Environmental Services Program

South Broadway and Hurck, St. Louis

Site Operator: Missouri Department of Natural Resources' Environmental Services Program.

Pollutants Monitored: Inhalable Particulate (PM2.5)


Inhalable Particulate (PM2.5)

Updated: Within 90 days after the end of a quarter.

National Ambient Air Monitoring 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.

Inhalable Particulate (PM2.5)

The units for all averages in this chart are micrograms per cubic meter.
Year First Maximum
24-Hour Average
Second Maximum
24-Hour Average
Annual
Average
1999 not available not available not available
2000 42.3 39.2 15.78
2001` 52.5 40 14.8
2002 67.2 46 15.3
2003 48.7 40.8 14.4
2004 39.5 35.0 13.09
2005 48.3 46.9 15.86
2006 35.4 33.8 13.12
2007 45.0 41.3 14.04
2008 34.2 32.1 12.54
2009 44.2 29.2 11.89
Year First Maximum
24-Hour Average
98th Percentile Annual
Average
2010 41.7 24.7 12.35
This site came under the control of Missouri Department of Natural Resources on September 1, 2011.
2011 31.2 28.5 12.50
Data from 2012 on is collected from a continiously operated TEOM DF.
2012 29.4 21.0 9.08
2013
Second Quarter 27.4 24.5 10.57

Photograph of the South Broadway Monitoring Site


Inactive Pollutants


 

Sulfur Dioxide (SO2)

Updated:Only historic data is shown. Instrument was shut down in 2010

National Ambient Air Monitoring Standard: A three-hour average of 0.50 ppm (parts per million) and/or a 24-hour average of 0.14 ppm (parts per million) and/or an annual average of 0.03 ppm (parts per million). Data reported in three decimal places must be rounded to two decimal places.

Exceedances allowed without a violation being recorded: One per year

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.

Sulfur Dioxide (SO2)

The units for all averages in this chart are parts per million.
Year Number of
Exceedances
Annual
Average
Maximum
24-Hour Average
Maximum
3-Hour Average
Maximum
1-Hour Average
1993 0 0.009 0.029 0.118 0.154
1994 0 0.009 0.039 0.082 0.141
1995 0 0.007 0.039 0.106 0.161
1996 0 0.006 0.026 0.122 0.247
1997 0 0.009 0.045 0.138 0.161
1998 0 0.006 0.032 0.138 0.276
1999 0 0.006 0.020 0.073 0.095
2000 0 0.004 0.022 0.058 0.080
2001 0 0.004 0.017 0.065 0.090
2002 0 0.0043 0.022 0.041 0.064
2003 0 0.0034 0.024 0.055 0.090
2004 0 0.0039 0.018 0.045 0.079
2005 0 0.0040 0.025 0.046 0.090
2006 0 0.0029 0.015 0.072 0.114
2007 0 0.0026 0.013 0.043 0.058
2008 0 0.0025 0.010 0.056 0.162
2009 0 0.0034 0.014 0.042 0.061
2010
First Quarter 0 0.0035 0.011 0.026 0.004
Second Quarter 0
Third Quarter 0
Instrument shut down in 2010

 

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