ISBN 978-1-927797-38-9 ISSN 1198-273X PICES SCIENTIFIC REPORT No. 56, 2020 Report of Working Group 31 on Emerging Topics in Marine Pollution PICES Scientific Report No. 56 2020 Report of Working Group 31 on Emerging Topics in Marine Pollution Edited by Juan José Alava, Olga N. Lukyanova, Peter S. Ross and Won Joon Shim February 2020 North Pacific Marine Science Organization (PICES) P.O. Box 6000, Sidney, BC, V8L 4B2, Canada www.pices.int PICES Scientific Reports Published since 1993, the PICES Scientific Report series includes final reports of PICES expert groups, proceedings of PICES workshops, data reports and reports of planning activities. Formal peer reviews of the scientific content of these publications are not generally conducted. PICES Scientific Reports can be found at: https://meetings.pices.int/publications/scientific-reports This report was developed under the guidance of the PICES Science Board and its Marine Environmental Quality Committee. The views expressed in this report are those of participating scientists under their responsibilities. Front cover From top: Killer whales (Orcinus orca) offshore from a pulp mill, Strait of Georgia (Photo credit: Dr. Lance Barrett-Lennard, Ocean Wise/Vancouver Aquarium); Steller sea lion (Eumetopias jubatus) entangled in netting gear in Baynes Sound, Strait of Georgia (Photo credit: courtesy of Denman Island resident, Association of Denman Island Marine Stewards-ADIMS); marine debris accumulation after the passing of a typhoon, Osaka Bay (Photo credit: Dr. Hideaki Maki, NIES); Kobe University T/S Fukae-maru undergoing antifouling procedure (Photo credit: Dr. Yohiji Yano, Kobe University). This document should be cited as follows: Alava, J.J., Lukyanova, O.N., Ross, P.S. and Shim, W.J. (Eds.) 2020. Report of Working Group 31 on Emerging Topics in Marine Pollution. PICES Sci. Rep. No. 56, 161 pp. Table of Contents In Memoriam .......................................................................................................................................... vii Executive Summary .................................................................................................................................ix Preamble .................................................................................................................................................... 1 1 Canada 1.1 Temporal trends for PCBs and PBDEs in harbour seals (Phoca vitulina) from British Columbia, Canada: 1984–2014 Juan José Alava, Marie Noel and Peter S. Ross ........................................................................ 7 1.2 Trends of brominated flame retardants in marine birds from the Pacific coast of Canada: 1990–2015 John E. Elliott, Aroha A. Miller, Kyle H. Elliott and Sandi Lee .............................................. 10 1.3 Recent trends in perfluoralkyl substances in marine birds from the Pacific coast of Canada: (1990–2011) Aroha A. Miller, John E. Elliott, Kyle H. Elliott and Sandi Lee .............................................. 15 1.4 Temporal trends for mercury in aquatic bird eggs from the Pacific coast of Canada (1968–2015) Kyle H. Elliott, John E. Elliott, Aroha A. Miller and Sandi Lee .............................................. 20 1.5 Historical mercury trends in sediments from coastal British Columbia, Canada Juan José Alava and Marie Noel ............................................................................................. 25 1.6 Temporal trends of marine contamination by copper in British Columbia, Canada: The legacy of the Britannia Mine Juan José Alava, Karin Bodtker, Jennifer Chapman, Amber Dearden and Aroha Miller ....... 28 1.7 Assessment of marine debris pollution in the marine-coastal region of British Columbia, Canada Kate Le Souef and Juan José Alava ......................................................................................... 33 1.8 Spatial assessment of microplastic pollution in the marine-coastal region of British Columbia, Canada Juan José Alava, Alejandra Díaz, Ellika Crichton, Esther Gies, Marie Noel and Peter S. Ross ..................................................................................................................... 36 2 China 2.1 Polychlorinated biphenyls (PCBs) in the marine environment of the China coast Peng Zhang, Ying Bian, Chuanli Huo and Guangshui Na ....................................................... 39 2.2 Organochlorine pesticides (OCPs) in the marine environment of the China coast .................. 42 Peng Zhang, Ying Bian, Chuanlin Huo and Guangshui Na ..................................................... 42 2.3 Polybrominated diphenyl ether (PBDE) flame retardants in the marine environment of the China coast Xindong Ma, Chuanlin Huo and Guangshui Na ...................................................................... 45 PICES Scientific Report No. 56 iii 2.4 Perfluorinated compounds (PFCs) in the marine environment of the China coast Yao Yao, Ruijing Li, Chuanlin Huo and Guangshui Na .......................................................... 48 2.5 Polycyclic aromatic hydrocarbons (PAHs) in the marine environment of the China coast Zhen Wang, Chuanlin Huo and Guangshui Na........................................................................ 51 3 Japan 3.1 Temporal trends of PCB concentrations in mussels around the Japanese coast Kazuhiko Mochida and Hiroyuki Tanaka ................................................................................ 54 3.2 Temporal and spatial trends of PCBs in coastal-marine sediments and seawater in Japan Kazuhiko Mochida and Hiroyuki Tanaka ................................................................................ 56 3.3 Current status of marine pollution by antifouling biocides in Japan Kazuhiko Mochida ................................................................................................................... 59 3.4 Distribution and temporal trends of mercury in sediments from coastal seas around Japan Hideaki Maki ............................................................................................................................ 62 4 Republic of Korea 4.1 Accumulation and temporal trends of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs) in finless porpoises (Neophocaena asiaeorientalis) in the Republic of Korea Hyo-Bang Moon ....................................................................................................................... 66 4.2 Accumulation and temporal trends of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDFs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in finless porpoises in the Republic of Korea Hyo-Bang Moon ....................................................................................................................... 69 4.3 Contamination status and temporal trends of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDFs) in sediments and bivalves from coastal areas in the Republic of Korea Hyo-Bang Moon and Minkyu Choi .......................................................................................... 72 4.4 Contamination status and temporal trends of polycyclic aromatic hydrocarbons (PAHs) in sediments and bivalves from coastal areas in the Republic of Korea Hyo-Bang Moon and Minkyu Choi .......................................................................................... 75 4.5 Temporal trends of antifouling biocides (Butyltins) in rock shells (Thais clavigera) and finless porpoises (Neophocaena asiaeorientalis) in the Republic of Korea Minkyu Choi and Hyo-Bang Moon .......................................................................................... 78 4.6 Contamination status and temporal trends of antifouling biocides (TBT, Diuron and Irgarol) in coastal areas in the Republic of Korea Minkyu Choi, Byoung Seok Yoon and Won Joon Shim ............................................................ 82 4.7 Contamination status and temporal trends of mercury (Hg) in mussels (Mytilus edulis) and oysters (Crassostrea gigas) from coastal areas in the Republic of Korea Dong-Woon Hwang and Yong-Woo Lee .................................................................................. 85 4.8 Contamination status and temporal trends of mercury (Hg) in sediments from coastal areas in the Republic of Korea Dong-Woon Hwang and Yong-Woo Lee .................................................................................. 88 4.9 Contamination status and temporal trends of lead (Pb) in mussels (Mytilus edulis) and oysters (Crassostrea gigas) from coastal areas in the Republic of Korea Dong-Woon Hwang and Yong-Woo Lee .................................................................................. 90 iv PICES Scientific Report No. 56 4.10 Contamination status and temporal trends of lead (Pb) in sediments from coastal areas in the Republic of Korea Dong-Woon Hwang and Yong-Woo Lee .................................................................................. 92 4.11 Contamination status and temporal trends of marine debris at beaches in the Republic of Korea Sunwook Hong and Won Joon Shim ........................................................................................ 94 5 Russia 5.1 The human impact on the mercury accumulation in modern sediments of Amur Bay (the Sea of Japan) Kirill Aksentov ......................................................................................................................... 96 5.2 Inter-annual dynamics of Pb concentrations in bottom sediments