Table 4

Main statistical parameters for urinary NMA and DMA at the end of the shift, without/with use of a mask and without/with immersion of hands in water

Statistical parametersWithout maskWith maskNo immersion of handsImmersion of hands
Count18171816
NMA (mg/g creat.)
Average12.815.712.614.5
Median11.910.711.710.4
Minimum6.65.66.45.6
Maximum24.344.624.344.6
DMA (mg/l)
Average0.770.610.660.75
Median0.710.650.690.68
Minimum0.220.180.180.26
Maximum1.860.981.251.86