Table 10.
Average particulate matter (PM) concentrations (average calculated from all particulate matter fractions) depending on the season, the horse care system—before (BB) and after bedding (AB) (µg/m3)
| Stable | Season | |||||||
|---|---|---|---|---|---|---|---|---|
| Spring | Summer | Autumn | Winter | |||||
| BB | AB | BB | AB | BB | AB | BB | AB | |
| R1 |
146b ****** |
171b | 216a | 244a | 151c | 205b | 123c | 350a |
| R2 | 139b | 234a | 162b | 243a | 160c | 282a | 121c | 263b |
| R3 | 160b | 365a | 154b | 148b | 174c | 357a | 124c | 434a |
| All R | 148b | 257a | 177b | 211a | 162c | 281a | 123c | 349a |
| B1 | 134b | 170b | 158b | 248a | 168c | 248a | 127c | 227b |
| B2 | 128b | 174b | 178b | 188b | 187c | 271a | 132c | 388a |
| All B | 131b | 172b | 168b | 218a | 178c | 259a | 130c | 308a |
| C | 120 | 56 | 141 | 140 | ||||
Legend: BB before bedding; AB after bedding; R1, R2, R3 runner 1, runner 2, runner 3; B1 box stable 1; B2 box stable 2; All R average for all runners; All B average for box stables, C control
******Averages marked with the same letters are not significantly different by Tukey’s test (p > 0.05)