Table 2

Total dust and protease concentrations in the detergent factory

Area samplesPersonal samples
Samples (n)MeanMedianRangeSamples (people) (n)MeanMedianRange
DET 1:
 Total dust (mg/m3)100.20.10.05–1.112 (6)0.40.2<0.07–1.3
 Protease (ng/m3)10NDND<4.0–152-150 12 (6)NDND<55–702-150
DET 2:
 Total dust (mg/m3)50.40.20.1-1.36 (3)0.40.3<0.3–1.2
 Protease (ng/m3)35001611-15003 (3)510170<55–1300
  • 2-150 Only one result over detection limit.

  • ND=not determined.

  • Production lines in the factory: DET1=laundry detergents, DET 2=dish washing detergents.