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1000
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Abstract/Summary
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In 2015 the German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has re‐evaluated dichloromethane [CAS No. 75‐09‐2], considering dichloromethane in blood to characterize the internal exposure. In a chamber study, 14 non‐smokers were exposed to different concentrations of dichloromethane. After exposure to the present MAK value of 50 ml dichloromethane/m³ without physical activity, a concentration of 0.3 mg dichloromethane/l blood was measured. Considering an increased intake due to elevated breathing volume during work, the exposure to 50 ml dichloromethane/m³ results in a blood concentration of 0.5 mg/l. Taking into account this study and the EKA correlation of 2001, a BAT value of 500 µg dichloromethane/l blood was evaluated. Sampling time is straight after exposure.
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