Lack of dust makes China’s air pollution much worse

Source: BBC

air pollutionImage copyrightGETTY IMAGES
Image captionStudies suggest that the deaths of 1.6 million people a year in China are linked to air quality

Airborne dust is normally seen as an environmental problem, but the lack of it is making air pollution over China considerably worse.

A new study suggests less dust means more solar radiation hits the land surface, which reduces wind speed.

That lack of wind in turn leads to an accumulation of air pollution over heavily populated parts of China.

The researchers found that reduced dust levels cause a 13% increase in human-made pollution in the region.

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