Table 20 - Page 2
| Ambient Air Quality Data for the
San Diego-Tijuana Area |
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| COUNTY |
Ref |
Pollutant |
Unit. |
Yr |
No. of |
Arith. |
Std. |
Geom. |
Std. |
High |
2nd Hi |
Highest |
|
# |
|
|
|
Obs. |
Mean |
Dev. |
Mean |
Dev. |
Read. |
Read. |
95% |
| SD |
SD-1 |
S. Dioxide |
ppm |
93 |
8645 |
0.0023 |
0.003 |
0.0017 |
1.9 |
0.056 |
0.054 |
0.005 |
| SD |
SD-1 |
S. Dioxide |
ppm |
94 |
8641 |
0.0024 |
0.0044 |
0.0016 |
2.04 |
0.098 |
0.083 |
0.007 |
| SD |
SD-1 |
S. Dioxide |
ppm |
95 |
8506 |
0.0029 |
0.0041 |
0.0021 |
2.02 |
0.081 |
0.073 |
0.007 |
| SD |
SD-1 |
S. Dioxide |
ppm |
96 |
5503 |
0.0041 |
0.0048 |
0.0033 |
1.73 |
0.087 |
0.083 |
0.011 |
| TJ |
SD-10 |
Lead |
ug/m3 |
94 |
29 |
0.037 |
0.02 |
0.033 |
1.6 |
0.1 |
0.09 |
0.09 |
| TJ |
SD-10 |
Lead |
ug/m3 |
96 |
25 |
0.035 |
0.024 |
0.028 |
1.91 |
0.08 |
0.08 |
0.08 |
| TJ |
SD-10 |
PM-10 |
ug/m3 |
96 |
34 |
46.2 |
14.6 |
43.9 |
1.38 |
79 |
77 |
77 |
| TJ |
SD-11 |
Lead |
ug/m3 |
94 |
31 |
0.027 |
0.017 |
0.023 |
1.84 |
0.08 |
0.06 |
0.06 |
| TJ |
SD-11 |
Lead |
ug/m3 |
96 |
29 |
0.034 |
0.027 |
0.027 |
1.96 |
0.12 |
0.09 |
0.09 |
| TJ |
SD-10 |
PM-10 |
ug/m3 |
96 |
38 |
52.8 |
17.6 |
50.1 |
1.39 |
105 |
91 |
91 |
| TJ |
SD-12 |
Lead |
ug/m3 |
96 |
20 |
0.017 |
0.009 |
0.015 |
1.72 |
0.04 |
0.04 |
0.04 |
| TJ |
SD-12 |
PM-10 |
ug/m3 |
96 |
37 |
35.6 |
9.1 |
34.6 |
1.28 |
60 |
58 |
58 |
| SD |
SD-2 |
Ozone |
ppm |
91 |
8501 |
0.0621 |
0.0212 |
0.0585 |
1.45 |
0.17 |
0.15 |
0.1 |
| SD |
SD-2 |
Ozone |
ppm |
92 |
8612 |
0.0584 |
0.0194 |
0.0555 |
1.38 |
0.14 |
0.13 |
0.1 |
| SD |
SD-2 |
Ozone |
ppm |
93 |
8604 |
0.0558 |
0.0204 |
0.0526 |
1.4 |
0.177 |
0.155 |
0.095 |
| SD |
SD-2 |
Ozone |
ppm |
94 |
8667 |
0.0524 |
0.0146 |
0.0504 |
1.33 |
0.112 |
0.111 |
0.079 |
| SD |
SD-2 |
Ozone |
ppm |
95 |
8625 |
0.0564 |
0.0172 |
0.0539 |
1.35 |
0.122 |
0.118 |
0.088 |
| SD |
SD-2 |
Ozone |
ppm |
96 |
5812 |
0.0509 |
0.0128 |
0.0494 |
1.28 |
0.102 |
0.091 |
0.074 |
| SD |
SD-3 |
CO |
ppm |
91 |
8583 |
1.62 |
1.35 |
1.3 |
1.86 |
12 |
12 |
5 |
| SD |
SD-3 |
CO |
ppm |
92 |
8616 |
1.53 |
1.33 |
1.21 |
1.91 |
14 |
13 |
4 |
| SD |
SD-3 |
CO |
ppm |
93 |
8633 |
1.2 |
1.3 |
0.8 |
2.1 |
11 |
11 |
4 |
| SD |
SD-3 |
CO |
ppm |
94 |
8568 |
1.3 |
1.4 |
0.9 |
2.17 |
11 |
11 |
4 |
| SD |
SD-3 |
CO |
ppm |
95 |
8460 |
1.13 |
1.11 |
0.84 |
2.01 |
9.9 |
9.9 |
3.4 |
| SD |
SD-3 |
CO |
ppm |
96 |
5735 |
0.92 |
0.94 |
0.71 |
1.84 |
11.2 |
11.1 |
2.6 |
| SD |
SD-3 |
N. Dioxide |
ppm |
91 |
8505 |
0.0275 |
0.0174 |
0.023 |
1.84 |
0.14 |
0.13 |
0.06 |
| SD |
SD-3 |
N. Dioxide |
ppm |
92 |
8583 |
0.0264 |
0.0152 |
0.0226 |
1.76 |
0.13 |
0.13 |
0.06 |
| SD |
SD-3 |
N. Dioxide |
ppm |
93 |
8433 |
0.0219 |
0.0134 |
0.0185 |
1.82 |
0.122 |
0.111 |
0.048 |
| SD |
SD-3 |
N. Dioxide |
ppm |
94 |
8515 |
0.0242 |
0.0143 |
0.0205 |
1.8 |
0.157 |
0.144 |
0.052 |
| SD |
SD-3 |
N. Dioxide |
ppm |
95 |
8279 |
0.0257 |
0.016 |
0.0215 |
1.85 |
0.125 |
0.121 |
0.056 |
| SD |
SD-3 |
N. Dioxide |
ppm |
96 |
5700 |
0.0194 |
0.011 |
0.0165 |
1.79 |
0.083 |
0.082 |
0.041 |
| SD |
SD-3 |
Ozone |
ppm |
91 |
8532 |
0.0619 |
0.0244 |
0.0575 |
1.48 |
0.21 |
0.18 |
0.1 |
| SD |
SD-3 |
Ozone |
ppm |
92 |
8651 |
0.0605 |
0.0227 |
0.0564 |
1.46 |
0.15 |
0.15 |
0.1 |