摘要
本文报道了长江口以南我国沿岸海域经济贝类中各重金属的含量及其分布趋势。结果表明，各种贝类体内Zn的含量总是最高，Hg的含量总是最低。各重金属平均含量一般呈Zn＞Cu＞As≈Cd＞Cr≈Pb＞Hg的排列顺序。该海域牡蛎的Hg、Pb、Cr、As的含量低，区域分布较均匀；Cu、Zn、Cd的含量相差悬殊，以珠海海区牡蛎的Cu、Zn、Cd含量最高，分别为431×10-6～474×106，864×10-6～1044×10-6，7．02×10-6～8．25×10-6（m／m），其主要原因可能是工业排污造成的。本调查牡蛎分布较广，对Cu、Zn、Cd有较强的积累能力，推荐它为我国局部海域海洋污染监测Cu、Zn、Cd的指示生物。
It is reported in this paper that the heavy metal contents of commercial bivalves and that distributed trend of heavy metal contents of oysters in coastal waters south to the Changjiang Estuary. It has shown that content of Zn in the bivalves is the highest and content of Hg is the lowest. The average content of each heavy metal in the bivalves is arranged generally in the order of Zn>Cu > As ≈Cd >Cr≈Pb > Hg. The contents of Hg, Pb, Cr, As in oyster in this coastal waters is well distributed and contents of Cu,Zn,Cd is very much different. The contents of Cu, Zn, Cd in oyster in coastal Zhuhai is the highest. It is 431 × 10-6 ～ 474 ×10-6, 864 ×10-6 ～1044 ×10-6, 7.02 × 10-6～ 8. 75 × 10-6 (m/m ), respectively. The major reason perhaps is the industry pollution. As oysters are widely distributed in the coastal waters and concentrate Cu,Zn,Cd, it is recommended as a indicator of pollution of Cu,Zn,Cd.
出处
《台湾海峡》
CAS
CSCD
1995年第3期262-268,共7页
Journal of Oceanography In Taiwan Strait
