Pollutant - Wikipedia
WebA pollutant or novel entity is a substance or energy introduced into the environment that has undesired effects, 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 ).
Pollution - National Geographic Society
WebMar 6, 2024 · Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.
Air quality, energy and health - World Health Organization (WHO)
WebPollutants with the strongest evidence for public health concern include particulate matter (PM), carbon monoxide (CO), ozone (O 3 ), nitrogen dioxide (NO 2) and sulfur dioxide (SO 2 ). Health problems can occur as a result of both short- and long-term exposure to these various pollutants.
Air Pollution: Everything You Need to Know - NRDC
WebOct 31, 2023 · What is air pollution? Air pollution refers to the release of pollutants into the air—pollutants that are detrimental to human health and the planet as a...
Pollution | Definition, History, Types, & Facts | Britannica
WebMar 30, 2024 · pollution, the addition of any substance ( solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a rate faster than it can be dispersed, diluted, decomposed, recycled, or stored in some harmless form.
Air pollution | Effects, Causes, Definition, & Facts | Britannica
WebApr 23, 2024 · Air pollution, release into the atmosphere of various gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the natural capacity of the environment to dissipate and dilute or absorb them. High concentrations can cause undesirable health, economic, or aesthetic effects.
Pollution - Wikipedia
WebPollution is the introduction of contaminants into the natural environment that cause adverse change. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring ...
Air pollution - Wikipedia
WebAir pollution - Wikipedia. Contents. hide. (Top) Sources of air pollution. Pollutants. Exposure. Indoor air quality. Health effects. Agricultural effects. Economic effects. Other effects. Historical disasters. Reduction and regulation. Hotspots. Cities. Projections. See also. References. Further reading. External links.
Ambient (outdoor) air pollution - World Health Organization …
WebDec 19, 2022 · Key facts. Air pollution is one of the greatest environmental risk to health. By reducing air pollution levels, countries can reduce the burden of disease from stroke, heart disease, lung cancer, and both chronic and …
Air Pollution - National Geographic Society
WebMar 6, 2024 · Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollutants in the air take many forms. They can be gases, solid particles, or liquid droplets. Sources of Air Pollution. Pollution enters the Earth's atmosphere in many different ways.
- Some results have been removed
Skip to content