By: KDKA-TV News Staff

PITTSBURGH (KDKA) – The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Action Day for the Liberty-Clairton area Saturday.

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A strong temperature inversion and calm wind in the morning are likely to contribute to a daily average concentration of fine particulate matter in the Code Orange range, the DEP said. The highest hourly concentrations are likely to occur between 3 a.m. and 10 a.m.

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The alert covers Clairton, Glassport, Liberty, Lincoln and Port Vue.

On an Air Quality Action Day, young children, the elderly and those with respiratory problems should limit outdoor activities.

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Residents are encouraged to reduce fireplace and wood stove use, avoid burning leaves or trash and avoid using gas-powered lawn and garden equipment.