Air Pollution: What are the effects on humans?

Air pollution encompasses everything from combustion gases to very fine particles resulting from brake pad damage, wear on roads, construction sites and dust in general. ,

Research has shown that gases such as nitrogen dioxide and tiny particles, called particles or particles, can penetrate deep into the body with the risk of permanent damage.

The most obvious effects affect our breathing: they increase the risk of asthma attacks and pneumonia.

BBC science editor David Shukman explains how air pollution is also related to strokes, lung cancer, heart disease and possibly dementia.

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