Extreme heat and pollution brings unhealthy air today and Tuesday |
Valley News Dispatch

Extreme heat and pollution brings unhealthy air today and Tuesday

Mary Ann Thomas

The steam bath heat triggered the state Department of Environmental Protection to forecast a Code Orange air-quality alert for the region on Monday and Code Yellow for Tuesday.

Young children, the elderly and those with respiratory problems like asthma, emphysema and bronchitis should limit their time outdoors under Code Orange.

Residents who are unusually sensitive to pollution should limit time outdoors under Code Yellow.

The alert applies to Allegheny, Armstrong, Beaver, Butler, Fayette, Washington and Westmoreland counties.

On Monday, high humidity mixed with temperatures that hit 87 in Pittsburgh and 86 in Greensburg, according to Shannon Hefferan, a meteorologist with the National Weather Service in Pittsburgh.

While a cool front is forecasted for Tuesday afternoon, temperatures will dip only a tad – a mere 4 degrees, from a high of 84 to 80 degrees on Tuesday, according to Hefferan.

Ozone concentrations will drop Tuesday as the cool front brings more clouds and an increasing chance for thunderstorms, according to DEP’s air quality partnership website Monday.

Cleaner air is expected as winds shift into the west and northwest behind the cold front Wednesday, according to DEP.

The weather service forecasts temperatures in the low 80s for the remainder of the week.

Mary Ann Thomas is a Tribune-Review staff writer. You can contact Mary Ann at 724-226-4691, [email protected] or via Twitter @MaThomas_Trib.

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