Hexachlorocyclopentadiene contamination of a municipal wastewater treatment plant

Abstract
In March, 1977, a municipal sewage treatment plant was contaminated with hexachlorocyclopentadiene (HCCPD) and related chlorinated hydrocarbons. Plant workers reported irritation of the skin and eyes, sore throat, cough, chest discomfort, headache, nausea, and fatigue. Symptoms persisted at least six weeks in 5–18% of the workers. Health effects evaluations of 97 workers involved in decontamination procedures showed them to experience similar symptoms; 19% had at least one abnormal liver function test on serial blood testing The airborne levels of HCCPD to which workers were exposed are unknown, but medical and environmental data collected during the decontamination period provides documentation of HCCPD's potential toxicity.

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