Table 2 - Number of Stations Violating National Ambient Air Quality Standards, 1997
SO2
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| Annual Primary
| 0.03 ppm
| 0/13
| 0/9
| 0/20
| 0/11
| 0/3
| 0/2
|
| 24-hour Primary*
| 0.14 ppm
| 0/13
| 0/9
| 0/20
| 0/11
| 0/3
| 0/2
|
| 3-hour Secondary*
| 0.5 ppm
| 0/13
| 0/9
| 0/20
| 0/11
| 0/3
| 0/2
|
PM10
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| Annual Primary
| 50 µg/m3
| 0/25
| 0/22
| 0/16
| 0/13
| 0/7
| 0/7
|
| 24-hour Primary**
| 150 µg/m3
| 0/25
| 0/22
| 0/16
| 0/13
| 0/7
| 0/7
|
CO
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| 8-hour Primary*
| 9 ppm
| 0/5
| ---
| 0/9
| 0/2
| 0/3
| 0/2
|
| 1-hour Primary*
| 35 ppm
| 0/5
| ---
| 0/9
| 0/2
| 0/3
| 0/2
|
O3
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| 1-hour Primary***
| 0.12 ppm
| 11/12
| 3/11
| 2/16
| 1/12
| 0/4
| 0/2
|
NO2
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| Annual Primary
| 0.05 ppm
| 0/5
| 0/2
| 0/13
| 0/2
| 0/2
| 0/2
|
Pb
|
| Standard
| CT
| ME
| MA
| NH
| RI
| VT
|
| Quarterly Mean
| 1.5 µg/m3
| ---
| ---
| ---
| ---
| ---
| ---
|
- *
- Unless the second highest average exceeds the NAAQS, there is no violation.
- **
- Expected number of exceedances shall not be more than one per year (3 year average) as determined by Appendix K of 40CFR Part 50.
- ***
- Expected number of exceedance days shall not be more than one per year (3 year average) as determined by Appendix K of 40CFR Part 50.
- x/y
- x is the number of stations in violation.
y is the total number of stations.
- ---
- This pollutant is not monitored in the state.
PREV
UP
NEXT
Steven McDougall /
swmcd@theworld.com /
1998 September 27