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Sulfur Dioxide Data Requirements Rule Report Available for Public Review and Comment

Sulfur Dioxide Data Requirements Rule Report Available for Public Review and Comment

  • 5/17/2022 8:47:00 AM
  • View Count 933
The DNR invites the public to provide comments on the 2022 report for the sulfur dioxide (SO2) Data Requirements Rule (DRR). The DRR requires an annual assessment of recent SO2 emissions in any area where air quality modeling of actual emissions provided the basis for designating the area attainment for the 2010 1-hour SO2 national ambient air quality standard (NAAQS).
Personal air sensors—adding to our knowledge

Personal air sensors—adding to our knowledge

  • 5/5/2022 8:19:00 AM
  • View Count 960
DES MOINES—As personal air sensors become more popular it’s important to understand their usefulness and their limitations. Air sensors are lower-cost, portable devices that measure air quality.
Low cost air sensors—adding to our knowledge

Low cost air sensors—adding to our knowledge

  • 5/6/2021 10:35:00 AM
  • View Count 1494
DES MOINES—As part of a nationwide effort involving 16 states, DNR and other Iowa air agencies collected data used to improve results from popular personal air quality sensors.
Popular fish survey data returns to Iowa DNR webpage

Popular fish survey data returns to Iowa DNR webpage

  • 5/4/2021 2:38:00 PM
  • View Count 2098
Iowa anglers can once again access fish survey data collected by Iowa Department of Natural Resources (DNR) fisheries staff during electroshocking and netting surveys on lakes, rivers and streams.
Sulfur Dioxide Data Requirements Rule Report Available for Public Review and Comment

Sulfur Dioxide Data Requirements Rule Report Available for Public Review and Comment

  • 5/17/2018 8:28:00 AM
  • View Count 2792
The DNR is evaluating recent changes in sulfur dioxide (SO2) emissions in Des Moines and Wapello Counties in the second annual report required by the federal SO2 Data Requirements Rule (DRR). The DRR requires an annual assessment of recent SO2 emissions in any area where air quality modeling of actual emissions provided the basis for designating the area attainment for the 2010 1-hour SO2 national ambient air quality standard (NAAQS).
Dispersion Modeling Data and Guidance Updates Available for Use

Dispersion Modeling Data and Guidance Updates Available for Use

  • 12/4/2015 9:28:00 AM
  • View Count 4007
The DNR has updated the pre-processed meteorological data for AERMOD, the default background concentrations, and various guidance documents. Projects with approved protocols that include approval to use the old data, and modeling analyses submitted prior to December 4, 2015, will not have to use the new data. Applicants submitting new projects on or after December 4 should begin using the updated data and guidance immediately. The updates are summarized below.