31.   The EPA says the station is contaminated with volatile organic compounds and heavy metals.

32.   The Japanese researchers, reporting in Nature, discovered that the volatile compounds activate five defense genes in an uninfested plant.

33.   The next year, he joined Harris County leaders, businesses and environmental leaders in drawing up guidelines for reducing the emissions of nitrogen oxides and volatile organic compounds.

34.   The other walls showcase Sherwin-Williams HealthSpec, a nontoxic latex paint designed for use in hospitals because it is free of volatile organic compounds.

35.   The problem is that skin-borne chemicals have to evaporate readily in order to reach airborne mosquitoes, and such volatile compounds are hard to nab for study.

36.   The volatile compounds that make up an aroma cause these polymers to change shape, which alters the resistance to the current passing through the electrodes.

37.   The toxicology on those volatile organic compounds, commonly referred to as TCEs and PCEs, is less clear, Freeman said.

38.   They are suspected of being contaminated with volatile organic compounds, such as heavy metals, petroleum products and a variety of chemicals.

39.   To cut pollution, communities must reduce volatile organic compounds and nitrogen oxide.

40.   Today, attention is focused on ozone pollution, which is formed from nitrogen oxide and volatile organic compounds that are emitted by gasoline stations, automobiles and smokestacks.