Medical wastes are not the major pollutants in these areas.

Traditionally, releases of major pollutants to air, land and water have been subject to separate controls.

Plastics are one of the major pollutants of the environment.

Indeed, emissions of the major pollutants addressed by the act have declined substantially.

But it will measure another major pollutant, nitrogen oxides, for the first time.

It gives something much more useful: a view of how manufacturers perform across all the major pollutants.

Another major pollutant besides illegal dumping is the trash left on city streets.

Livestock manure contributes major pollutants and has become a growing problem in many areas.

Major pollutants indicated by the study include glycol ethers and 1,2,4-trimethylbenzene.

Major pollutants indicated by the study included sulfuric acid and chlorine.