Seasons | Average plume rises during weekdays (m) | Sample size | Standard error (m) | Average plume rises during weekends (m) | Sample size | Standard error (m) |
Fall 08 | 2.02 | 4 | 2.02 | 19.76 | 16 | 9.53 |
Winter 08 | 6.23 | 11 | 9.79 | 12.60 | 4 | 7.93 |
Spring 09 | 12.78 | 23 | 10.20 | 24.91 | 10 | 13.39 |
Summer 09 | 14.10 | 14 | 10.80 | 14.90 | 5 | 8.30 |