Denver (AP State regulators say industrial pollution is ruining the views in national parks and wilderness areas in Colorado. The State Health Department looked at eleven power plants and other industrial sites and studied three years' worth of pollution levels and weather patterns.
Regulators found that some sites reduced visibility more than 100 days over those three years. In Rocky Mountain National Park, for example, regulators say they expected the visibility to be 155 miles, but the current average is 94 miles. Some days it's down to 57 miles.
Next year, state health officials say they'll use the study to determine which plants need to add pollution controls.
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