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air pollution
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air pollution in Mexico City air pollution in Gurgaon, India
How is air quality measured?
The video thumbnail image shows a person's hand holding small fragments of colorful plastic.
Automobile emissions SO2 and NOx emissions in the U.S. ozone damage on leaf Bhopal, India: pesticide plant air pollution greenhouse effect on Earth
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Photos and Videos

air pollution in Mexico City
air pollution in Gurgaon, India
Automobile emissions
SO2 and NOx emissions in the U.S.
ozone damage on leaf
Bhopal, India: pesticide plant
air pollution
greenhouse effect on Earth
Great Smog of London
ozone depletion
How is air quality measured?
The video thumbnail image shows a person's hand holding small fragments of colorful plastic.
Major types of pollution explained
Learn how pollution from industrial emissions and car exhaust is trapped against mountains to cause smog
Visit Germany's Black Forest to study the effects of industrial emissions, urban smog, and acid rain
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