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From: Press Releases from the Iowa Department of Natural Resources [[log in to unmask]]
Sent: Wednesday, December 23, 2009 1:01 PM
To: Dana Wade
Cc: DNR CRD NRC Commissioners; DNR ESD EPC Commissioners
Subject: News Release: Air Quality Improves with Blustery Winter Weather

[cid:image001.jpg@01CA8303.BC7B53E0]


FOR IMMEDIATE RELEASE: December 23, 2009

BLUSTERY WEATHER IMPROVES AIR QUALITY

MEDIA CONTACT: Todd Russell at (515) 281-8437

Windsor Heights – An advancing winter storm has produced higher winds improving air quality across the State.

Today average levels at Garfield School in Muscatine were 23 micrograms per cubic meter through the 9 o’clock hour and going down. The EPA’s 24-hour health threshold for fine particles is 35 micrograms per cubic meter.  Yesterday, a 24-hour average of 59 micrograms per cubic meter was recorded at Garfield School in Muscatine.  At these levels, asthmatics, the elderly and children may experience breathing difficulties.

Fine particles are emitted by vehicle traffic and other combustion sources and are also formed by chemical reactions in the atmosphere.  Stagnant air masses do not allow the fine particles to disperse, and pollutant levels rise.

EPA’s national air quality map is available online at www.airnow.gov<http://www.airnow.gov>.


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