Table 1.
Overall and RUCC-stratified domain variable means, standard deviations, ranges for select variables in the air domain
| |
|
Metropolitan - urbanized |
Non-metro urbanized |
Less-urbanized |
Thinly populated |
Overall |
|---|---|---|---|---|---|---|
| |
|
(RUCC1 = 1089) |
(RUCC2 = 323) |
(RUCC 3 = 1059) |
(RUCC4 = 670) |
(n = 3141) |
| Variable (construct) | Units | Mean (sd) [range] | Mean (sd) [range] | Mean (sd) [range] | Mean (sd) [range] | Mean (sd) [range] |
| Nitrogen Dioxide |
Ppb |
7.95E + 02 (7.05E + 02) |
4.97E + 02 (4.13E + 02) |
4.21E + 02 (3.95E + 02) |
3.53E + 02 (3.36E + 02) |
5.44E + 02 (5.49E + 02) |
| (Criteria air pollutants) |
[1.01E + 00, 8.65E + 03] |
[1.29E + 00, 2.59E + 03] |
[1.00E + 00, 8.66E + 03] |
[1.00E + 00, 3.42E + 03] |
[1.00E + 00, 8.66E + 03] |
|
| PM10 |
μg/m3 |
14.199 (5.193) |
11.258 (4.533) |
9.852 (3.924) |
8.446 (3.596) |
11.204 (4.974) |
| (Criteria air pollutants) |
[1.777, 39.554] |
[2.370, 27.095] |
[1.000, 34.625] |
[1.011, 21.404] |
[1.000, 39.554] |
|
| PM2.5 |
μg/m3 |
10.621 (2.205) |
9.586 (2.351) |
9.379 (2.466) |
8.265 (2.745) |
9.593 (2.582) |
| (Criteria air pollutants) |
[3.443, 16.912] |
[2.162, 14.397] |
[1.029, 14.451] |
[1.138, 13.437] |
[1.029, 16.912] |
|
| Carbon disulfide |
tons emitted |
9.05E-03 (1.05E-01) |
5.94E-03 (6.12E-02) |
2.07E-03 (2.48E-02) |
7.92E-04 (1.13E-02) |
4.61E-03 (6.66E-02) |
| (Hazardous air pollutants) |
[5.50E-07, 2.30E + 00] |
[1.91E-06, 1.02E + 00] |
[1.34E-07, 5.66E-01] |
[5.88E-09, 2.62E-01] |
[5.88E-09, 2.30E + 00] |
|
| Carbon tetrachloride |
tons emitted |
0.497 (0.006) |
0.497 (0.003) |
0.497 (0.005) |
0.496 (0.008) |
0.497 (0.006) |
| (Hazardous air pollutants) |
[0.429, 0.558] |
[0.468, 0.511] |
[0.429, 0.568] |
[0.395, 0.509] |
[0.395, 0.568] |
|
| Cyanide compounds |
tons emitted |
3.88E-02 (5.55E-02) |
0.028 (0.037) |
1.29E-02 (3.04E-02) |
4.05E-03 (5.00E-03) |
2.16E-02 (4.16E-02) |
| (Hazardous air pollutants) |
[4.91E-04, 1.35E + 00] |
[0.003, 0.635] |
[1.15E-04, 9.50E-01] |
[3.08E-05, 6.45E-02] |
[3.08E-05, 1.35E + 00] |
|
| Diesel engine emissions |
tons emitted |
0.607 (0.516) |
0.352 (0.188) |
0.235 (0.129) |
1.53E-01 (9.87E-02) |
3.59E-01 (3.73E-01) |
| (Hazardous air pollutants) |
[0.034, 8.815] |
[0.035, 1.791] |
[0.001, 0.991] |
[1.59E-04, 5.42E-01] |
[1.59E-04, 8.82E + 00] |
|
| Lead compounds |
tons emitted |
2.23E-03 (3.84E-03) |
1.43E-03 (1.65E-03) |
9.34E-04 (2.21E-03) |
6.01E-04 (1.48E-03) |
1.36E-03 (2.82E-03) |
| (Hazardous air pollutants) |
[3.41E-04, 8.17E-02] |
[3.51E-04, 1.45E-02] |
[2.98E-04, 4.74E-02] |
[2.74E-04, 2.35E-02] |
[2.74E-04, 8.17E-02] |
|
| PAH/POM |
tons emitted |
1.62E-02 (3.00E-02) |
0.014 (0.021) |
7.66E-03 (1.58E-02) |
3.20E-03 (7.15E-03) |
1.03E-02 (2.19E-02) |
| (Hazardous air pollutants) |
[1.79E-04, 4.45E-01] |
[0.001, 0.139] |
[2.64E-05, 3.36E-01] |
[4.44E-05, 1.25E-01] |
[2.64E-05, 4.45E-01] |
|
| Polychlorinated biphenyls |
tons emitted |
1.71E-04 (4.16E-05) |
1.84E-04 (3.62E-05) |
1.69E-04 (2.06E-04) |
1.43E-04 (6.60E-05) |
1.66E-04 (1.27E-04) |
| (Hazardous air pollutants) |
[1.27E-04, 5.94E-04] |
[1.27E-04, 3.47E-04] |
[1.27E-04, 6.27E-03] |
[1.27E-04, 1.59E-03] |
[1.27E-04, 6.27E-03] |
|
| Vinyl chloride |
tons emitted |
1.10E-02 (1.09E-02) |
6.93E-03 (3.54E-03) |
1.33E-03 (3.75E-03) |
1.60E-04 (1.09E-03) |
4.99E-03 (8.36E-03) |
| (Hazardous air pollutants) | [5.00E-06, 1.05E-01] | [1.27E-06, 1.97E-02] | [4.37E-09, 9.41E-02] | [6.99E-10, 2.56E-02] | [6.99E-10, 1.05E-01] |
Complete list of variables is available in Additional file 2.