Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in Pacific salmon from the Kamchatka Peninsula and Sakhalin Island, Northwest Pacific

Mar Pollut Bull. 2021 Aug:169:112498. doi: 10.1016/j.marpolbul.2021.112498. Epub 2021 May 21.

Abstract

The purpose of the present study was to determine levels of POPs (dieldrin, endrin, HCH isomers, DDT metabolites, and PCB congeners) in organs of chum (Oncorhynchus keta), pink (O. gorbuscha), sockeye (O. nerka), masu (O. masou), and Chinook salmon (O. tshawytscha), and to identify the patterns of toxicants' distribution in organisms and the environment of the northwestern Pacific. Principal component factor analysis showed that all the salmon species typically exhibit relationships between the PCB congeners and are characterized by a similar pattern of entry of PCBs 101, 118, and 153. The OCPs levels in the organs of Pacific salmon are decreasing from 2012 to 2018, which suggests the elimination of these toxicants from the northwestern Pacific Ocean.

Keywords: Kamchatka Peninsula; OCPs; PCBs; Pacific salmon; Sakhalin Island.

MeSH terms

  • Animals
  • Hydrocarbons, Chlorinated* / analysis
  • Pacific Ocean
  • Pesticides* / analysis
  • Polychlorinated Biphenyls* / analysis
  • Salmon

Substances

  • Hydrocarbons, Chlorinated
  • Pesticides
  • Polychlorinated Biphenyls