Table 20 - Page 6
| 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-7 |
PM-10 |
ug/m3 |
93 |
60 |
33.7 |
13.9 |
31 |
1.52 |
73 |
67 |
59 |
| SD |
SD-7 |
PM-10 |
ug/m3 |
94 |
61 |
33.7 |
12 |
31.8 |
1.42 |
76 |
67 |
54 |
| SD |
SD-7 |
PM-10 |
ug/m3 |
95 |
60 |
35.1 |
21.7 |
29.9 |
1.77 |
115 |
97 |
91 |
| SD |
SD-7 |
PM-10 |
ug/m3 |
96 |
39 |
25.8 |
12.4 |
24.2 |
1.4 |
92 |
35 |
35 |
| SD |
SD-7 |
S. Dioxide |
ppm |
91 |
8414 |
0.0044 |
0.0054 |
0.0022 |
3.1 |
0.11 |
0.06 |
0.01 |
| SD |
SD-7 |
S. Dioxide |
ppm |
92 |
8483 |
0.0049 |
0.006 |
0.0024 |
3.2 |
0.09 |
0.08 |
0.01 |
| SD |
SD-7 |
S. Dioxide |
ppm |
93 |
8493 |
0.0028 |
0.0026 |
0.0022 |
1.93 |
0.047 |
0.037 |
0.007 |
| SD |
SD-7 |
S. Dioxide |
ppm |
94 |
8404 |
0.0026 |
0.0029 |
0.002 |
1.93 |
0.069 |
0.042 |
0.007 |
| SD |
SD-7 |
S. Dioxide |
ppm |
95 |
8433 |
0.0029 |
0.0029 |
0.0024 |
1.73 |
0.063 |
0.053 |
0.006 |
| SD |
SD-7 |
S. Dioxide |
ppm |
96 |
5589 |
0.0032 |
0.0032 |
0.0026 |
1.63 |
0.048 |
0.048 |
0.007 |
| SD |
SD-8 |
CO |
ppm |
91 |
8390 |
1.17 |
0.61 |
1.05 |
1.62 |
7 |
7 |
2 |
| SD |
SD-8 |
CO |
ppm |
92 |
8325 |
1.07 |
0.49 |
0.97 |
1.62 |
6 |
5 |
2 |
| SD |
SD-8 |
CO |
ppm |
93 |
8147 |
0.98 |
0.5 |
0.88 |
1.58 |
4.7 |
4.4 |
2 |
| SD |
SD-8 |
CO |
ppm |
94 |
8176 |
0.88 |
0.58 |
0.73 |
1.85 |
5.4 |
4.9 |
2 |
| SD |
SD-8 |
CO |
ppm |
95 |
8356 |
0.9 |
0.54 |
0.77 |
1.75 |
4.8 |
4.5 |
2 |
| SD |
SD-8 |
CO |
ppm |
96 |
5648 |
0.74 |
0.42 |
0.65 |
1.7 |
4.5 |
4.3 |
1.5 |
| SD |
SD-8 |
N. Dioxide |
ppm |
91 |
8096 |
0.0267 |
0.0172 |
0.0223 |
1.82 |
0.14 |
0.14 |
0.06 |
| SD |
SD-8 |
N. Dioxide |
ppm |
92 |
7715 |
0.0241 |
0.0143 |
0.0204 |
1.78 |
0.14 |
0.11 |
0.05 |
| SD |
SD-8 |
N. Dioxide |
ppm |
93 |
7900 |
0.0227 |
0.0137 |
0.0192 |
1.79 |
0.119 |
0.116 |
0.049 |
| SD |
SD-8 |
N. Dioxide |
ppm |
94 |
8059 |
0.0239 |
0.0139 |
0.0203 |
1.8 |
0.127 |
0.114 |
0.05 |
| SD |
SD-8 |
N. Dioxide |
ppm |
95 |
8195 |
0.0229 |
0.0141 |
0.0191 |
1.87 |
0.124 |
0.123 |
0.049 |
| SD |
SD-8 |
N. Dioxide |
ppm |
96 |
5644 |
0.0202 |
0.0115 |
0.0174 |
1.75 |
0.093 |
0.092 |
0.042 |
| SD |
SD-8 |
Ozone |
ppm |
91 |
8331 |
0.0603 |
0.0224 |
0.0565 |
1.44 |
0.18 |
0.15 |
0.1 |
| SD |
SD-8 |
Ozone |
ppm |
92 |
8249 |
0.0571 |
0.0219 |
0.0534 |
1.44 |
0.16 |
0.16 |
0.09 |
| SD |
SD-8 |
Ozone |
ppm |
93 |
8067 |
0.0529 |
0.0198 |
0.0496 |
1.42 |
0.146 |
0.136 |
0.09 |
| SD |
SD-8 |
Ozone |
ppm |
94 |
8248 |
0.0505 |
0.0146 |
0.0483 |
1.35 |
0.102 |
0.101 |
0.078 |
| SD |
SD-8 |
Ozone |
ppm |
95 |
8315 |
0.0524 |
0.0169 |
0.0497 |
1.39 |
0.12 |
0.106 |
0.085 |
| SD |
SD-8 |
Ozone |
ppm |
96 |
5657 |
0.0504 |
0.0164 |
0.0479 |
1.37 |
0.12 |
0.1 |
0.084 |
| SD |
SD-8 |
PM-10 |
ug/m3 |
93 |
62 |
29.6 |
15.1 |
26.1 |
1.69 |
79 |
70 |
56 |
| SD |
SD-8 |
PM-10 |
ug/m3 |
94 |
57 |
30 |
10.1 |
28.1 |
1.48 |
60 |
49 |
48 |
| SD |
SD-8 |
PM-10 |
ug/m3 |
95 |
55 |
32.2 |
17.5 |
27.5 |
1.83 |
82 |
76 |
68 |
| SD |
SD-8 |
PM-10 |
ug/m3 |
96 |
40 |
26.1 |
9.3 |
24.5 |
1.44 |
50 |
44 |
40 |