Potentially Dangerous Air Quality Thursday In Philadelphia Area: PA DEP

PHILADELPHIA — State environmental officials said Thursday's air quality in the Philadelphia region could be dangerous to some people due to high levels of ozone.

The Pennsylvania Department of Environmental Protection said Thursday is an air quality action day.

Officials said the day's ozone levels will reach the code orange range, meaning the air could be unhealthy to sensitive groups.

Young children, the elderly, and those with respiratory problems — such as asthma, emphysema, and bronchitis — are especially vulnerable to the effects of air pollution and should limit outdoor activities Wednesday, the department said.

Officials said rapid ozone development is expected in the late morning and afternoon.

Peak concentrations may reach code orange levels with mostly sunny skies, light southwest winds, and temperatures close to 90 degrees.

Friday, officials said, is likely going to be a code yellow day for ozone and particulate pollution.

High moderate ozone levels are likely Friday, with continued moderate particle pollution as low level smoke persists to some degree, officials said. Highs will reach the upper 80s, with a late day or evening thunderstorm possible.

The public is encouraged to help reduce ozone pollution by

• Driving less by carpooling or using public transportation;
• Combining errands to reduce vehicle trips;
• Limiting engine idling;
• Refueling cars and trucks after dusk; and
• Conserving electricity by setting air conditioning to a higher temperature and turning off lights that are not in use.

Reducing fine particulate matter (PM-2.5) pollution in the air can be aided by:

• Limiting or eliminating fireplace and wood stove use;
• Avoiding the open burning of leaves, trash, and other materials; and
• Avoiding the use of gas-powered lawn and garden equipment.