Exact(22)
On the other hand, results from the BIA study exceed our maxima workplace concentrations [ 30].
A 1992 study showed that workplace concentrations of phenylenediamine were below the ACGIH TLV-TWA [ 20].
We measured personal exposures and workplace concentrations during a work shift, with repeated sampling across two (hot and cold) seasons.
As outlined before, this might have been a consequence of a set of PE activities not reflected in workplace concentrations.
Ethanol was used to categorize hairdressing workplace concentrations according to ventilation levels and intensity of technical services [ 21].
Our average workplace concentrations are also respectively 6.6 and 21.1 times higher than those found in the small and large salons they studied [ 27].
Similar(38)
The sensitivity and signal reproducibility in the MAK-range (5 ppm, maximum workplace concentration according to German federal law) is good.
The maximum permissible workplace concentration of airborne 210Po is about 10 Bq/m3 ( µCi/cm3).
However, for none of these compounds is the addition of the workplace concentration significant at the 0.10 level.
For the 85,195 workplace EYs for which we assigned an arsenic level, estimates of median workplace concentration were 0.5 µg/L (IQR, 0.3 1.2; 72,003 EYs) for PWS and 2.4 µg/L (IQR, 0.9 9.6; 9,321 EYs) for private wells.
This is mainly due to the presence of high concentrations in the PE subset not related to workplace concentration as a consequence of strong VOC sources such as home indoor or personal activity sources.
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