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The 17 “class 1” federal areas in the Southwest that are supposed to benefit from cleaner air under new emissions limits from the EPA include 12 areas in Arizona. (Map courtesy the U.S. Environmental Protection Agency)

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Clarkdale's cement plant among 6 ordered to cut emissions over parks, wildernesses

The Environmental Protection Agency set new limits Wednesday on emissions from six Arizona industrial facilities in order to reduce haze at 17 national parks and wilderness areas, including the Grand Canyon.

Tease photo

Clarkdale's cement plant among 6 ordered to cut emissions over parks, wildernesses

The Environmental Protection Agency set new limits Wednesday on emissions from six Arizona industrial facilities in order to reduce haze at 17 national parks and wilderness areas, including the Grand Canyon.