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Criteria Pollutants
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![]() Nitrogen Dioxide |
![]() ![]() Pollution Sources and Criteria Pollutants
What are criteria pollutants? Scientists have established specific levels of each of 6 common air pollutants which are dangerous to our health and welfare.
What are they, where do they come from, and what do they do to us and our environment? Click on a molecule to the left to see the criteria pollutants at a glance!
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