Get Air Quality (Environmental Issues) PDF

By Yael Calhoun

ISBN-10: 0791082016

ISBN-13: 9780791082010

ISBN-10: 1438102283

ISBN-13: 9781438102283

Ever because the commercial Revolution, air caliber has been slowly constructing into the most urgent concerns dealing with either the U.S. and the area. As toxins fromn undefined, cars, and chemical compounds has elevated, evnironmental advocates became extra vocal of their calls for for laws.

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Examples of toxic air pollutants include benzene, which is found in gasoline; perchlorethlyene, which is emitted from some dry cleaning facilities; and methylene chloride, which is used as a solvent and paint stripper by a number of industries. Examples of other listed air toxics include dioxin, asbestos, toluene, and metals such as cadmium, mercury, chromium, and lead compounds. What Are the Health and Environmental Effects of Toxic Air Pollutants? People exposed to toxic air pollutants at sufficient concentrations and durations may have an increased chance of getting cancer or experiencing other serious health effects.

Some building materials and cleaning solvents). Some air toxics are also released from natural sources such as volcanic eruptions and forest fires. How Are People Exposed to Air Toxics? People are exposed to toxic air pollutants in many ways that can pose health risks, such as by: What Pollutes the Air We Breathe? • Breathing contaminated air. • Eating contaminated food products, such as fish from contaminated waters; meat, milk, or eggs from animals that fed on contaminated plants; and fruits and vegetables grown in contaminated soil on which air toxics have been deposited.

Increases in respiratory symptoms like coughing and difficult or painful breathing – chronic bronchitis – decreased lung function – premature death. Visibility Impairment • PM is the major cause of reduced visibility (haze) in parts of the United States, including many of our national parks. Atmospheric Deposition • Particles can be carried over long distances by wind and then settle on ground or water. The effects of this settling include: – making lakes and streams acidic – changing the nutrient balance in coastal waters and large river basins – depleting the nutrients in soil – damaging sensitive forests and farm crops – affecting the diversity of ecosystems.

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Air Quality (Environmental Issues) by Yael Calhoun


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