The atmospheric transport and pattern of Medium chain chlorinated paraffins at Shergyla Mountain on the Tibetan Plateau of China

2019 ◽  
Vol 245 ◽  
pp. 46-52 ◽  
Author(s):  
Jing Wu ◽  
Dandan Cao ◽  
Wei Gao ◽  
Kun Lv ◽  
Yong Liang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Atmospheric Transport ◽  
The Tibetan Plateau ◽  
Medium Chain ◽  
Chlorinated Paraffins

Short-chain chlorinated paraffins in soils indicate landfills as local sources in the Tibetan Plateau

Chemosphere ◽  
2021 ◽  
Vol 263 ◽  
pp. 128341
Author(s):  
Jun Li ◽  
Liang Xu ◽  
Yihui Zhou ◽  
Ge Yin ◽  
Yan Wu ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Short Chain ◽  
The Tibetan Plateau ◽  
Chlorinated Paraffins ◽  
Local Sources

scholarly journals Occurrence and Spatial Distribution of the Neutral Per-fluoroalkyl Substances, and Cyclic Volatile Methylsiloxanes in Atmosphere of the Tibetan Plateau

2018 ◽  
Author(s):  
Xiaoping Wang ◽  
Jasmin Schuster ◽  
Kevin C. Jones ◽  
Ping Gong
Keyword(s):  
Tibetan Plateau ◽  
Long Range ◽  
Atmospheric Transport ◽  
Grand Canyon ◽  
Capital City ◽  
The Tibetan Plateau ◽  
Transport Channel ◽  
Local Contribution ◽  
Remote Environment ◽  
Global Background

Abstract. Due to their properties of bioaccumulation, toxicity, and long-range atmospheric transport, poly and per-fluoroalkylsubstances (PFASs), and cyclic volatile methyl silxoanes (cVMS) are currently being considered as emerging persistent organic pollutants (POPs) for regulation. To date, there are limited data on PFASs and cVMS in the atmosphere of the Tibetan Plateau (TP), a remote environment which can provide information on global background conditions. Sorbent-impregnated polyurethane foam (SIP) disk passive air samplers were therefore deployed for three months (May to July 2011 and 2013) at 16 locations across the TP. Using previously reported methods for estimating the air volume sampled by SIP disks, the derived atmospheric concentrations ranged as follows: 18–565 ng/m3 for ∑cVMS (including D3, D4, D5, and D6); 65–223 pg/m3 for fluorotelomer alcohols (∑FTOHs); 1.2–12.8 pg/m3 for fluorinated sulfonamides (∑FOSA); and 0.29–1.02 pg/m3 for fluorinated sulfonamidoethanols (∑FOSE). The highest ∑cVMS occurred at Lhasa, the capital city of the TP, indicating the local contribution to the emerging pollutants. Higher levels of ∑FTOHs were observed at sites close to the transport channel of the Yarlung Tsangpo Grand Canyon, indicating possible long-range atmospheric transport (LRAT). Elevated concentrations of shorter-chain volatile PFAS precursors (4 : 2 FTOH and fluorobutane sulfonamidoethanol) were found in most air samples, reflecting the shift in production from long- to short-chain PFASs in Asia. Overall, concentrations of emerging POPs at background sites of the TP were 1–3 orders of magnitude higher than those reported for legacy POPs.

Trophic Dilution of Short-Chain Chlorinated Paraffins in a Plant–Plateau Pika–Eagle Food Chain from the Tibetan Plateau

2019 ◽  
Vol 53 (16) ◽  
pp. 9472-9480 ◽  
Author(s):  
Huijuan Li ◽  
Duo Bu ◽  
Jianjie Fu ◽  
Yan Gao ◽  
Zhiyuan Cong ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Food Chain ◽  
Short Chain ◽  
The Tibetan Plateau ◽  
Plateau Pika ◽  
Chlorinated Paraffins

Atmospheric Transport of Mercury to the Tibetan Plateau

2007 ◽  
Vol 41 (22) ◽  
pp. 7632-7638 ◽  
Author(s):  
Mark Loewen ◽  
Shichang Kang ◽  
Debbie Armstrong ◽  
Qianggong Zhang ◽  
Gregg Tomy ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Atmospheric Transport ◽  
The Tibetan Plateau

scholarly journals Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau

2018 ◽  
Vol 18 (12) ◽  
pp. 8745-8755 ◽  
Author(s):  
Xiaoping Wang ◽  
Jasmin Schuster ◽  
Kevin C. Jones ◽  
Ping Gong
Keyword(s):  
Tibetan Plateau ◽  
Long Range ◽  
Atmospheric Transport ◽  
Grand Canyon ◽  
Capital City ◽  
Perfluoroalkyl Substances ◽  
The Tibetan Plateau ◽  
Transport Channel ◽  
Remote Environment ◽  
Global Background

Abstract. Due to their properties of bioaccumulation, toxicity, and long-range atmospheric transport, polyfluoroalkyl and perfluoroalkyl substances (PFASs) and cyclic volatile methylsiloxanes (cVMSs) are currently being considered as emerging persistent organic pollutants (POPs) for regulation. To date, there are limited data on PFASs and cVMSs in the atmosphere of the Tibetan Plateau (TP), a remote environment which can provide information on global background conditions. Sorbent-impregnated polyurethane foam (SIP) disc passive air samplers were therefore deployed for 3 months (May to July 2011 and 2013) at 16 locations across the TP. Using previously reported methods for estimating the air volume sampled by SIP discs, the derived atmospheric concentrations ranged as follows: 18–565 ng m−3 for ΣcVMS (including D3, D4, D5, and D6); 65–223 pg m−3 for fluorotelomer alcohols (ΣFTOHs); 1.2–12.8 pg m−3 for fluorinated sulfonamides (ΣFOSA); and 0.29–1.02 pg m−3 for fluorinated sulfonamidoethanols (ΣFOSE). The highest ΣcVMS occurred at Lhasa, the capital city of the TP, indicating the local contribution to the emerging pollutants. Higher levels of ΣFTOHs were observed at sites close to the transport channel of the Yarlung Tsangpo Grand Canyon, indicating possible long-range atmospheric transport (LRAT). Elevated concentrations of shorter-chain volatile PFAS precursors (4 : 2 FTOH and fluorobutane sulfonamidoethanol) were found in most air samples, reflecting the shift in production from long- to short-chain PFASs in Asia. Overall, concentrations of emerging POPs at background sites of the TP were 1–3 orders of magnitude higher than those reported for legacy POPs.

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