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Pollution may be cause of sky’s colored streaks in Westmoreland |

Pollution may be cause of sky’s colored streaks in Westmoreland

| Tuesday, September 23, 2014 3:51 p.m

Colored streaks across the sky in various parts of Westmoreland County Tuesday morning may have been the result of pollution trapped in the atmosphere, according to the National Weather Service in Moon.

Callers to the Tribune-Review newsroom reported seeing miles-long orange or brown streaks across the sky in the Mt. Pleasant and Scottdale areas.

A stable atmosphere may have led to exhaust, possibly from trucks or buildings, hanging in the air. Warm air hanging above cooler air, defined as an inversion, can sometimes lead to pollution being trapped underneath the warm air, according to the weather service.

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