Ozone 'Hole' Recedes, but Danger Lingers
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The worst of the ozone hole has pulled back once more to Antarctica this southern spring, leaving behind a shadow of uncertainty for the people living at the bottom of the Americas.
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Scientists at the U.S. Environmental Protection Agency on Tuesday recommended tougher standards for ground-level ozone, the main component of smog, but no action will be taken until next year.
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U.S. scientists say they have made a discovery that could help public health officials know instantly when pollution moves into the coastal ocean.
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For the second time in three years, a hypoxic "dead zone" has formed off the central Oregon Coast. It's killing fish, crabs and other marine life and leading researchers to believe that a fundamental change may be taking place in ocean conditions in the northern Pacific Ocean.
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The Environmental Protection Agency offered tighter standards for ozone pollution for the first time since 1997 but critics said on Thursday the proposal is more lax than what the EPA's own experts recommended.
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Air quality in the Los Angeles basin this year has been the best in 25 years, largely because of a fluke in the weather. But by virtually all measures, the region, the
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Far away, off the coast of South America, the waters of the Pacific Ocean are cooling ominously. In the Atlantic, the sea surface remains warm. And overhead, the atmosphere is evolving toward what forecasters said yesterday could be a dangerous hurricane season.
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WASHINGTON -- The average level of a deadly form of air pollution dropped in the United States from 1999 to 2003 as new pollution controls made strides in battling the nation&#39;s air quality problem, the Environmental Protection Agency said Tuesday.
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Cincinnati didn&#39;t fare well in a new study that looks at the effect of ground-level ozone on the death rate. The study, published Wednesday in the Journal of the American Medical Association, suggests that
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LOS ANGELES A new Environmental Protection Agency report says concentrations of dangerous air pollutants have declined in Southern California in the last five years.
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The Environmental Protection Agency today proposed reducing allowable ozone air pollution by as much as 20 percent in coming decades, setting up a battle with business and industry groups who feel current standards are adequate.
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By Nisha Sabanayagam; Ranjeetha Pakiam; Minderjeet Kaur; Teresa Yong;  THE tipping point is very close.   Environmentalists warn that once past it, our countrys environmental deterioration will lead to irreversible consequences.  It may already have happened.
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Memphis didn't have a day of excessive air pollution during the seven-month ozone season for the first time in seven years.
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By Tony Davis, The Arizona Daily Star, Tucson  Jun. 22--Pima County's air could be out of compliance with federal limits  in a few years because of a new federal proposal to tighten up regulations  protecting the air from the primary ingredient in smog.
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Scientists say the coming weeks could see the most severe thinning of the ozone layer over northern Europe since records began.
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When ozone goes up in cities, even for short periods at levels below current regulatory standards, so does the death rate, according to an article in Wednesday's Journal of the American Medical Association.
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By Scott Streater, Fort Worth Star-Telegram, Texas  May 26--The federal Environmental Protection Agency continues to press the state over last-minute changes that appear to weaken an ozone clean-up for Dallas-Fort Worth.