Hubble captures dense globular cluster NGC 1841

This densely populated group of stars is the globular cluster NGC 1841, which is part of the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way galaxy that lies about 162,000 light-years away. Satellite galaxies ...

How air pollution can harm team performance

High levels of air pollution can harm the performance of teams, which are vital for solving complex problems such as developing clean energy technologies and vaccines, and this could harm economic development in highly polluted ...

Plastic pellets blight Belgian town as EU weighs action

Buried in the soil, dotting riverbanks and bobbing along streams: a small Belgian town has waged a years-long fight against creeping pollution from plastic pellets—which the EU now has in its sights.

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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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