The U.S. Environmental Protection Agency had outlined a final plan for upgrades at three Arizona coal-fired power plants.
The agency on Friday followed through with a proposal to partially reject Arizona's air quality plan. It came up with one of its own for nitrogen oxide emissions that impair visibility at 18 national parks and wilderness areas.
Instead of sticking with technology such as low nitrogen-oxide burners, the Cholla, Coronado and Apache generating stations likely will have to install selective catalytic reduction technology to further reduce the emissions by 22,700 tons per year.
The state Department of Environmental Quality was quick to denounce the EPA's decision, saying Arizona has a right to control pollutants within its borders. The department says visibility improvements from more than $500 million in upgrades will be imperceptible.
Copyright 2012 Associated Press. All rights reserved.
Friday, May 24 2013 11:34 PM EDT2013-05-25 03:34:36 GMT
LOUISVILLE, KY (WAVE) – Friday afternoon two home invasions are reported to police less than an hour apart. Police are trying to determine if the same group of people are responsible. The first robberyMore >>
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Friday, May 24 2013 11:19 PM EDT2013-05-25 03:19:49 GMT
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Friday, May 24 2013 9:56 PM EDT2013-05-25 01:56:14 GMT
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Friday, May 24 2013 8:36 PM EDT2013-05-25 00:36:30 GMT
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A major drug bust unfolded Friday in a quiet Jeffersonville neighborhood not far from an elementary school. It happened around 2 p.m. at a home in the 3100 block of Clearstream Way.More >>
Saturday, May 25 2013 8:07 AM EDT2013-05-25 12:07:57 GMT
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Shannon Gales' 2-year-old daughter was strapped in a car seat inside the vehicle when it overturned, according to Kentucky State Police. More >>