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Established by the United States Environmental Protection Agency (EPA) under authority of the Clean Air Act (42 U.S.C. 7401 et seq.), NAAQS is applied for outdoor air throughout the country. [2] The six criteria air pollutants (CAP), or criteria pollutants, for which limits are set in the NAAQS are ozone (O 3), atmospheric particulate matter ...
burning of traditional biomass such as wood, crop waste and dung. (In developing and poor countries, [24] traditional biomass burning is the major source of air pollutants. [25] [26] It is also the main source of particulate pollution in many developed areas including the UK & New South Wales. [27] [28]
The standards for determining whether an area is in "attainment" (compliance) or "non-attainment" (non-compliance) for six major pollutants are the National Ambient Air Quality Standards (NAAQS). These are required by law to be reviewed every five years, as new scientific information becomes available on the health and property impacts of ...
About 1 of every 25 deaths in the U.S. occurs prematurely because of exposure to air pollution. Dirty air kills roughly 110,000 Americans yearly, which is more than all transportation accidents ...
The Air Quality Index (AQI) — which measures the concentration of pollutants in the air — seemed to confirm all was well in the L.A. atmosphere, with low numbers that suggested clean, healthy air.
The National Ambient Air Quality Standards (NAAQS) govern how much ground-level ozone (O 3), carbon monoxide (CO), particulate matter (PM 10, PM 2.5), lead (Pb), sulfur dioxide (SO 2), and nitrogen dioxide (NO 2) are allowed in the outdoor air. [6] The NAAQS set the acceptable levels of certain air pollutants in the ambient air in the United ...
All sorts of things can affect the air quality in your home, from burning candles and smoke and gas from cooking to specific types of air fresheners. Some of the worst pollutants include packaging ...
The six criteria pollutants in particular are tracked due to their known harmful effects on human health and the environment. [1] An area with outdoor air exceeding the limit for a given pollutant is considered a non-attainment area for that pollutant. An area may be a non-attainment area for one pollutant and an "attainment area" for others.