Abstract
危险性评价和管理理论始于1983年,由美国国家研究委员会(NRC)首先提出,并将其划分为危害识别(Hazard identification)、剂量-反应评价(Dose response assessment)、暴露评价(Exposure assessment)和危险度描述(Risk characterization)4个阶段[1].自此,围绕危险性评价与管理的4个阶段对环境污染物致机体危害的危险性评价技术和方法得到了广泛应用[2-3].危险度评价与管理模式是由多步骤组成的,关于识别、分析和评价职业危害,确定危险度水平和管理危险度的一个系统的关联过程。
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