Bosnir J, Puntarić D, Smit Z, Capuder Z
Zagreb Institute of Public Health, Mirogojska c. 16, 10000 Zagreb, Croatia.
Croat Med J. 1999 Dec;40(4):546-9.
To compare the total and organic mercury content in sea-fish samples from Croatia, where fishing occurs in a closed part of the Mediterranean Sea, and from other countries fishing mostly in the oceans.
During 1997, we collected at the Zagreb fish market a total of 115 samples of fifteen kinds of fish including bathypelagic, pelagic and elasmobranch fish, caught in the wider coastal areas of Netherlands, Germany, Spain, Argentina, Belgium, and Croatia. Total mercury and organic methyl-mercury in the fish were determined at the laboratory for testing of food and other common use material at the Zagreb Institute of Public Health. Total mercury was determined by the method of atomic absorption spectrometry. Methyl-mercury was determined by the method of gas chromatography. The mean annual fish consumption in each country was used to calculate the mean weekly intake of mercury and methyl-mercury in each individual country relative to the recommended values.
The mean content of total mercury and organic mercury in pooled samples was 111+100 ug/kg and 95+87 ug/kg (85.6%), respectively. The highest values were found in the fish from Croatia (170+124 ug/kg and 150+107 ug/kg; 88.2%, respectively). This concentration did not exceed the maximal allowed level of 500 ug/kg for total and 400 ug/kg for organic mercury in any of the samples examined. The highest values of total mercury (119+111 ug/kg) and organic mercury (103+96 ug/kg; 86.6%) were found in bathypelagic fish. According to the mean annual per capita fish consumption in each country, the mean weekly mercury intake was highest in Spain (49.8 ug) and lowest in Croatia (19.0 ug.
At present conditions of mercury content and its mean annual consumption, dietary use of sea-fish can still be recommended, even from the seas with closed circulation, such as Adriatic.
比较克罗地亚（其渔业活动在地中海的一个封闭区域进行）与主要在大洋捕鱼的其他国家的海鱼样本中的总汞和有机汞含量。
1997年期间，我们在萨格勒布鱼市收集了总共115份15种鱼类的样本，这些鱼包括深海鱼类、中上层鱼类和软骨鱼类，捕获于荷兰、德国、西班牙、阿根廷、比利时和克罗地亚的更广阔沿海区域。鱼中的总汞和有机甲基汞在萨格勒布公共卫生研究所的食品及其他常用材料检测实验室进行测定。总汞通过原子吸收光谱法测定。甲基汞通过气相色谱法测定。每个国家的年人均鱼类消费量用于计算每个国家相对于推荐值的每人每周汞和甲基汞摄入量。
混合样本中总汞和有机汞的平均含量分别为111±100微克/千克和95±87微克/千克（85.6%）。克罗地亚的鱼中含量最高（分别为170±124微克/千克和150±107微克/千克；88.2%）。在所检测的任何样本中，该浓度均未超过总汞500微克/千克和有机汞400微克/千克的最大允许水平。深海鱼类中的总汞（119±111微克/千克）和有机汞（103±96微克/千克；86.6%）含量最高。根据每个国家的年人均鱼类消费量，西班牙的每人每周汞摄入量最高（49.8微克），克罗地亚最低（19.0微克）。
在目前汞含量及其年平均消费量的情况下，即使是来自亚得里亚海等封闭环流海域的海鱼，仍可推荐用于饮食。
