Dias Adriana C L, Guimarães Jean R D, Malm Olaf, Costa Paulo A S
Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
Cad Saude Publica. 2008 Sep;24(9):2063-70. doi: 10.1590/s0102-311x2008000900012.
Total mercury (THg) was analyzed in muscle tissue from the blue shark Prionace glauca and the swordfish Xiphias gladius, obtained from the South and Southeast coast of Brazil, to verify compliance with current limits for human consumption. Samples were obtained through the REVIZEE Program and a commercial fishery in Itajaí, Santa Catarina State. A total of 95 specimens were analyzed (48 X. gladius and 47 P. glauca), and correlations were checked between THg and fish length and weight. THg ranged from 0.13 to 2.26 microgg-1 (fresh weight), and there was no significant difference between the means for P. glauca, 0.76 +/- 0.48 microgg-1 (f.w.) and X. gladius, 0.62 +/- 0.31 (Mann-Whitney test, p < 0.05). In 16 % of samples, THg was above the limits set by the National Health Surveillance Agency (ANVISA), namely 1 microgg-1, and 62% exceeded the World Health Organization (WHO) limit of 0.5 microgg-1. The ingestion of 100 g/ day-1 of P. glauca or X. gladius would result in a daily THg intake of more than twice the WHO (1990) suggested limit.
对取自巴西南部和东南部海岸的灰鲭鲨（Prionace glauca）和剑鱼（Xiphias gladius）肌肉组织中的总汞（THg）进行了分析，以验证其是否符合当前人类食用限量标准。样本通过REVIZEE项目以及圣卡塔琳娜州伊塔雅伊的一家商业渔场获得。总共分析了95个样本（48条剑鱼和47条灰鲭鲨），并检查了总汞与鱼的长度和重量之间的相关性。总汞含量范围为0.13至2.26微克/克（鲜重），灰鲭鲨的平均含量为0.76±0.48微克/克（鲜重），剑鱼的平均含量为0.62±0.31微克/克，两者之间无显著差异（曼-惠特尼检验，p<0.05）。在16%的样本中，总汞含量高于国家卫生监督局（ANVISA）设定的1微克/克的限值，62%的样本超过了世界卫生组织（WHO）0.5微克/克的限值。每天摄入100克灰鲭鲨或剑鱼所导致的每日总汞摄入量将超过世界卫生组织（1990年）建议限值的两倍多。
