Pershall Road, Ferguson
Site Operator: St. Louis County Department of Health, Air Pollution Monitoring Program
Pollutants Monitored: Inhalable Particulate (PM10)
Updated: Within 90 days after the end of a quarter.
National Ambient Air Quality Standard: (24-hour samples; one taken every sixth day) A 24-hour average of 150 ug/m3 (micrograms per cubic meter) and/or an annual average of 50 ug/m 3 (micrograms per cubic meter).
Exceedances allowed without a violation being recorded: None.
Disclaimer: Yearly and quarterly data shown below has been subject to data review and validation procedures by the reporting agency. Monthly data and data shown graphically is raw, unreviewed and unvalidated data.
|(1999 Instrument removed from site)|
|(2001 Instrument reinstalled third quarter)|
|Site shut down in September 2008|