Air pollution cuts 3 years off Chinese lifespans. There are currently an estimated 4.5 billion people around the world exposed to levels of particulate air pollution that are at least twice what the World Health Organization (WHO) considers safe

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Air pollution cuts 3 years off Chinese lifespans. There are currently an estimated 4.5 billion people around the world exposed to levels of particulate air pollution that are at least twice what the World Health Organization (WHO) considers safe