Three-year monitoring of atmospheric PCBs and PBDEs at the Chinese Great Wall Station, West Antarctica: Levels, chiral signature, environmental behaviors and source implication

Wang, Pu; Li, Yingming; Zhang, Qinghua; Yang, Qinghua; Zhang, Lin; Liu, Fubin; Fu, Jianjie; Wu, Meng; Dou, Wei; Sun, Huizhong; Zheng, Shucheng; Hao, Yanfen; Liang, Yong; Jiang, Guibin

doi:10.1016/j.atmosenv.2016.11.036

Cited by 74 publications

(42 citation statements)

References 53 publications

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“…PCB concentrations in Chinese air are often found to be comparable with regions with intensive historical manufacture and usage of PCBs, such as Japan, Korea and the USA. 11,18,47 Levels are much higher than observations in King George Island 48 and the Group of Latin American and Caribbean (GRULAC) countries. 22 Several urban sites had high levels of PCBs, e.g.…”

Section: /29mentioning

confidence: 73%

“…This is much higher than the ~15% in Chicago in 2007, 21 but lower than the ~79% reported in Antarctica. 48 The concentration of PCB-11 averaged 35±33 pg/m 3 (<MDL-249 pg/m 3 ) and was higher in summer, due to the relatively high volatility of di-CBs and suggested volatilization from surfaces to which it had been applied. 62 The ranking of PCB 11 levels in the various categories of sampling sites is in order of industry > rural > urban > remote, indicating it is positively related to human activities.…”

Section: Comments On Pigment-relevant Congenersmentioning

confidence: 99%

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Evidence for Major Contributions of Unintentionally Produced PCBs in the Air of China: Implications for the National Source Inventory

Zhao

Jones

et al. 2019

Environ. Sci. Technol.

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Polychlorinated biphenyls (PCBs) were not widely manufactured or used in China before they became the subject of international bans on production. Recent work has shown they have reached China associated with imported wastes, and that there are considerable unintentional sources of PCBs that have only recently been identified. As such, it was hypothesised that the source inventory and profile of PCBs may be different or unique in China, compared to countries where they were widely used and which have been widely studied. For the first time in this study we therefore undertook a complete analysis of 209 PCB congeners and assessed the contribution of unintentionally-produced PCBs (UP-PCBs) in the atmosphere of China, using polyurethane foam passive air samplers (PUF-PAS) deployed across a wide range of Chinese locations. ∑209 PCBs ranged from 9 to 6856 pg/m 3 (median: 95 pg/m 3 ) during three deployments in 2016-2017. PCB 11 was one of the most detected congeners, contributing 33±19% to ∑209 PCBs. The main sources to airborne PCBs in China were estimated and ranked as pigment/painting (34%), metallurgical industry/combustion (31%), e-waste (23%) and petrochemical/plastic industry (6%). For typical Aroclor-PCBs, e-waste source dominated (>50%). Results from our study indicate that UP-PCBs have become the controlling source in the atmosphere of China and an effective control strategy is urgently needed to mitigate emissions from multiple industrial sources.

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Section: /29mentioning

confidence: 73%

Section: Comments On Pigment-relevant Congenersmentioning

confidence: 99%

Evidence for Major Contributions of Unintentionally Produced PCBs in the Air of China: Implications for the National Source Inventory

Zhao

Jones

et al. 2019

Environ. Sci. Technol.

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“…HCB和HCHs在南极大气中分布比较均匀, HCB在东南极洲罗斯海海岸 [87] 大气中浓度平均值为22.9 pg/m 3 , Wilkes站附近 [84] 为12.6 pg/m 3 , 西南极洲Palmer站附近 [96] 为33.8 pg/m 3 , 与Liu等 [27] 产品. 一方面张庆华等 [10] 的研究发现PCB-11与PCB-28、-52等传统PCBs季节变化趋势相反, 说明PCB-11 可能具有与传统PCBs不同的污染来源; 另一方面, Khairy等 [96] 的研究发现南极大气中可降解为PCB-11…”

Section: 西南极洲与南美洲等大陆距离较近与东南极洲研究unclassified

“…PBDEs的水平无显著的下降趋势, 但是低氯代PCBs和低溴代PBDEs单体在2011~2012年间呈下降趋势, 这可能与2012年降雪量较大有关 [10] . 南极大气中PBDEs -100、-153、-154、-183、-206、-207等均有检出, 这也是该区域大气中PBDEs赋存的首次报道 [51] .…”

Section: 年1月~2014年1月三年间大气中的Pcbs和unclassified

Progress on the passive air sampling techniques and occurrence of persistent organic pollutants in remote areas

Zhang

Wang

et al. 2018

Sci. Sin.-Chim

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“…Pristine regions with temperature-driven evaporation/deposition are prone to the enrichment of POPs through global fractionation and cold condensation 4 , 5 . Several studies in high latitude regions, including the Arctic 6 – 8 and the Antarctic 9 – 11 , revealed the widespread distribution of these chemicals. Similar to the “cold condensation” occurring in high latitude regions, POPs can be enriched in high-altitude areas by mountain cold-trapping.…”

Section: Introductionmentioning

confidence: 99%

Altitudinal dependence of PCBs and PBDEs in soil along the two sides of Mt. Sygera, southeastern Tibetan Plateau

Wang

Yang

et al. 2018

Sci Rep

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Surface soil samples were collected from Mt. Sygera in the southeast of Tibetan Plateau to investigate the altitudinal distribution of PCBs and PBDEs along the two sides of the mountain. The average concentrations of PCBs and PBDEs were 177 pg g−1 dw and 15 pg g−1 dw, respectively. The relationships between the log-transformed TOC-normalized concentrations and the altitudes showed different trends on the two sides. On the windward side, there was a positive correlation for the heavier PCBs; while on the leeward side, the concentrations increased and then decreased for PCBs and PBDEs at the altitude of 4100–4200 m, corresponding to the change in vegetation. The observed discrepancy on the two sides of the mountain demonstrated different key factors associated with precipitation and the forest canopy. Additionally, values of windward-leeward Enrichment Factors (W/L EFs) for the heavier PCB congeners (PCB-138, 153, and -180) were an order of magnitude higher in sites above 4200 m, which also suggested that vegetation played an important role in the altitudinal accumulation of POPs in soil. This is one of the very few studies that have revealed the differences in altitudinal accumulation of POPs along the two sides of a mountain.

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Three-year monitoring of atmospheric PCBs and PBDEs at the Chinese Great Wall Station, West Antarctica: Levels, chiral signature, environmental behaviors and source implication

Cited by 74 publications

References 53 publications

Evidence for Major Contributions of Unintentionally Produced PCBs in the Air of China: Implications for the National Source Inventory

Evidence for Major Contributions of Unintentionally Produced PCBs in the Air of China: Implications for the National Source Inventory

Progress on the passive air sampling techniques and occurrence of persistent organic pollutants in remote areas

Altitudinal dependence of PCBs and PBDEs in soil along the two sides of Mt. Sygera, southeastern Tibetan Plateau

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