CHEMISTRY

media type="youtube" key="UcWpkWBX04E" height="344" width="425" Chemistry What are the internationals air qualities Standard? The Clean Air Act established two types of national air quality standards: **//Secondary standards//** set limits to protect public welfare, including protection against decreased visibility, damage to animals, crops, vegetation, and buildings.
 * [|National Ambient Air Quality Standards] ** pollutants considered harmful to public health and the environment.
 * // Primary standards //** set limits to protect public health, including the health of sensitive populations such as asthmatics, children, and the elderly.

What are the consequences of pollution in air? I think that is very bad cause it damage the crops that animals eat and such all of us have to eat can be infected. Pollutants: Generally, any substance introduced into the environment that adversely affects the usefulness of a resource or the health of humans, animals, or ecosystems.. Some pollutants:
 * Aerosols**
 * Mercury**
 * Asbestos**
 * Nitrogen Oxides**
 * Carbon Monoxide**
 * Chlorofluorocarbons**
 * Radiation**
 * Sulphur** **Dioxide**

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