PCBS;
DDTS;
HCB;
LINDANE;
BIVALVES;
MONITORING;
WESTERN MEDITERRANEAN;
D O I:
10.1016/0045-6535(94)90006-X
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The distributions of organochlorinated pesticides (DDTs, hexachlorobenzene -HCB- and lindane) and polychlorinated biphenyls (PCBs) have been determined in mussels from two bays of the Ebro Delta (Western Mediterranean) during the period 1980-1992. The data obtained enabled us to assess the fate and trends of these compounds in the area. A general decline in concentrations was observed for all organochlorinated pesticides during the studied period, reflecting a positive response to the existing regulations. However, the decline of PCBs was less evident, although a relative decrease of the low chlorinated congeners with time, possibly indicating a lack of recent inputs, was observed.