WINDSOR HEIGHTS – Fine particulate levels near or above the EPA threshold are possible today in Scott County. Of concern are particulates 10 microns (PM10) in size & smaller.
The Department of Natural Resources recommends that Iowans living in this area 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 PM10 is 150 micrograms per cubic meter (μg/m3).
PM10 spiked on Friday and have continued to remain high. The current average level as of 10:00 am is 189.56 μg/m3. PM10 is created via combustion such as engines, open burning, woodstoves, power plants and crushing of non-metals such as stone.
Air quality conditions should improve over the next day or so as a band of rain pushes through Eastern Iowa and is followed by a change in wind direction to the west and northwest.
EPA’s national air quality map is available online at www.airnow.gov