Mercury and selenium levels in 19 species of saltwater fish from New Jersey as a function of species, size, and season.
Mercury and selenium levels in 19 species of saltwater fish from New Jersey as a function of species, size, and season.
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DOI：
10.1016/j.scitotenv.2010.12.034
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发表时间：
2011-03-15
影响因子：
9.8
通讯作者：
Gochfeld, Michael
中科院分区：
文献类型：
--
作者：
Burger, Joanna;Gochfeld, Michael
关于咸水鱼类体内汞含量对生物群和人类的风险的数据很少。本文研究了由休闲渔民在新泽西海岸捕获的19种鱼的肌肉中汞和硒的含量，作为鱼的种类、大小和季节的函数，以及汞对消费者的风险。平均汞含量从0.01 ppm（湿重）（Menhaden Brevoortia tyrannus）到1.83 ppm （Mako Shark Isurus oxyrinchus）不等。汞含量分为四类：非常高（只有灰鲭）、高（平均0.3-0.5 ppm， 3种）、中（0.14-0.20 ppm， 10种）和低（低于0.13 ppm， 5种）。鱼类的平均硒含量范围为0.18 ppm至0.58 ppm，其变异性低于汞（变异系数=38.3 vs 69.1%），符合这种必需元素的稳态调节。汞与硒的相关性有5种呈显著正相关，2种呈显著负相关。汞含量与10种鱼类的大小呈显著正相关。大小是汞含量的最佳预测指标。硒与鱼的长度没有一致的关系。超过一半的鱼类中某些鱼类的汞含量超过0.3 ppm，三分之一的鱼类的汞含量超过0.5 ppm，这对高端消费者构成了人类健康风险。相反，一些鱼类没有个体的汞含量超过0.5 ppm，很少有个体的汞含量超过0.3 ppm，这表明经常吃鱼的人可以通过选择食用哪种鱼类（和大小）来降低汞的风险。总体而言，除了鲨鱼、蓝鳍金枪鱼（Thunnus thynnus）、蓝鱼（Pomatomus saltatrix）和条纹鲈鱼（Morone saxatilis）外，样本物种的汞浓度一般为中至低。除灰鲭鲨外，硒与汞的摩尔比一般在1:1以上。
There are few data on risks to biota and humans from mercury levels in saltwater fish. This paper examines mercury and selenium levels in muscle of 19 species of fish caught by recreational fisherfolk off the New Jersey shore, as a function of species of fish, size, and season, and risk of mercury to consumers. Average mercury levels ranged from 0.01 ppm (wet weight) (Menhaden Brevoortia tyrannus) to 1.83 ppm (Mako Shark Isurus oxyrinchus). There were four categories of mercury levels: very high (only Mako), high (averaging 0.3–0.5 ppm, 3 species), medium (0.14–0.20 ppm, 10 species), and low (below 0.13 ppm, 5 species). Average selenium levels for the fish species ranged from 0.18 ppm to 0.58 ppm, and had lower variability than mercury (coefficient of variation=38.3 vs 69.1%), consistent with homeostatic regulation of this essential element. The correlation between mercury and selenium was significantly positive for five and negative for two species. Mercury levels showed significant positive correlations with fish size for ten species. Size was the best predictor of mercury levels. Selenium showed no consistent relationship to fish length. Over half of the fish species had some individual fish with mercury levels over 0.3 ppm, and a third had fish with levels over 0.5 ppm, levels that pose a human health risk for high end consumers. Conversely several fish species had no individuals above 0.5 ppm, and few above 0.3 ppm, suggesting that people who eat fish frequently, can reduce their risk from mercury by selecting which species (and which size) to consume. Overall, with the exception of shark, Bluefin Tuna (Thunnus thynnus), Bluefish (Pomatomus saltatrix) and Striped Bass (Morone saxatilis), the species sampled are generally medium to low in mercury concentration. Selenium:mercury molar ratios were generally above 1:1, except for the Mako shark.
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影响因子：
7.7
作者：
Brunner, Eric J.;Jones, Peter J. S.;Bartley, Mel
通讯作者：
Bartley, Mel
影响因子：
9.8
作者：
Burger, Joanna;Gochfeld, Michael;Weston, Jim
通讯作者：
Weston, Jim
影响因子：
3.8
作者：
Burger, J;Pflugh, KK;Von Hagen, S
通讯作者：
Von Hagen, S
影响因子：
2.4
作者：
BLOOM, NS
通讯作者：
BLOOM, NS
影响因子：
8.3
作者：
Burger, J
通讯作者：
Burger, J