air pollution

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Related to Air toxic: hazardous air pollutants

air pol·lu·tion

contamination of air by smoke and harmful gases, mainly oxides of carbon, sulfur, and nitrogen, as from automobile exhausts, industrial emissions, or burning rubbish.
See also: smog.

air pollution

The presence in the air of substances suh as carbon monoxide (CO), NO2, ozone, particulate matter, and SO2, which are byproducts of human activities, and which have an adverse effect on health. Fine (diameter ≤2.5 µm) particles are derived primarily from the combustion of fossil fuels in transportation, manufacturing, and power generation, and are mixed with soot, acid condensates, nitrate and sulfate particles, and may pose a greater risk to health as they are generally more toxic and can be inhaled deeply into the lungs; there is a significant association between fine particulate air pollution and deaths from cardiopulmonary disease, lung cancer, and other causes.
Health effects of air pollution Respiratory complaints, restricted activity, chest discomfort, sore throats, eye irritation; CO and ozone are linked to heart malformations and heart valve defects.

air pol·lu·tion

(ār pŏ-lū'shŭn)
Contamination of air by smoke, particulate matter, and harmful gases, mainly oxides of carbon, sulfur, and nitrogen, as from automobile exhausts, industrial emissions, and burning rubbish.
See also: smog

air pollution

the presence of contaminants in the form of dust, fumes, gases or other chemicals in the atmosphere in quantities which adversely affect living organisms. See ACID RAIN.

Patient discussion about air pollution

Q. where would i find list of all the "clean" cities and the rates of air pollution ...?

A. i don't know about a list of "good" cities, but i know a list of the worse cities for Asthmatic people!-
http://www.webmd.com/asthma/news/20050215/americas-worst-asthma-cities

More discussions about air pollution
References in periodicals archive ?
We found some evidence that measured air toxics acted as copollutant confounders, so that when they were included as adjustment factors in two-pollutant models, the odds ratio for the other air toxic was attenuated (Table 3).
Although the air toxic emission standards potentially present a best case for studying productive relations between agencies and courts with regard to advancing the public interest, the HAPs rules are also relatively typical examples of pollution control standards and thus should extrapolate well to other rulemaking settings.
The agency also said it expects owners or operators of existing rich-burn engines, burning natural gas, gasoline or other fuels, to install a nonselective catalytic reduction device to meet the proposed limits on air toxics emissions.
The air toxics indicator was risk ratios (relative risks) summed across the three chemicals; levels >1 were defined as high.
Major sources of the 189 air toxics to be regulated are those annually emitting 10 tons of one listed air toxics.
* 82% reduction in TRI air toxics since 1990, and 94% reduction in toxicity weighted hazard
The scrubber is expected to reduce Michigan City's sulfur dioxide and mercury emissions, allowing the facility to comply with the federal Environmental Protection Agency's new Mercury and Air Toxics Standards (MATS) rule.
In turn, CORMETECH products are helping operators at coal-firing plants and other industrial facilities meet their requirements under regulation such as MATS (Mercury and Air Toxics Standards), which sets the standards for allowable levels of mercury emissions.
The new plants are aimed at ensuring system reliability following the retirement of coal-fired power plants in the region in response to the US EPA Mercury and Air Toxics Standards and other environmental rules.
The problem is that if you pick up a statute book and read section 111(d), it says the EPA cannot use the section to regulate any plants that are already regulated under the agency's air toxics program.
pattern is also observed, however, for air toxics despite the large
" Air toxics are considered threatening to normal urban life, largely because of the steadily increasing vehicle density on roads and the ever increasing population.