News tagged with polluted air

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US proposes stricter ozone limits

The US Environmental Protection Agency announced plans Wednesday to strengthen emission regulations for ozone, a smog-causing pollutant blamed for respiratory ailments affecting millions of Americans.

Nov 26, 2014
3.8 / 5 (4) 3

US to propose stricter smog standard

Coming full circle on a campaign promise, the Obama administration will propose Wednesday to reduce the amount of smog-forming pollution allowed in the air, which has been linked to asthma, lung damage and ...

Nov 26, 2014
3.7 / 5 (3) 1

Coming up for air

Sometimes you've got to hit bottom to battle your way back up. In 1992, the United Nations cited Mexico City as having the worst air quality in the world, with so much pollution that birds sometimes dropped ...

Oct 29, 2014
5 / 5 (1) 0