News

Ozone air quality alert for midstate

Written by The Associated Press | May 30, 2013 6:10 AM
Man sweating hot

(Pittsburgh) -- The Department of Environmental Protection has issued an ozone air quality alert for much of Pennsylvania.

The DEP says the code orange alert is in effect today for the midstate, Pittsburgh, Philadelphia, Lehigh Valley, and Liberty-Clairton areas.

Under the system green represents good air quality, yellow is moderate, orange represents unhealthy pollution levels for sensitive people, and red warns of unhealthy pollution levels for everyone.

Ground-level ozone, a key component of smog, forms during warm weather when pollution from vehicles, industry, households and power plants heats up, making it hard for some people to breathe.

DEP says the elderly and those with respiratory problems such as asthma are especially vulnerable to air pollution and should limit outdoor activities.

Published in News

back to top

Post a comment

Support for witf is provided by:

Become a witf sponsor today »

witf's Public Insight Network

Real Life Real Issues

Grave 43: Remembering Pony

National Edward R. Murrow Awards

DuPont Columbia Awards

Support Local Journalism

Latest News from NPR

Support for witf is provided by:

Become a witf sponsor today »