James River South, Springfield

Site Operator: Springfield/Greene County Air Quality

Pollutants Monitored: Sulfur Dioxide (SO2)

Sulfur Dioxide (SO2)

Updated: Monthly

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.

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
1995	0	.008	.098	.242	.302
1996	1	.008	.215	.358	.530
1997	0	.008	.067	.228	.264
1998	0	.004	.045	.087	.128
1999	0	.003	.048	.083	.125
2000	0	.004	.103	.180	.187
2001	0	.003	.089	.138	.171
2002	0	.0032	.061	.113	.144
2003	0	.0032	.032	.073	.106
2004	0	.0029	.041	.075	.084
2005	0	.0030	.041	.099	.122
2006	0	.0032	.055	.086	.120
2007	0	.0025	.035	.088	.106
2008
FIRST QUARTER	0	.0033	.041	.074	.099
SECOND QUARTER	not available
THIRD QUARTER	not available

Graph of Recent Sulfur Dioxide (SO2) Data
Graph of SO2 PPM.