美国国家职业安全与卫生研究所1982年报告,在美国工业系统中估计有数百万工人接触有潜在性危害的化学物质。这些化学物质中许多都具有诱变性和/或致癌性。1986年的报告指出,通过在科学管理上的努力,使环境和车间中的诱变剂和致癌物的水平有所下降,但是未必能完全消除人们接触这些物质。更重要的是,对大多数接触者所接触的诱变剂尚不清楚。目前这些诱变剂尚无安 The 1982 National Institute of Occupational Safety and Health reported that millions of workers in the U.S. industrial system are estimated to have access to potentially harmful chemicals. Many of these chemicals are mutagenic and / or carcinogenic. The 1986 report states that the level of mutagen and carcinogens in the environment and in the workshop has declined through efforts in scientific management, but it may not be able to completely eliminate the exposure of people to these substances. More importantly, the mutagens to which most contacts are exposed remain unclear. At present, these mutagens are not yet safe