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2180093 
Journal Article 
PCB residues in plankton and sediment in the southwestern coast of Finland 
Linko, RR; Raniamaki, P; Urpo, K 
1974 
Yes 
Bulletin of Environmental Contamination and Toxicology
ISSN: 0007-4861
EISSN: 1432-0800 
12 
6 
733-738 
English 
4218122 
WOS:A1974V160500019 
PESTAB. Plankton specimens were collected from the Turku Archipelago off the southwestern coast of Finland in the summer and autumn of 1972 and 1973. The frozen samples were partially thawed and the fat extracted and subjected to GLC analysis for pesticide residues. The plankton contained relatively high concentrations of PCBs (average 0. 19 ppm on a wet weight basis and 25 ppm on a lipid basis); the concentrations were similar to those in fish from the same region. Plankton collected by surface catching tended to have lower PCB values than those taken by depth catching. Sources of PCB pollution in the Turku Archipelago may be local input from ships and boats as well as sewage sludge. 
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