职业性接触毒物危害程度分级[1] 和有毒作业分级[2 ] 两项国家标准公布已有多年 ,但在基层职业卫生监督和职业卫生评价中仍然未能普遍应用。本文对职业卫生评价中仍然未能普遍应用。本文对肇庆市制鞋企业有毒作业危害程度进行了分级调查。1　对象和方法1 1　对象　　肇庆市已开 Occupational exposure to toxic hazard classification [1] and toxic operation classification [2] two national standards have been published for many years, but at the grassroots level occupational health monitoring and occupational health evaluation is still not widely used. This article is still not universally applicable to occupational health evaluation. In this paper, Zhaoqing City, a toxic shoe-making operations carried out a classification of hazardous levels. 1 objects and methods 1 1 object Zhaoqing City has been opened