US EPA

2168362 

Journal Article 

DDT AND PCB IN HERRING AND COD FROM BALTIC, KATTEGAT AND SKAGERRAK 

Jensen, S; Johnels, AG; Olsson, M; OTTERLIN.G 

1973 

1 

Oikos
ISSN: 0030-1299
EISSN: 1600-0706 

PESTAB/75/0541 

Suppl 

Suppl. 

230-231 

WOS:A1973T486400039 

PESTAB. DDT and polychlorinated biphenyl pollution has been studied in Swedish waters. The highest levels of DDT substances in herring occurred in the central southern part of the Baltic, 6. 3-250 ppm in extractable fat in 267 analyses, with the mean level about 47 ppm (2 ppm on fresh tissue basis). In the northern Baltic Sea, levels in 201 analyses were 1. 8-66 ppm, mean about 13 ppm (0. 5 ppm in fresh tissue). West of Bornholm, levels in 70 analyses were 1. 6-66 ppm, mean level about 18 ppm, and off the Swedish west coast 86 analyses gave 0. 5-22 ppm with a mean level about 3 ppm. Polychlorinated biphenyl contamination was about the same in the central southern part of the Baltic as in the northern part. Levels in extractable fat in 468 analyses were 1. 8-110 ppm, mean level about 16 ppm (in fresh tissue about 0. 3 ppm). In cod mean levels of both DDT and polychlorinated biphenyl residues are lower in extractable fat of the musculature. However, high levels were noted in cod liver, 19-64 ppm for DDT compounds. Effects due to migratory and feeding habits and due to the age of the fish itself are discussed.