Eldorado Springs

Environmental Services Program

El Dorado Springs

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

County: Cedar Site ID: 29-039-0001

Pollutants Monitored: Ozone (O3), Inhalable Particulate (PM2.5)

Ozone (O3)

Updated: Quarterly

National Ambient Air Monitoring Standard:

Eight-hour Standard
The three-year average of the fourth highest daily maximum eight-hour average must not be greater than 0.075 ppm (parts per million). To attain this standard, the three-year average of the fourth-highest daily maximum eight-hour average ozone concentrations measured at each monitor within an area over each year must not exceed 0.075 ppm. (Effective May 27, 2008).

Exceedances allowed without a violation being recorded:
The term exceedance does not apply to the eight-hour standard. The three-year average is used to determine designation of attainment or non-attainment.

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.

The units for all averages in this chart are parts per million.
Year	Number of Days Over Standard	Maximum 1-Hour Average	Maximum 8-Hour Average	Fourth Maximum 8-Hour Average
1998	0	0.096	not available	not available
1999	0	0.105	not available	not available
2000	0	0.107	not available	not available
2001	0	0.084	not available	not available
2002	2	0.101	0.089	0.082
2003	0	0.087	0.082	0.080
2004	1	0.095	0.086	0.071
2005	0	0.091	0.084	0.079
2006	0	0.089	0.078	0.075
2007	0	0.085	0.079	0.074
2008	1	0.096	0.077	0.067
2009	0	0.072	0.067	0.062
2010	1	0.084	0.080	0.068
2011	3	0.091	0.081	0.074
2012
First Quarter	0	0.098	0.091	0.081
Second Quarter	4
Third Quarter	10

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

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	31.2	29.9	11.29
2000	37.3	35.7	11.47
2001	26.5	25.1	11.6
2002	31.7	30.5	11.8
2003	38.3	30.4	11.4
2004	31.7	26.3	9.92
2005	33.9	33.2	12.08
2006	23.4	21.4	11.87
2007(TEOM)	37.7	37.2	12.6
2008	28.2	23.9	10.55
2009 (Thru 3rd quarter)	20.4	20.1	8.65
Data from continuously operated TEOM
Year	First Maximum 24-Hour Average	98th Percentile Value	Annual Average
2010	30.1	23.5	10.95
2011	28.1	25.3	12.08
2012
Through Third Quarter	25.6	20.4	10.36