Table II.
Summary of all explanatory variables tested
| Air Quality Station ID | Weekday AM Peak VKT (Thousands of VKT) | Populating Density (Persons/mi2) | Industrial Land-use (Acres) | Elevation (m) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||||||
| Buffer size (km) | Buffer size (km) | Buffer size (km) | |||||||||||
| 0.5 | 1 | 1.5 | 2 | 0.5 | 1 | 1.5 | 2 | 0.5 | 1 | 1.5 | 2 | ||
| 183-0015 | 1.91 | 16.8 | 77.7 | 164 | 5,080 | 4,480 | 4,060 | 3,480 | 0 | 0 | 0 | 20 | 127 |
| 183-0003 | 16.2 | 88.0 | 145 | 220 | 2,850 | 2,650 | 2,540 | 2,530 | 0 | 0 | 0 | 0 | 125 |
| 183-0014 | 8.91 | 48.3 | 109 | 175 | 4,280 | 3,670 | 3,120 | 2,750 | 0 | 15 | 36 | 63 | 100 |
| 183-0020 | 3.98 | 8.89 | 14.0 | 36.6 | 309 | 309 | 310 | 749 | 0 | 0 | 30 | 38 | 120 |
| 135-0007 | 8.66 | 47.2 | 96.4 | 146 | 3,860 | 4,900 | 5,180 | 4,400 | 0 | 10 | 13 | 15 | 145 |
| 037-0004 | 0.10 | 9.26 | 18.8 | 26.0 | 147 | 161 | 170 | 173 | 0 | 0 | 0 | 6 | 121 |
| 063-0001 | 21.0 | 77.5 | 145 | 207 | 4,360 | 4,080 | 3,880 | 4,150 | 4 | 17 | 34 | 42 | 147 |
| 063-0015 | 13.6 | 36.0 | 104 | 166 | 2,120 | 2,360 | 2,380 | 2,530 | 6 | 82 | 86 | 86 | 118 |
|
| |||||||||||||
| Mean | 10.4 | 41.5 | 88.7 | 143 | 2,880 | 2,830 | 2,710 | 2,600 | 1.3 | 16 | 25 | 34 | 125 |
| Stnd. Dev. | 6.64 | 28.0 | 47.0 | 68.0 | 1,750 | 1,700 | 1,650 | 1,400 | 2.2 | 26 | 27 | 28 | 14 |
NOTE: Bold values indicate explanatory variable values used in the final LUR model.