South Broadway and Hurck, St. Louis
Site Operator: Missouri Department of Natural Resources' Environmental Services Program.
Pollutants Monitored: Inhalable Particulate (PM2.5)
Updated: Within 90 days after the end of a quarter.
National Ambient Air Quality Standard: (24-hour samples; one taken every third day) A three-year average of the 98th percentile 24-hour averages equal or greater than 35 ug/m3 (micrograms per cubic meter) and/or a three-year average of annual averages equal or greater than 15.0 ug/m3 (micrograms per cubic meter).
Exceedances allowed without a violation being recorded: Two percent of daily observations
Disclaimer: Yearly and quarterly data shown below has been subject to data review and validation procedures by the reporting agency.
|1999||not available||not available||not available|
|This site came under the control of Missouri Department of Natural Resources on September 1, 2011.|
|Data from 2012 on is collected from a continiously operated TEOM DF.|