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3 调查结果3.3 有毒作业场所调查结果作业场所有毒物质调查,涉及9个工程局的洞内开挖、电焊、化学灌浆、喷漆、炼胶、涂料配制等21种类型的42个有毒作业场所,按调查项目分类测试为124次,其中现场调查(测试)为111次,约占90%.分别测定一氧化碳、氮气化物、二氧化硫、硫化氢、苯、甲苯、二甲苯、钙、铅、镍、锌、氨、氢气化物、三硝基甲苯、酚、甲醛等17种有毒物质.监测数据详见附件《水电系统作业场所粉尘、噪声和有毒物质调查数据汇总表》.调查结果按所属部分工程和有毒作业种类分别列表统计如下.
3 Findings 3.3 Survey Results of Toxic Workplaces The survey on toxic substances in the work site involved 42 poisonous workplaces in 21 types, including excavation, welding, chemical grouting, paint spraying, rubber mixing and paint preparation of 9 engineering bureaus The classification of the surveyed items was 124 times, of which 111 were spot-tested (testing), accounting for about 90% .Carbon monoxide, nitrous oxide, sulfur dioxide, hydrogen sulfide, benzene, toluene, xylene, calcium, lead, nickel, Ammonia, hydrogen compounds, trinitrotoluene, phenol, formaldehyde and other 17 kinds of toxic substances.Monitoring data can be found in the attached “Summary of Survey Data of Dust, Noise and Toxic Substances in Workplaces of Hydropower Systems” Survey Results According to the part of the project and toxic work Category list statistics are as follows.