air pollution introduction
How do people react to air pollution?
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. The most common sources of air pollution include particulates, ozone, nitrogen dioxide, and sulfur dioxide.
What is air pollution?
Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials.
What are the health effects of air pollution?
The health effects caused by air pollution may include difficulty in breathing, wheezing, coughing, asthma and worsening of existing respiratory and cardiac conditions. These effects can result in increased medication use, increased doctor or emergency department visits, more hospital admissions and premature death.
What are the main sources of air pollution?
Petroleum fuels are another source of air pollution, whether they’re burned at industrial facilities or, more commonly, to propel cars, trucks, and other vehicles.
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