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Criteria Pollutants    At a Glance    In Depth
Nitrogen Dioxide
Nitrogen Dioxide

Ozone
Ozone

Carbon Monoxide
Carbon Monoxide

Sulfur Dioxide
Sulfur Dioxide

Particulate Matter
Particulate Matter

Lead
Lead

 

At a Glance

Carbon Monoxide - CO
Carbon monoxide is a poisonous, invisible gas released from exhaust pipes when gasoline burns.

Source
Over 80% of CO comes from cars and other vehicles.

How It Hurts
Carbon monoxide prevents our blood from delivering oxygen to our bodies. Small amounts cause headaches. Large amounts in closed spaces can suffocate and kill us.

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CO attacks the blood and brain
CO attacks the blood and the brain
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