| 松花江鱼类系污染现状研究 |
| 摘要点击 863 全文点击 1342 修订日期：1993-12-24 |
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| 中文关键词 松花江 总汞 甲基汞 污染 鱼类 |
| 英文关键词 the Songhuajiang River total mercury methylmercury contamination fish |
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| 中文摘要 |
| 松花江主要工业汞源根治后,该江吉林市至三岔河口和三岔河口至同江江段总汞与甲基汞已分别降到轻、中度污染水平。各江段鱼类总汞与甲基汞污染水平均表现出:肉食性鱼类>杂食性鱼类>植物食性鱼类;底层鱼类>中、上层鱼类;无鳞鱼类>有鳞鱼类。各江段每种鱼类肌肉中甲基汞含量与总汞含量之间呈明显的正相关关系,与脲酶、乳酸脱氢酶活力之间呈明显的负相关关系。鱼类肌肉中总汞含量与江水中总汞含量之间呈明显的多元直线、多元对数和多元指数回归关系;鱼类肌肉中甲基汞含量与江水中甲基汞含量之间呈明显的多元对数回归关系。 |
| 英文摘要 |
| Since the main industrial sources of mercury discharged into the Songhuajiang River were eliminated eight years ago,the total mercury and methylmercury contaminations in fish from the reaches of the river from Jinn City to Sanchahekou and from Sanchahekou to Tongjiang have been reduced to a light level of contamination and a medium level of contamination, respectively.The average levels of total mercury and methylmercury contaminations in fish from both reaches of the river exhibited:the highest in carnivorous fish, lower in omnivorous fish,and the lowest in herbivorous fish;higher in the underlayer fish than in the medium and upper layer fish;and higher in the scaleless fish than in the scaled fish.In the muscle of each species of fish from both reaches of the river, the level of methylmercury was in a significantly positive correlation with the level of total mercury while being in a significantly negative correlation with the activities of urease and lactate dehydrogenase (LDH). The level of total mercury in the muscle of fish was in a significantly multiple linear, multiple logarithmic or multiple exponential correlation with the level of total mercury in river water.The level of methylmercury in the muscle of fish was in a significantly multiple logarithmic correlation with the level of methylmercury in river water. |
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