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Individual reactions to air pollutants depend on the type of pollutant a person is exposed to, the degree of exposure, and the individual's health status and genetics. [102] The most common sources of air pollution include particulates and ozone (often from burning fossil fuels), [122] nitrogen dioxide, and sulfur dioxide. Children aged less ...
A pollutant or novel entity [1] is a substance or energy introduced into the environment that has undesired effect, or adversely affects the usefulness of a resource. These can be both naturally forming (i.e. minerals or extracted compounds like oil) or anthropogenic in origin (i.e. manufactured materials or byproducts).
Arsenic is a naturally occurring element and can be found in food, water, or air. There are also industrial sources of arsenic, including mining and smelting. [ 8 ] " People are exposed to elevated levels of inorganic arsenic through drinking contaminated water, using contaminated water in food preparation and irrigation of food crops ...
The six criteria air pollutants were the first set of pollutants recognized by the United States Environmental Protection Agency as needing standards on a national level. [5] The Clean Air Act requires the EPA to set US National Ambient Air Quality Standards (NAAQS) for the six CAPs. [6]
Story at a glance Common air pollutants ozone and fine particulate matter are associated with nonviral asthma attacks among U.S. youth living in dense, low-income urban areas, new research shows.
Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.
Here’s how Iowa fares when it comes to air pollution. Which areas in Iowa are among the cleanest in America regarding air quality? The EPA’s Clean Air Act identifies six common air pollutants ...
In the U.S., the biggest polluters are often concentrated in underserved, mostly minority communities.
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