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

Pollutants Monitored: Sulfur Dioxide (SO2), Lead (Pb)


 

 

Lead (Pb)

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

National Ambient Air Quality Standard: (24-hour samples; one taken every sixth day) A three-month average of 1.5 ug/m3 (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.

Lead (Pb)

The units for all averages in this chart are micrograms per cubic meter.
Year Number of
Exceedances
Maximum
3-Month Average
Maximum
24-Hour Average
1993 2 2.75 11.39
1994 1 1.79 9.12
1995 1 1.56 5.89
1996 4 2.78 9.59
1997 0 .31 2.60
1998 0 .26 2.89
1999 0 .27 1.56
2000 0 .33 2.4
2001 0 .39 1.34
2002 0 .33 4.98
2003 0 .202 1.38
2004 0 .010 .099
2004 (instrument removed 3rd quarter)

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