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Archive by tag: ambient airReturn
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Wildfire smoke contributes to air quality exceedances in May

Wildfire smoke contributes to air quality exceedances in May

  • 6/1/2023 4:11:00 PM
  • View Count 2460
Des Moines, IA – The Air Quality Bureau has recorded 33 exceedances of the National Ambient Air Quality Standards (NAAQS) over the last 14 days. Smoke from wildfires in Northern Canada contributed to 32 ozone exceedances and one fine particulate matter (PM2.5) exceedance between May 18th and May 31st. Iowa has averaged less than four ozone exceedances per year over the last five years. These exceedances are the first of the NAAQS measured in Iowa this year.
Wildfire smoke caused air quality exceedances

Wildfire smoke caused air quality exceedances

  • 9/2/2021 2:38:00 PM
  • View Count 1678
DES MOINES - Several Iowa monitoring sites recorded exceedances of the National Ambient Air Quality Standard for fine particulate matter last month, including two measurements that were more than twice the national standard.