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本文以苯并（ａ）芘为代表物，对某焦化厂焦炉飘尘进行了七年污染水平追踪调查，并对焦炉操作工进行了全面查体，证明了焦炉飘尘对工人身体确有明显危害。
In this paper, benzo (a) pyrene as a representative of the coke oven fly ash in a coking plant for seven years to follow the pollution level survey, and the coke oven operators conducted a comprehensive examination of the coke oven to prove that the dust on the workers do have physical Obvious harm.