Table 1

Estimated arithmetic mean concentrations of respirable fibres (fibres.ml−1), 1995

Occupational groupPlantAll
123456
Primary production0.0890.1600.3460.3930.376
Secondary production0.2270.1450.2750.247
Conversion and finishing0.3160.9111.2490.4080.913
Ancillary0.0300.0750.3200.1670.1770.139
Not exposed0.032