Air quality guideline

Air Quality Guideline

The Air Quality Guideline (pronunciation: /ɛər kwɒlɪti ɡaɪdlaɪn/) is a set of standards established by health and environmental organizations to protect human health and the environment from the harmful effects of air pollution.

Etymology

The term "Air Quality Guideline" is derived from the English words "air", "quality", and "guideline". "Air" comes from the Old English ǣr, "quality" from the Latin qualitas, and "guideline" from the Old Norse gíða (to guide) and Old English līne (line).

Definition

The Air Quality Guideline is a benchmark or standard that specifies the maximum allowable concentrations of pollutants in the air. These guidelines are typically set by national or international health and environmental organizations, such as the World Health Organization (WHO) and the United States Environmental Protection Agency (EPA).

Related Terms

• Air Pollution: The introduction of harmful substances into the Earth's atmosphere, which can have detrimental effects on human health and the environment.
• Particulate Matter (PM): Tiny particles or droplets in the air that can be inhaled and cause health problems.
• Ozone (O3): A gas that occurs both in the Earth's upper atmosphere and at ground level. It can be good or bad for health and the environment, depending on its location in the atmosphere.
• Nitrogen Dioxide (NO2): A gas that contributes to the formation of smog and acid rain. It is harmful to human health and the environment.
• Sulfur Dioxide (SO2): A gas that can harm human health and the environment, and contributes to the formation of acid rain.

See Also

• Air Quality Index
• Air Quality Standards
• Environmental Protection Agency
• World Health Organization

External links

• Medical encyclopedia article on Air quality guideline
• Wikipedia's article - Air quality guideline

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