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长期低剂量的苯暴露可导致机体白细胞数下降。目前多以区域采样的瞬时浓度或时间加权平均浓度来评价苯作业环境。并以此估测人体的吸收水平;但终因工种、暴露时间、劳动强度及个体情况各异而难以评定暴露者个体实际吸收量。本次调查以作业者呼
Long-term, low-dose benzene exposure can cause a reduction in the body’s white blood cell count. Currently more than the regional sampling instantaneous concentration or time-weighted average concentration to evaluate the operating environment of benzene. And thus to estimate the level of absorption of the human body; however, it is difficult to assess the actual amount absorbed by the individual exposed due to different types of work, exposure time, labor intensity and individual circumstances. The survey call to operators