安全第 1303 / 1605 题
The OSHA permissible exposure limit for lead in construction is:
a.5 µg/m3
b.500 µg/m3
c.No limit applies to construction
d.50 µg/m3 as an 8-hour TWA
解析
The lead PEL is 50 µg/m3 as an 8-hour TWA, with an action level of 30 µg/m3 that triggers exposure monitoring and other requirements. Lead is a cumulative toxin.
法律依据: 29 CFR 1926.62(c)免费刷完整 1605 道题库 — 无需注册。
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