Contamination sources in Latvia: levels of organochlorines in perch (Perca fluviatilis) from Rivers Daugava and Lielupe

Article Abstract:

Contamination sources and levels of organochlorines in perch (Perca fluviatilis) in the Daugava River and Lielupe River of Latvia are discussed relative to a study dealing with PCBs and the Gulf of Riga of the Baltic Sea. The probable point of origin for PCB contamination in the Lielupe is the Jelgava urban area, and concentrations of organochlorines in Daugava River perch were in the same range as those seen in perch in other areas of the region of the Baltic Sea.

Latvia, Statistical Data Included, Research, Pollution, Riga, Latvia (City), Food chains (Ecology), Food chains, DDT (Insecticide), DDT, Perch, Coastal ecology, Gulf of Riga, Perca

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Hydroxylated PCB metabolites in nonhatched Fulmar eggs from the Faroe Islands

Article Abstract:

A study is conducted to identify polychlorinated biphenylols (OH-PCBs) in Fulmar eggs, to quantify these compounds and to determine any potential transportation of OH-PCBs from the parent bird to the egg. The results demonstrate that OH-PCBs are indeed transferred from the parent bird to the egg and consequently egg predators are exposed to OH-PCBs.

Industrial Organic Chemicals, Polychlorinated Biphenyls, Cyclic Crude and Intermediate Manufacturing, Faeroe Islands, Birds, Bird eggs, Faroe Islands, Metabolites, Ciconiiformes

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Organohalogen substances in muscle, egg and blood from healthy Baltic Salmon (Salmo salar) and Baltic salmon that produced offspring with the M74 syndrome

Article Abstract:

Muscle, egg and blood samples from female sea-run Baltic salmon were studied to determine if neutral and phenol-type organohalogen substances (OHS) were associated with M74 syndrome. Data results showed that M74 syndrome is not induced by OHS. Further study is needed to determine if there is an association between M74 syndrome and phenol type OHS.

Diseases, Fishes, Fish populations, Salmon, Fish population declines

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