4.3. Referencevalues
Although no threshold limit value has been set for ETS in
workplace air, one has been established for most of the compounds
measured here. This value is often related to their use as solvents
and has not been applied when assessing complex decomposition
mixtures such as ETS. The lowest 8 h limit values have been stated
for the carcinogens,1,3-BD (4.4mg/m3) and benzene (1.6mg/m3 )
(ACGIH, 2007). The measured concentrations of 1,3-BD and benzene
(o1%) were clearly below these limit values.