 |
|
|
ANNUAL MEAN AND MAXIMUM BENZENE LEVELS AT SELECTED TOXICS
MONITORING SITES, 1993, 1995 and 1997
|
|
SITE
|
ANNUAL MEAN*
|
MAXIMUM 24-HOUR**
|
|
HadenRd., Houston
|
1.72
|
10.83
|
|
|
2.70
|
63.63
|
|
|
1.29
|
7.88
|
|
El Paso
|
2.26
|
8.73
|
|
|
1.58
|
5.01
|
|
|
1.11
|
2.61
|
|
Odessa
|
1.51
|
4.78
|
|
|
0.72
|
2.24
|
|
|
0.74
|
1.96
|
|
Texas City
|
0.97
|
2.86
|
|
|
0.99
|
3.52
|
|
|
0.64
|
1.73
|
|
Channelview
|
1.16
|
3.11
|
|
|
1.05
|
3.01
|
|
|
1.18
|
7.71
|
|
Allendale, Houston
|
1.19
|
6.54
|
|
|
1.03
|
3.57
|
|
|
1.27
|
8.41
|
|
Clinton, Houston
|
1.29
|
2.40
|
|
|
1.49
|
3.64
|
|
|
1.07
|
4.45
|
|
Port Arthur
|
0.95
|
4.85
|
|
|
1.68
|
14.40
|
|
|
0.74
|
3.50
|
|
Groves, Jefferson County
|
2.17
|
7.81
|
|
|
1.08
|
6.46
|
|
|
0.85
|
5.99
|
|
Corpus Christi
|
1.17
|
5.01
|
|
|
1.06
|
5.70
|
|
|
0.85
|
2.55
|
|
Source: Texas Natural Resource Conservation Commission, Community
Air Toxics Monitoring Network Report: January-December 1997 (1999), Appendix A.
|
|
* Effects Screening Level: 1 part-per-billion-volume
** Effects Screening Level: 4 parts per billion volume
|
|
|
|
|
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