Biomagnification of persistent organic pollutants along a high-altitude aquatic food chain in the Tibetan Plateau: Processes and mechanisms

Ren, Juanjuan; Wang, Xiaoping; Wang, Chuanfei; Gong, Ping; Wang, Xiruo; Yao, Tandong

doi:10.1016/j.envpol.2016.10.019

Cited by 74 publications

(21 citation statements)

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“…In addition to the Arctic and Antarctic, the Tibetan Plateau (TP) is often referred to as the "third pole", isolated in the mid-latitude Northern Hemisphere with a harsh environment and high elevation. The transport (Sheng et al, 2013), distribution (Wang et al, , 2016b, and bioaccumulation (Ren et al, 2016) of legacy POPs in the Tibetan environment have already been investigated; however, there is still a gap in knowledge regarding the distribution of emerging organic contaminants, such as PFASs and cVMSs.…”

Section: Introductionmentioning

confidence: 99%

“…Persistent organic pollutants (POPs) have attracted significant attention due to their wide distribution in the environment and high toxicity to humans and wildlife (Hung et al, 2016a, b;Magulova and Priceputu, 2016;Rigét et al, 2010). In the first stage, the Stockholm Convention included 12 POPs normally considered the legacy POPs (Rigét et al, 2010), including dichlorodiphenyltrichloroethane (DDT), hexachlorobenzene (HCB), and hexachlorocyclohexanes (HCHs).…”

Section: Introductionmentioning

confidence: 99%

“…In the first stage, the Stockholm Convention included 12 POPs normally considered the legacy POPs (Rigét et al, 2010), including dichlorodiphenyltrichloroethane (DDT), hexachlorobenzene (HCB), and hexachlorocyclohexanes (HCHs). With the prohibition of these legacy POPs, their levels in the environment have largely deceased (Hung et al, 2016a, b).…”

Section: Introductionmentioning

confidence: 99%

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

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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 cVMS (including D3, D4, D5, and D6); 65-223 pg m −3 for fluorotelomer alcohols ( FTOHs); 1.2-12.8 pg m −3 for fluorinated sulfonamides ( FOSA); and 0.29-1.02 pg m −3 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.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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Section: Introductionmentioning

confidence: 99%

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Wang¹

2018

Preprint

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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 cVMS (including D3, D4, D5, and D6); 65-223 pg m −3 for fluorotelomer alcohols ( FTOHs); 1.2-12.8 pg m −3 for fluorinated sulfonamides ( FOSA); and 0.29-1.02 pg m −3 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.

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“…Rather, through their hydrophobicity, they tend to sorb to organic carbon and lipid phases in the environment and biota, respectively, thus bioaccumulating and biomagnifying in the food chain. 12,13 The second broad class consists of hydrophilic and moderately hydrophobic compounds (hereafter "HMHCs"). Most of these compounds are also known as contaminants of emerging concern (CEC) or emerging pollutants.…”

Section: Public Abstractmentioning

confidence: 99%

Nanofiber-enabled multi-target passive sampling device for legacy and emerging organic contaminants

Qian¹

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ii To my family, Thanks for your love and encouragement. iii ACKNOWLEDGMENTS First of all, I would like to express my deepest gratitude to my advisor, Professor David Cwiertny, for his encouragement, patience, and careful guidance through my Ph.D. study. He shows me an example what a great scientist should look like and teach me how to think more logically and keep moving forward. I really appreciate he took me as his student and gave a chance to work with him. I would also like to thank Dr. Andres Martinez for all his guidance on my research project. He is always willing to share his experience and listen to my thoughts. He patiently taught the knowledge of sampling methods and made me feel comfortable in this project. Without his help, I cannot complete my research tasks smoothly.To my previous and current lab mates,

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Biomagnification of persistent organic pollutants along a high-altitude aquatic food chain in the Tibetan Plateau: Processes and mechanisms

Cited by 74 publications

References 54 publications

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

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

response to the comments

Nanofiber-enabled multi-target passive sampling device for legacy and emerging organic contaminants

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