Air Quality

Air Quality

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Poor air quality caused by pollution can have significant adverse effects upon human health and ecosystems. Pollutants can come in the form of solid particles, liquid droplets, or gases. They may come from natural sources (such as volcanic eruptions) or man-made, such as power generation, transport, and manufacturing processes. In cities around the Severn Estuary, air quality monitoring stations record any changes in pollutants over time. The main pollutants which affect air quality include sulphur dioxides, nitrogen oxides, particulate matter, carbon monoxide and Volatile Organic Compounds (VOCs).

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