New reactor system yields green ammonia and purified water

Ammonia plays a critical role in sustaining food production for the world's growing population, but making it accounts for about 2% of global energy consumption and 1.4% of carbon dioxide emissions. Rice University engineers ...

Green warriors: Plants on the frontline against microplastics

With escalating concerns about the enduring impact of plastic waste, phytoremediation emerges as a promising solution. This method utilizes plants to capture and degrade pollutants, providing an environmentally friendly and ...

New images reveal global air quality trends

The global concentrations of one of the main air pollutants known to affect human health has been graphically illustrated for the first time by a team of scientists.

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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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