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1985～1989年监测结果表明,天津市医院排放污水中,大肠菌群和肠道致病菌污染严重,超标率高达86.5％。
From 1985 to 1989, the monitoring results showed that the contamination of coliform bacteria and enteric pathogens in the sewage discharged from Tianjin hospitals was serious, with the exceeding standard rate as high as 86.5%.