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World Health Organization revises air quality guidance to target hazardous emissions

Name: World Health Organization revises air quality guidance to target hazardous emissions
Uploaded: 2021-09-23T16:00:00-0400
Duration: 1 min 43 s
Description: The World Health Organization tightened its global air quality guidelines in its first revision since 2005. The organization said air pollution is one of the "biggest environmental threats to human health." CBS News' Ian Lee reports.

The World Health Organization tightened its global air quality guidelines in its first revision since 2005. The organization said air pollution is one of the "biggest environmental threats to human health." CBS News' Ian Lee reports.