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Why do air pollution levels tend to drop after it rains?

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I've wondered about this question a lot too because sometimes the skies are gloriously blue here in Beijing after a rain. I read up on some studies of rain and air pollution, and my conclusions from that research are: 1. read more

I’ve wondered about this question a lot too because sometimes the skies are gloriously blue here in Beijing after a rain. I read up on some studies of rain and air pollution, and my conclusions from that research are: 1. read more

Plus, low pressure systems (what usually causes rain) will have pollution forming in front of the system and once the system passes through it will take the air pollution with it. And the high pressure system that comes will have less pollution (typically). read more

Encyclopedia Research

Wikipedia:

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Does rain decrease air pollution? - Quora
Source: quora.com

Further Research

Why does it rain?
www.metoffice.gov.uk

Why does the air smell after it rains?
www.thenakedscientists.com