As of 11 a.m, the average fine particle levels for the day were 70 in
Muscatine.
FOR IMMEDIATE RELEASE: April 2, 2012
AIR QUALITY ADVISORY FOR MUSCATINE COUNTY
MEDIA CONTACT: John Gering, Air Quality ambient monitoring, (515) 281-6318,
<mailto:[log in to unmask]> [log in to unmask]
Windsor Heights - Elevated fine particle pollution levels were recorded
across Iowa this morning. Fine particle levels above EPA health standards
are likely to persist in Muscatine County until early Tuesday morning, when
northwest winds and precipitation are expected to clear the air.
The Department of Natural Resources recommends that Iowans living in
Muscatine County with respiratory or heart disease, the elderly, and
children limit prolonged outdoor exertion until air quality conditions
improve.
The EPA's 24-hour health threshold for fine particles is 35 micrograms (35
millionths of a gram) per cubic meter.
As of 11 a.m, the average fine particle levels for the day were 70 in
Muscatine. Several other monitors in the state recorded elevated levels.
Fine particle levels were 33 in Emmetsburg, 29 in Des Moines, 20 in
Waterloo, 27 in Cedar Rapids, 27 in Iowa City, 33 in Davenport, 24 in
Clinton, and 29 in Lake Sugema State Park.
Fine particles are emitted by vehicle traffic and other combustion sources,
and are formed by chemical reactions in the atmosphere. Stagnant air masses
do not allow fine particles to disperse and pollutant levels rise.
EPA's national air quality map is available online at
<http://www.airnow..gov> www.airnow.gov.
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