Our water cycle diagrams give a false sense of water security

Pictures of the earth's water cycle used in education and research throughout the world are in urgent need of updating to show the effects of human interference, according to new analysis by an international team of hydrology ...

How machine learning can help regulators

How to locate potentially polluting animal farms has long been a problem for environmental regulators. Now, Stanford scholars show how a map-reading algorithm could help regulators identify facilities more efficiently than ...

New study finds microplastic throughout Monterey Bay

Many people have heard of the "Great Pacific Garbage Patch," a vast area of ocean between California and Hawaii where ocean currents concentrate plastic pollution. However, it turns out there may also be a lot of plastic ...

Severe air pollution can cause birth defects, deaths

In a comprehensive study, researchers from Texas A&M University have determined that harmful particulate matter in the atmosphere can produce birth defects and even fatalities during pregnancy using the animal model.

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Pollutant

A pollutant is a waste material that pollutes air, water or soil, and is the cause of pollution.

Three factors determine the severity of a pollutant: its chemical nature, its concentration and its persistence. Some pollutants are biodegradable and therefore will not persist in the environment in the long term. However the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from degradation of DDT

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