Pollution of air

Get a Full Overview of Your Market. Its effects can range from higher disease risks to rising temperatures. What is air pollution caused by? It is typically separated into two categories: outdoor air pollution and indoor air pollution. Outdoor air pollution involves exposures that take place outside of the built environment.

Air pollution is a mixture of natural and man-made substances in the air we breathe.

The Clean Air Act authorizes the U. Environmental Protection Agency (EPA) to protect public health by regulating the emissions of these harmful air pollutants. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. Most often, it is caused by human activities such as mining , construction , transportation , industrial work , agriculture , smelting , etc. In the interactive map we show death rates from air pollution across the worl measured as the number of deaths per 100people of a given country or region.

Today, pollution levels in many areas of the United States exceed national air quality standards for at least one of the six common pollutants : Although levels of particle pollution and ground-level ozone pollution are substantially lower than in the past, levels are unhealthy in numerous areas of the country. Both pollutants are the result of emissions from diverse sources, and travel long distances and across state lines. Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

Another common type of air pollution is dangerous gases , such as sulfur dioxide , carbon monoxide , nitrogen oxides and chemical vapors. These can take part in further chemical reactions once they are in the atmosphere, creating acid rain and smog. Other sources of air pollution can come from within buildings,.

Shop well made posters by independent artists. Ambient air pollution accounts for an estimated 4. Around of the world’s population live in places where air quality levels exceed WHO limits. Therefore, air pollution means the undesirable presence of impurities or the abnormal rise in the proportion of some constituents of the atmosphere. It can be classified in sections: visible and invisible air pollution. It occurs when the harmful substances such as foreign gases, odour, dust, or fumes are present in the air at levels that can harm the comfort and health of animals and humans or even destroy plant life.

The condition in which air is contaminated by foreign substances, or the substances themselves. Point source pollution is when the air pollutants come from a single source of origin, such as smokestacks at a single factory. Non-point source pollution is when the air pollutants come from many sources, such as all of the cars in the U. Just like not all sources of pollution are the same,. The major kinds of pollution are usually classified by environment and include air , water, and land pollution. Learn more about the history of pollution.

Fossil fuel and coal are the main contributors to air pollution. Therefore, opting for alternative or renewable energy sources to produce power presents a practical solution to air pollution. Alternative energy sources include wind energy, geothermal energy, solar energy, and hydro-power.

Fetuses, newborn children, and people with chronic illnesses are especially susceptible to the effects of air pollutants.