Sample ref | Date of sampling | Type of sample | Location of sampler | Time of sampling | Fibres counted | Results fibres/ml | Flow rate 1/min | Graticule areas counted/filter |
1347 | 30 Nov 94 | Static | East end of work areas on wall | 1h 57min | 5.0 | <0.01 | 2 | 300 |
1348 | 30 Nov 94 | Static | South end of work area on wall beneath fire damaged roof | 1h 25min | 6.5 | <0.01 | 2 | 300 |
1349 | 30 Nov 94 | Static | West end of work area on wall | 1h 23min | 6.5 | <0.01 | 2 | 300 |
1350 | 30 Nov 94 | Static | North end of work area on wall | I h 20min | 4.0 | <0.01 | 2 | 300 |
1351 | 30 Nov 94 | Personal | Inside cab of excavator | 1h 01min | 4.5 | <0.04 | 1 | 200 |
1356 | 06 Dec 94 | Personal | Inside excavator cab | 0h 47min | 1.0 | <0.12 | 1 | 100 |
1362 | 06 Dec 94 | Personal | Inside excavator cab | 4h | 5.0 | <0.02 | 1 | 100 |
1361 | 06 Dec 94 | Personal | On person by stairwell | 4h 30min | 3.0 | <0.02 | 1 | 100 |
1357 | 06 Dec 94 | Static | East end of work area on wall | 2h | 6.0 | <0.01 | 2 | 200 |
1358 | 06 Dec 94 | Static | South end of work area on wall where contaminated sheets were stored | 2h | 3.5 | <0.01 | 2 | 200 |
1359 | 06 Dec 94 | Static | West end of work area on wall | 1h 14min | 2.5 | <0.01 | 2 | 200 |
1360 | 06 Dec 94 | Static | North end of work area on wall adjacent to New Chester Road | 2h 15min | 3.0 | <0.01 | 2 | 200 |
For samples 1356, 1361 and 1362, work involved cutting and moving metal debris and loading it on to two wagons for subsequent disposal, with disturbance of asbestos contaminated debris. For samples 1357–1360 the contractors disturbed contaminated debris and the air in the vicinity of the sample. For samples 1347–51, the air was being actively disturbed by the contractors.