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Ground-level ozone arises when emissions from vehicles, power plants and other sources react to sunlight.
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State regulators were able to show that because of people buying new cars, emission levels will keep dropping even without testing to document it.
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Ozone pollution in St. Louis has slightly improved, according to the 2018 State of the Air report released this month by the American Lung Association.…
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The Missouri Department of Natural Resources proposes spending the $41 million it received from the Volkswagen settlement last year on replacing school…
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A report released Monday finds that two power plants in Arkansas are partly responsible for poor air quality in St. Louis. Scientists from…
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The St. Louis metro area has one of the worst smog levels in the country. In recent years, ozone levels have declined, but the region must comply with…
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There's good ozone and there's bad ozone. The good kind sits up high up in the stratosphere, protecting us from the sun's ultraviolet rays. The bad kind…
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Since last fall, when the Environmental Protection Agency announced plans for an administrative rule to tighten standards on “ground-level ozone,” better…
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Sen. Roy Blunt, R-Mo., and Missouri business leaders, oppose what some have labeled as the Obama administration’s “most expensive regulation ever.” The…
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Cutting carbon dioxide emissions from power plants would also reduce other types of air pollution, both here in Missouri and nationally.That's according…