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梅山焦化厂年产焦炭90万吨,并炼制苯、甲苯、二甲苯等二十多种化工产品。是1969年新建厂,建厂中虽比较重视劳动和环境保护,但仍有部分有害气体污染环境。为此,我们与有关单位一起,在1977～1980年对该厂苯类气体污染情况进行了调查。 调查是以针筒采气,用气相色谱仪分离测定苯、甲苯、二甲苯。包括(1)污染源调查:各生产工段可能有苯类气体逸出的地方全部采样,测定位置在气体逸出口,共310只样品。为了解污染源影响范围,还在其周围加测70个样品。(2)工人呼吸带调查:凡工人经常停留的场所及工人反映气味较大而且要去的地方也全部采样,测定位置在工人呼吸带,共349个样品。(3)外环境调查:在车间外的厂区环境或以大污染源为中心,离开不同距
Meishan Coking Plant with an annual output of 900,000 tons of coke, and refining benzene, toluene, xylene and other 20 kinds of chemical products. It was a new factory built in 1969. Although more attention was paid to labor and environmental protection in the construction of factories, some harmful gases still pollute the environment. To this end, together with the relevant units, we conducted a survey of the benzene gas pollution in the factory from 1977 to 1980. The survey was based on gas cylinder, gas chromatograph separation benzene, toluene, xylene. Including: (1) Investigation of pollution sources: All production sites may have all the samples where benzene gas has escaped, and the measurement locations are at the gas outlet, a total of 310 samples. In order to understand the impact of pollution sources, but also around the test plus 70 samples. (2) Investigation of worker’s breathing zone: All the places where workers often stay and workers reflect the big smell and want to go are all sampled. The measurement area is located in the worker breathing zone, a total of 349 samples. (3) Environmental Surveys: In the factory environment outside the workshop or with a large source of pollution as the center, leaving different distances