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| Rain, snow, or dry particles deposited from the air due to increased acids released by anthropogenic or natural resources | ||
| Minute particles or liquid droplets suspended in the air | ||
| Changes in environmental quality that offend our aesthetic senses | ||
| The air that immediately surrounds us | ||
| A persistent inflammation of bronchi and bronchioles (large and small airways in the lungs) | ||
| Colorless, odorless, nonirritating but highly toxic gas produced by incomplete combustion of fuel, incineration of biomass or solid waste, or partially anaerobic decomposition of organic material | ||
| Chemical compounds with a carbon skeleton and one or more attached chlorine and fluorine atoms. Commonly used as refrigerants, solvents, fire retardants, and blowing agents | ||
| Irreversible damage to the lining of the lungs caused by irritants | ||
| The seven major pollutants (sulfur dioxide, carbon monoxide, particulates, hydrocarbons, nitrogen oxides, photochemical oxides, and lead) identified and regulated by the U.S. Clean Air Act | ||
| Substances that enter the air without going through a smokestack, such as dust from soil erosion, strip mining, rock crushing, construction or building demolition | ||
| Especially dangerous air pollutants including, carcinogens, neurotoxins, mutagens, teratogens, endocrine system disruptors, and other highly toxic compounds | ||
| Highly reactive gases formed when nitrogen in fuel or combustion is heated to over 650C (1200F) in presence of oxygen or when bacteria in soil or water oxidize nitrogen-containing compounds | ||
| A highly reactive molecule containing three oxygen atoms; a dangerous pollutant in ambient air. In the stratosphere, however, ozone forms an ultraviolet absorbing shield that protects us from mutagenic radiation | ||
| Atmospheric aerosols, such as dust, ash, soot, lint, smoke, pollen, spores, algal cells, and other suspended materials; originally applied only to solid particles but now extended to droplets of liquid | ||
| Products of secondary atmospheric reactions | ||
| Chemicals released directly into the air in a harmful form | ||
| Chemicals modified to a hazardous form after entering the air or that are formed by chemical reactions as components of the air mix and interact | ||
| The ozone occurring in the stratosphere to 10 to 50 km above the earth's surface | ||
| A colorless, corrosive gas directly damaging to both plants and animals | ||
| When an injury caused by exposure to two environmental factors together is greater than the sum of exposure of each factor individually | ||
| A subtle layer of warm air overlays cooler air, trapping pollutants near ground level | ||
| A program created by the Superfund Amendments and Reauthorization Act of 1984 that requires manufacturing facilities and waste handling and disposal sites to report annually on releases of more than 300 toxic materials | ||
| Organic chemicals that evaporate readily and exist as gases in the air |
