Air pollution

Air pollution

Air pollution is the introduction of chemicals, particulates or biological materials into the atmosphere which cause damage to the natural environment and have adverse health affects on organisms.

Industry: Pollution control

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Air pollution

Cancer

Pollution control; Air pollution

A group of diseases characterised by uncontrolled invasive growth of body cells leading to the formation of malignant tumours that tend to grow rapidly and spread (i.e., metastasize).

Peroxyacytal nitrate

Pollution control; Air pollution

A group of compounds formed from the photochemical reactions of nitrogen and organic compounds. PANs are components of smog and known to cause eye irritation.

Conformity

Pollution control; Air pollution

A demonstration of whether a federally-supported activity is consistent with the State Implementation Plan (SIP) -- per Section 176 (c) of the Clean Air Act. Transportation conformity refers to ...

Office of Environmental Health Hazard Assessment (

Pollution control; Air pollution

A department within the California Environmental Protection Agency that is responsible for evaluating chemicals for adverse health impacts and establishing safe exposure levels. OEHHA also assists in ...

Health risk assessment (HRA)

Pollution control; Air pollution

A document that identifies the risks and quantities of possible adverse health effects that may result from exposure to emissions of toxic air contaminants. A health risk assessment cannot predict ...

Particulate matter (PM10)

Pollution control; Air pollution

A criteria air pollutant consisting of small particles with an aerodynamic diameter less than or equal to a nominal 10 microns (about 1/7 the diameter of a single human hair). Their small size allows ...

Designation value

Pollution control; Air pollution

The pollutant concentration used by air quality managers for designating attainment status of an air district with respect to the state and federal ambient air quality standards. Generally, the ...