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Studies have found that so-called forever chemicals have been detected in water sources across New Mexico.
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Officials with the Prescott National Forest are requesting public comments about a plan to clean up a 15-acre abandoned mine site near Crown King.
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Arizona legislative leaders and the state Chamber of Commerce are suing the Biden administration over newly announced air-quality standards.
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The Environmental Protection Agency had added a remote area on the Navajo Nation in northwestern Arizona to its Superfund National Priorities List.
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A recent report from the American Lung Association shows seven out of 10 people say they have already seen climate change impact the Southwest and they want state policymakers to do more to combat the issue.
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The Environmental Protection Agency has finalized a plan for the cleanup of a Superfund site near Dewey-Humboldt.
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The Environmental Protection Agency has finalized a plan to cleanup a Superfund mine site on the Tohono O’odham Nation that's contaminated the tribe's drinking water with uranium and other pollutants.
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Twenty-two attorneys general want a federal court to reject a proposed $10.3 billion settlement over contamination of U.S. public drinking water systems with PFAS chemicals.
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Grand Canyon National Park’s aging buses will soon be replaced with a new electric and compressed natural gas fleet thanks to a $27 million federal infrastructure grant.
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The American Lung Association says Phoenix is fifth worst city in the nation for ozone pollution.