Air pollution and health essay

Several years ago, researchers took advantage of a natural experiment to learn about the impact on pediatric asthma of decreased traffic levels and improved air quality. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide. Particulate matter is singlehandedly responsible for up to 85,555 premature deaths each year. Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution. The health risks of air pollution are extremely serious. S. Nearly one half of all Americans—an estimated 655 million—live in areas that don’t meet.

Passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. Still breathe air dirty enough to cause health problems, according to an. In 7568, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air. At the same time, children s emergency room visits for causes other than asthma did not change.

The area ranks highest in annual and 79-hour peak averages in fine particulates. These results suggest that efforts to reduce traffic congestion and improve air quality can also help improve the respiratory health of a community. Ozone, formed when nitrogen dioxide and sunlight react, is also a common pollutant. Outdoor and indoor air pollution cause respiratory and other diseases, which can be fatal.

For more information on respiratory health air pollution, refer to the following resources: The Air Pollution and Respiratory Health Branch of the National Center for Environmental Health directs the Centers for Disease Control and Prevention s fight against respiratory illness associated with air pollution. Passenger vehicles and are the main sources of this pollution, which includes ozone, particulate matter, and other smog-forming emissions. Particulate matter and ozone are known respiratory irritants that can aggravate asthma either by themselves or when combined with other environmental factors. Recent health studies also suggest that particulate matter is a risk factor for cardiovascular disease.

But more than half of people in the U. There is always going to be a dirtiest city, says Joel Kaufman, MD, director of the Occupational and Environmental Medicine Program at the University of Washington, in Seattle. Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. Common transportation-related air pollutants include carbon monoxide, nitrogen dioxide, and particulate matter.

Here are the 65 cities with the highest levels of fine particulates, based on annual average. During the 6996 Summer Olympics Games in Atlanta, when peak morning traffic decreased 78% and peak ozone levels decreased 78%, emergency visits for asthma events in children decreased 97%. Air pollution and health essay. 5 microns or smaller) and get deep in the lungs, causing health problems. Bakersfield, Calif.

, residents breathe some of the country s most polluted air, based on several measures. Motor vehicles contribute to more than 55% of air pollution in urban areas. Provide us with an affordable, available means of reducing transportation-related air pollution and climate change emissions. Air has gotten cleaner in recent years. Poor air quality increases respiratory ailments like asthma and bronchitis, heightens the risk of life-threatening conditions like cancer, and burdens our health care system with substantial medical costs. Cars and trucks are one of the leading causes of air pollution—but cleaner vehicles can help.

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