Koli A K, Williams W R, McClary E B, Wright E L, Burrell T M
Bull Environ Contam Toxicol. 1977 Jan;17(1):82-9. doi: 10.1007/BF01685266.
Samples of fish from freshwater sources of rivers, lakes and ponds all over the state of South Carolina were collected during the Summer of 1974 and 1975. The fish collected were Bass, Bluegill, Redbreast, Catfish, Shad, Carp, Crappie, Mudfish and Pike. Samples were analyzed using the flameless atomic absorption procedure outlined by Hatch and Ott, and Uthe et al as modified for use with Perkin-Elmer, Coleman MAS-50 mercury analyzer. Triplicate samples of fish tissue were analyzed by wet digestion method. The mean mercury levels in ppb were determined for baseline mercury levels. A significant finding of this report is that those species for which fish of widely differing weights were analyzed, larger fish had higher mercury levels. Mercury levels exceeding the U.S. Food and Drug Administration guideline of 500 ppb for fish tissues have been found in the Mudfish from Edisto River and Pike fish from Lake Murray. Higher levels of mercury occurred in the highly vascularized blood tissues of liver and kidney than in muscle. Carnivorous and bottom-feeding fishes are the most reliable indicators of mercury pollution.
1974年和1975年夏季，从南卡罗来纳州各地的河流、湖泊和池塘等淡水水源采集了鱼类样本。采集的鱼类有鲈鱼、蓝鳃太阳鱼、赤鲈、鲶鱼、鲱鱼、鲤鱼、黑鲈、泥鱼和狗鱼。样本采用哈奇和奥特以及乌特等人概述的无火焰原子吸收程序进行分析，并针对珀金埃尔默、科尔曼MAS - 50汞分析仪进行了修改。鱼类组织的三份重复样本采用湿式消化法进行分析。以皮克为单位测定了基线汞含量的平均汞水平。本报告的一个重要发现是，对于分析了体重差异很大的鱼类的那些物种，较大的鱼汞含量更高。在伊迪斯托河的泥鱼和默里湖的狗鱼中发现汞含量超过了美国食品药品监督管理局规定的鱼类组织500皮克的指导标准。肝脏和肾脏高度血管化的血液组织中的汞含量高于肌肉中的汞含量。肉食性和底栖鱼类是汞污染最可靠的指标。
