Estimated mean personal exposure of children in school to PM10
| Personal exposure to PM10 | Background concentration of PM10 | |
|---|---|---|
| Activity | (μg/m3) | (μg/m3) |
| Results based on 9 days of measurement during March and April 1998 using a DUSTTRAK monitor. | ||
| Sitting in class (mean) | 98 | 14 |
| Sweeping | 272 | 8 |
| Games, rounders, other outdoor play (mean) | 144 | 13 |
| Break, lunchtime (inactive) (mean) | 88 | 15 |
| Packing up (mean) | 155 | 13 |