Water Pollution of Abukuma River and its Tributaries by Volatile Chlorinated Compounds.
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概要
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The water samples were taken from 64 sampling stations settled along the Abukuma River and its tributaries, and analyzed to estimate the contamination level by eight volatile chlorinated compounds for three years (1989-1991) .<BR>Trichloroethylene was mainly detected in the upper part of Koriyama in 1989. The maximum level was 2.7μg/l.<BR>Tetrachloroethylene was detected only at several sampling stations, and its maximum concentration was 4.5μg/l.<BR>Large amounts of chloroform were found at many stations (max: 20.5μg/l) . They would be a main volatile compound produced by chlorination of organic substances.<BR>1, 1, 1-Trichloroethane and carbon tetrachloride were also found at many stations, but their levels were very low as compared with chloroform.<BR>Dichlorobromomethane was detected only at one station. Chlorodibromomethane and chloropicrin were not detected at any stations through the examination period of three years.
- 日本環境化学会の論文
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