Sentences with phrase «common air pollutants by»

Not exact matches

As a result, combined emissions of six common air pollutants have dropped by about 70 percent nationwide since the 1970 passage of the Clean Air Act, which regulates U.S. emissions of hazardous air pollutanair pollutants have dropped by about 70 percent nationwide since the 1970 passage of the Clean Air Act, which regulates U.S. emissions of hazardous air pollutanAir Act, which regulates U.S. emissions of hazardous air pollutanair pollutants.

Carbon monoxide, sulfur dioxide and nitrogen oxides produced by industry and motor vehicles are common air pollutants.

Recent scientific studies, including an assessment by the United Nations Environment Program and the World Meteorological Organization indicate that it's possible to slow the pace of warming and melting in the Arctic in the near term by reducing emissions of two common air pollutants, soot and smog.

That's ozone as in smog, a common pollutant floating around in homes and offices, released by copy machines, laser printers and even some indoor air purification systems.

Inside this book, we take a look at ten plants, originally studied by NASA in the 70s and 80s, which were proven to be effective at cleaning the air and mitigating common indoor environmental pollutants.