某化工厂技改后 12年生产车间空气中TNT浓度均在最高容许浓度 (MAC)以下。本文对其TNT白内障发病情况及在MAC以下剂量长期作用下肝脏的改变形式进行了分析。 The TNT concentrations in the air of the workshop after 12 years of technological transformation of a chemical plant are below the maximum allowable concentration (MAC). This article analyzes the TNT incidence of cataract and changes in the liver under long-term MAC dose.