Table 4.
Descriptive statistics for regression variables
| Stats | Pmave | PMave_C | PMmax10 | PMmax10_C | Wind | TS | Humidity | Temp |
|---|---|---|---|---|---|---|---|---|
| Passenger Trains | ||||||||
| Mean | .36212 | -.15727 | 9.7675 | -.15437 | 1.37 | 30.759 | 70.741 | 66.291 |
| SD | 1.7242 | 1.5461 | 7.8401 | 1.5532 | .621 | 7.1571 | 15.351 | 7.6733 |
| Min | -18.84 | -9.4019 | 2.5 | -9.4019 | 0 | 3.576 | 20 | 51.3 |
| Max | 29.84 | 13.801 | 39.75 | 13.801 | 3.62 | 44.253 | 95 | 93.1 |
| N | 2235 | 2235 | 20 | 20 | 2235 | 2235 | 2235 | 2235 |
| Freight Trains | ||||||||
| Mean | 4.2347 | 1.3748 | 22.745 | 2.5612 | 1.25 | 17.064 | 76.505 | 63.841 |
| SD | 9.8485 | 5.2076 | 31.526 | 7.3161 | .657 | 5.6849 | 15.177 | 8.2692 |
| Min | -9.8 | -7.057 | 0 | -5.2539 | 0 | 1.341 | 20 | 49.5 |
| Max | 68.46 | 36.208 | 157.73 | 49.002 | 3.88 | 38.889 | 96 | 100 |
| N | 568 | 568 | 507 | 507 | 568 | 568 | 568 | 568 |
| Full Coal Trains | ||||||||
| Mean | 6.3867 | 2.5569 | 24.305 | 4.2791 | 1.35 | 12.779 | 75.867 | 62.14 |
| SD | 13.3 | 6.5004 | 42.809 | 9.5825 | .724 | 5.5336 | 16.274 | 7.929 |
| Min | -.42 | -2.5676 | 1.7 | -2.0174 | .441 | 6.705 | 49 | 53.5 |
| Max | 41.43 | 19.443 | 162.4 | 33.68 | 2.73 | 29.055 | 94 | 76.6 |
| N | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Empty Coal Trains | ||||||||
| Mean | 1.935 | 1.5673 | 12.286 | 1.8331 | 1.38 | 15.837 | 60.286 | 71.943 |
| SD | 4.8405 | 2.5167 | 18.95 | 2.5482 | .582 | 3.192 | 15.544 | 6.9966 |
| Min | -.57 | -1.0231 | 1.35 | -1.0231 | .661 | 10.281 | 37 | 58.4 |
| Max | 18.54 | 9 | 74.3 | 9 | 2.73 | 20.115 | 84 | 85.9 |
| N | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
PMave Change in average PM2.5 (µg/m3), PMave_C Change in average Corrected PM2.5 (µg/m3), PMmax10 Change in peak PM2.5 (µg/m3), PMmax10_C Change in peak Corrected PM2.5 (µg/m3), Wind Average wind speed (m/s), TS Train speed (m/s), Temp Average Temp (F)