Jeng M S, Jeng W L, Hung T C, Yeh C Y, Tseng R J, Meng P J, Han B C
Institute of Zoology, Academia Sinica, Taipei, Taiwan.
Environ Pollut. 2000 Nov;110(2):207-15. doi: 10.1016/s0269-7491(99)00304-8.
This study presents the distribution of Cu, Zn, Pb, Cd, Hg and As in various marine organisms collected along the western coast of Taiwan from 1991 to 1998, and also evaluates the time variation of Cu in oysters before (1980-85) and after (1986-98) the "green oyster" incident. The results show that relatively high geometric mean (GM) concentrations of Cu, Zn, Pb, Cd, As and Hg were generally found in Crassostrea gigas (Cu=229 microg/g, Zn=783 microg/g), Gomphina aeguialtera (Pb=30.3 microg/g), Tegillarca granosa (Cd=2.85 microg/g), Thais clavigera (As=96.9 microg/g) and Parapenaeopsis cornuta (Hg=1.35 microg/g), respectively. Especially, maximum Cu and Zn concentrations (GM=229 and 783 microg/g, respectively) in oysters (C. gigas) from different culture areas were much higher than those of the other organisms by about 1.13-458 and 2.40-63.7 times, respectively. Similarly, rock-shells (Thais clavigera) had a high capacity for accumulating Cu (GM=202 microg/g) and Zn (GM=326 microg/g) under the same physico-chemical conditions. The highest GM Cu and Zn concentrations of 1108 (range from 113 to 2806) and 1567 (range from 303 to 3593) microg/g were obtained in oysters from the Hsiangshan coastal area, one of the most important oyster culture areas in Taiwan. However, the highest GM Cd and As concentrations of 6.82 and 19.3 microg/g were found in oysters from the Machu Islands. Mean Cu concentrations in the oysters from the Erhjin Chi estuary declined from 2194+/-212 microg/g in 1986-90 to 545 microg/g (GM) in 1991-96. In the Hsiganshan area, GM Cu concentrations of 909 microg/g (1991-96) and 1351 microg/g (1997-98) in oysters were significantly higher than those of 201 microg/g (1980-85) and 682 microg/g (1986-90). The gradually increasing levels of Cu and Zn in the oysters from the Hsiangshan area have been observed year by year.
本研究呈现了1991年至1998年期间在台湾西海岸采集的各种海洋生物中铜（Cu）、锌（Zn）、铅（Pb）、镉（Cd）、汞（Hg）和砷（As）的分布情况，并且评估了在“绿牡蛎”事件之前（1980 - 1985年）和之后（1986 - 1998年）牡蛎中铜的时间变化。结果表明，在长牡蛎（Cu = 229微克/克，Zn = 783微克/克）、等边浅蛤（Pb = 30.3微克/克）、泥蚶（Cd = 2.85微克/克）、疣荔枝螺（As = 96.9微克/克）和角对虾（Hg = 1.35微克/克）中，通常分别发现相对较高的铜、锌、铅、镉、砷和汞的几何平均（GM）浓度。特别是，不同养殖区域的牡蛎（长牡蛎）中铜和锌的最高浓度（GM分别为229和783微克/克）比其他生物的浓度分别高出约1.13 - 458倍和2.40 - 63.7倍。同样，在相同的物理化学条件下，荔枝螺对铜（GM = 202微克/克）和锌（GM = 326微克/克）具有较高的积累能力。在台湾最重要的牡蛎养殖区之一的香山沿海地区的牡蛎中，获得了最高的GM铜和锌浓度，分别为1108（范围为113至2806）和1567（范围为303至3593）微克/克。然而，在马祖列岛的牡蛎中发现了最高的GM镉和砷浓度，分别为6.82和19.3微克/克。二仁溪河口的牡蛎中铜的平均浓度从1986 - 1990年的2194±212微克/克下降到1991 - 1996年的545微克/克（GM）。在溪墘山地区，牡蛎中GM铜浓度在1991 - 1996年为909微克/克，在1997 - 1998年为1351微克/克，显著高于1980 - 1985年的201微克/克和1986 - 1990年的682微克/克。逐年观察到香山地区牡蛎中铜和锌的含量逐渐增加。
