJECTIVE
▪ air , atmospheric , environmental , water
▪ biological , chemical , hazardous , organic , toxic
▪ major
▪ common
▪
Both are common ~s and suspected carcinogens.
▪ industrial
▪ airborne
VERB + POLLUTANT
▪ discharge , emit , release
▪ reduce
▪
a washable filter to reduce air ~s
▪ remove
PREPOSITION
▪ ~ from
▪
~s from nearby industries
▪ ~ in
▪
~s in exhaust gases
PHRASES
▪ the emission of ~s , the release of ~s