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"Benzene" will be strictly controlled, and the occupational exposure limit will be halved!
Time：
2022-12-06
The National Health Commission issued the Amendment No. 1 to Occupational Exposure Limits for Hazardous Agents in the Workplace - Part 1: Chemical Hazardous Agents (GBZ2.1-2019), which formally adjusted the exposure limit of benzene in the air of the workplace and implemented it from November 28.
On November 28, the National Health Commission issued Guo Wei Tong [2022] No. 14, and issued Amendment No. 1 to Occupational Exposure Limits for Hazardous Agents in the Workplace - Part 1: Chemical Hazardous Agents (GBZ2.1-2019), which formally adjusted the exposure limit of benzene in the air of the workplace and came into effect on November 28.
Let's see what has changed：
Comparison Table for Modification of Occupational Exposure Limit of Benzene1
|
Modify Item |
PC-TWA |
PC-STEL |
Critical adverse health effects |
|
GBZ2.1-2019 |
6 mg/m3 |
10 mg/m3 |
Dizziness, headache and disturbance of consciousness; Susceptibility to infection and bleeding; Pancytopenia, aplastic anemia, leukemia |
|
Draft for Comments |
3 mg/m3 |
6 mg/m3 |
Nervous system injury; Whole blood cells decreased; Aplastic anemia |
|
Amendment No. 1 |
3 mg/m3 |
6 mg/m3 |
Nervous system damage; Hematotoxicity |
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