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该委员会列举了已证实对人致癌或在适当条件下对实验动物致癌的工业化学物如下。对人致癌的化学物分二类:1_a-已制订TLV,及1_b-环境材料尚不足以确定阈限值(TLV)。 A.1_a人致癌物已确认有致癌或协同致癌作用,并已制订了TLV的工业化学物为: 丙烯腈(1980年增订) 2 ppm 石棉(1980年采纳) 铁石棉 0.5纤维颗粒>5μm/c.c. 温石棉 2纤维颗粒>5μm/c.c. 青石棉 0.2纤维颗粒>5μm/c.c. 其他 2纤维颗粒>5μm/c.c. 氯甲甲醚 0.001 ppm 铬矿石加工(以铬计) 0.05 mg/m~3 烧灼硫化镍、烟尘及灰尘(以镍计) 1.0 mg/m~3 煤焦油沥青中的挥发性物质 (以苯溶性物质计) 0.2 mg/m~3 氯乙烯(1980年采纳) 5 ppm
The committee lists the following industrial chemicals that have proven to be carcinogenic to humans or carcinogenic to experimental animals under appropriate conditions. There are two types of chemicals that are carcinogenic to humans: 1_a TLVs have been developed and 1_b- environmental materials are not sufficient to establish threshold limits (TLVs). A.1_a Carcinogen of human carcinogen has been identified as carcinogenic or synergistic carcinogenic and has been developed for the TLV industrial chemicals: Acrylonitrile (updated 1980) 2 ppm Asbestos (Adopted in 1980) Asbestos 0.5 Fiber Particles> 5μm / cc Chrysotile 2 Fiber Particles> 5μm / cc Crocidolite 0.2 Fibrous Particles> 5μm / cc Others 2 Fiber Particles> 5μm / cc Chlormethytholone 0.001 ppm Chromium Ore Processing (As Chromium) 0.05 mg / m 3 Burning nickel sulfide, Soot and dust (based on nickel) 1.0 mg / m 3 Volatiles in coal tar pitch (based on benzene-soluble substances) 0.2 mg / m 3 Vinyl chloride (adopted in 1980) 5 ppm