Environmental concentrations of PM10 measured on Montserrat 1998–99 using DUSTTRAK monitors
| Location | Period over which measurements made | Mean daily mean concentration of PM10 (SD), μg/m3 | Percentage of daily mean measurements >50 μg/m3 |
|---|---|---|---|
| St Johns and Woodlands are in the North of the Island and Isles Bay is within the area classified as Cork Hill in other tables. | |||
| *Area not occupied during measurement period. | |||
| St Johns—MVO (North) | 8 March to 30 August 1998 | 19.9 (16.5) | 5% |
| 13 June to 6 August 1999 | 32.8 (16.1) | 21% | |
| Woodlands | 8 March to 22 August 1998 | 23.6 (19.7) | 10% |
| Salem—MVO (South)* | 8 March to 2 July 1998 | 24.2 (16.5) | 10% |
| Salem—central square | 20 May to 30 August 1998 | 39.9 (44.6) | 18% |
| 16 May to 6 August 1999 | 80.9 (100.0) | 59% | |
| Iles Bay* | 15 May to 6 August 1999 | 62.1 (49.5) | 56% |
| Cork Hill* | 16 May to 6 August 1999 | 56.6 (43.6) | 52% |