2023
Sources of polychlorinated biphenyls (PCBs) in sediments of the East China marginal seas: Role of unintentionally-produced PCBs
YU, Huimin; Tian LIN; Limin HU; Gerhard LAMMEL; Shizhen ZHAO et al.Základní údaje
Originální název
Sources of polychlorinated biphenyls (PCBs) in sediments of the East China marginal seas: Role of unintentionally-produced PCBs
Autoři
YU, Huimin; Tian LIN; Limin HU; Gerhard LAMMEL; Shizhen ZHAO; Xueshi SUN; Xiao WU a Zhigang GUO
Vydání
Environmental Pollution, OXFORD, OXON, ENGLAND, ELSEVIER SCI LTD, 2023, 0269-7491
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 7.600
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/23:00133139
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Polychlorinated biphenyls; Long-range atmospheric transport; Riverine input; East China marginal seas; Unintentionally-produced PCBs
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 22. 1. 2024 19:48, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
The production and use of intentionally-produced polychlorinated biphenyls (PCBs) in China have a short history compared with countries of North America and Europe, where technical PCB mixtures were manufactured in large amounts for decades before being banned. Unintentionally-produced PCB emissions increased dramatically in China, leading to unique profiles of PCB burdens. This study first time evaluated 208 individual PCB congeners at 94 sites from surface sediments of the East China Marginal Seas (ECMSs) and explored their sources. Non-technical PCBs transported from atmospheric transport and river discharge played a dominant role in most areas of the ECMSs, while historical residuals of technical PCBs occupied the fine-grained sediments in muddy areas of the central Yellow Sea (YS), regarding to the low sedimentation rate in the central YS. Furthermore, emissions from Taizhou located on the coast of the East China Sea (ECS), which is an important electronic waste dismantling site in East China, contributed additional technical PCBs to the inner shelf of the ECS. Our results indicate that non-technical PCBs have become the dominant PCB species in the ECMSs, and emphasize the synergistic effects of large riverine input, long-range atmospheric transport, and muddy shelf deposition on PCB source and sink of in marginal seas.