Temporal Trends and Pattern Changes of Short- and Medium-Chain Chlorinated Paraffins in Marine Mammals from the South China Sea over the Past Decade

Environmental Science & Technology
Lixi ZengPaul K S Lam

Abstract

Temporal trends of short- (SCCPs) and medium-chain chlorinated paraffins (MCCPs) were examined in blubber samples of 50 finless porpoises (Neophocaena phocaenoides) and 25 Indo-Pacific humpback dolphins (Sousa chinensis) collected from the South China Sea between 2004 and 2014. Elevated levels of SCCPs and MCCPs were detected in all blubber samples of both cetacean species. Concentrations of SCCPs ranged from 280 to 3900 ng·g(-1) dry weight (dw) in porpoises and from 430 to 9100 ng·g(-1) dw in dolphins, while concentrations of MCCPs ranged from 320 to 8600 ng·g(-1) dw in porpoises and from 530 to 23 000 ng·g(-1) dw in dolphins. Significantly higher concentrations were present in dolphins than porpoises due to their exposure levels in their living habitats. Strongly linear correlations existed between SCCPs and MCCPs, but there were no significant concentration differences between the genders of the two cetacean species in the same sampling year. Significantly temporal increasing trends of ∑SCCPs and ∑MCCPs have been observed in both porpoise and dolphin samples over the past decade, which reflect the influence of histories of production and usage on the bioaccumulation of CPs in marine mammals in China. An apparent temporal shi...Continue Reading

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Citations

Mar 10, 2016·The Science of the Total Environment·Yihui ZhouÅke Bergman
Feb 22, 2017·Environmental Science & Technology·Sicco H BrandsmaChristian Bogdal
Oct 20, 2018·Rapid Communications in Mass Spectrometry : RCM·Jannik Sprengel, Walter Vetter
Mar 29, 2018·Environmental Science and Pollution Research International·Roland WeberKarlheinz Ballschmiter
Sep 3, 2020·EFSA Journal·UNKNOWN EFSA Panel on Contaminants in the Food Chain (CONTAM)Elsa Nielsen
Jun 19, 2021·Environmental Science & Technology·Jing LiPaul K S Lam
May 18, 2019·Environmental Science & Technology·Yanlin LiGuibin Jiang
Nov 21, 2017·Environmental Science & Technology·Bo YuanCynthia A de Wit
May 24, 2018·Environmental Science & Technology·Juliane GlügeChristian Bogdal
Feb 27, 2020·Environmental Science & Technology·Yihui ZhouÅke Bergman

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