Search Results - "Yeung, Leo WY"

Fluorine mass balance analysis of selected environmental samples from Norway by Aro, Rudolf, Carlsson, Pernilla, Vogelsang, Christian, Kärrman, Anna, Yeung, Leo WY

“…The presence of unidentified organofluorine compounds (UOF) has been investigated in recent publication, but their environmental occurrence is still poorly…”
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Nontargeted Identification and Temporal Trends of Per- and Polyfluoroalkyl Substances in a Fluorochemical Industrial Zone and Adjacent Taihu Lake by Yao, Jingzhi, Sheng, Nan, Guo, Yong, Yeung, Leo W.Y., Dai, Jiayin, Pan, Yitao

“…Various per- and polyfluoroalkyl substances (PFASs) remain undiscovered and unexplored in the environment. The goals of this study were to discover new species…”
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Occurrence and Fate of Fluoroalkyl Sulfonamide-Based Copolymers in Earthworms–Bioavailability, Transformation, and Potential Impact of Sludge Application by Fredriksson, Felicia, Kärrman, Anna, Eriksson, Ulrika, Yeung, Leo WY

“…To date, considerable knowledge and data gaps regarding the occurrence, environmental levels, and fate of polymeric perfluoroalkyl and polyfluoroalkyl…”
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Novel Chlorinated Polyfluorinated Ether Sulfonates and Legacy Per-/Polyfluoroalkyl Substances: Placental Transfer and Relationship with Serum Albumin and Glomerular Filtration Rate by Pan, Yitao, Zhu, Yingshuang, Zheng, Tongzhang, Cui, Qianqian, Buka, Stephen L, Zhang, Bin, Guo, Yong, Xia, Wei, Yeung, Leo W. Y, Li, Yuanyuan, Zhou, Aifen, Qiu, Lin, Liu, Hongxiu, Jiang, Minmin, Wu, Chuansha, Xu, Shunqing, Dai, Jiayin

“…Per- and polyfluoroalkyl substances (PFASs) may cross the placental barrier and lead to fetal exposure. However, little is known about the factors that…”
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Vertical Profiles, Sources, and Transport of PFASs in the Arctic Ocean by Yeung, Leo W.Y., Dassuncao, Clifton, Mabury, Scott, Sunderland, Elsie M., Zhang, Xianming, Lohmann, Rainer

“…The relative importance of atmospheric versus oceanic transport for poly- and perfluorinated alkyl substances (PFASs) reaching the Arctic Ocean is not well…”
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Analysis and characterization of novel fluorinated compounds used in surface treatments products by Fredriksson, Felicia, Kärrman, Anna, Eriksson, Ulrika, Yeung, Leo WY

“…Side-chain fluorinated polymers are speculated to be potential precursors to other non-polymeric aliphatic per- and polyfluoroalkyl acids (PFAAs). Limited…”
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Per- and Polyfluoroalkyl-Contaminated Freshwater Impacts Adjacent Riparian Food Webs by Koch, Alina, Jonsson, Micael, Yeung, Leo W.Y, Kärrman, Anna, Ahrens, Lutz, Ekblad, Alf, Wang, Thanh

“…The occurrence of per- and polyfluoroalkyl substances (PFASs) in aquatic ecosystems is a global concern because of their persistence, potential…”
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Characterization of the Chemical Contents of Fluorinated and Fluorine-Free Firefighting Foams Using a Novel Workflow Combining Nontarget Screening and Total Fluorine Analysis by Dubocq, Florian, Wang, Thanh, Yeung, Leo W. Y, Sjöberg, Viktor, Kärrman, Anna

“…Aqueous film-forming foams (AFFFs) are widely used to extinguish liquid fires due to their film-forming properties. AFFF formulation historically contains per-…”
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Targeted PFAS analyses and extractable organofluorine – Enhancing our understanding of the presence of unknown PFAS in Norwegian wildlife by Herzke, Dorte, Nikiforov, Vladimir, Yeung, Leo W.Y., Moe, Børge, Routti, Heli, Nygård, Torgeir, Gabrielsen, Geir.W., Hanssen, Linda

“…[Display omitted] •A broad range of PFAS are detected in Norwegian wildlife, mostly in marine species.•Otters belong to the highest exposed species.•PFECHS…”
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Distribution of polyfluoroalkyl compounds in water, suspended particulate matter and sediment from Tokyo Bay, Japan by Ahrens, Lutz, Taniyasu, Sachi, Yeung, Leo W.Y., Yamashita, Nobuyoshi, Lam, Paul K.S., Ebinghaus, Ralf

“…This study examined the environmental behaviour and fate of polyfluoroalkyl compounds (PFCs) found in water, suspended particulate matter (SPM) and sediment…”
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Part I. A Temporal Study of PFCAs and Their Precursors in Human Plasma from Two German Cities 1982–2009 by Yeung, Leo W. Y, Robinson, Shona J, Koschorreck, Jan, Mabury, Scott A

“…A total of 420 human plasma samples from two cities (Halle and Münster, Germany), collected between 1982 and 2009, were analyzed for a suite of PFCAs (C6–C12)…”
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Part II. A Temporal Study of PFOS and Its Precursors in Human Plasma from Two German Cities in 1982–2009 by Yeung, Leo W. Y, Robinson, Shona J, Koschorreck, Jan, Mabury, Scott A

“…A total of 420 human plasma from two cities (Halle and Münster, Germany) collected between 1982 and 2009, were analyzed for a suite of PFSAs (C4, C6, C8, C10)…”
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Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment by Ahrens, Lutz, Yeung, Leo W.Y., Taniyasu, Sachi, Lam, Paul K.S., Yamashita, Nobuyoshi

“…► The partitioning of PFOA, PFOS and PFOSA between water and sediment was evaluated. ► The log K OC was 4.1 cm 3 g −1 for PFOSA, 3.7 cm 3 g −1 for PFOS and 2.4…”
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Bioconcentration of Aqueous Film-Forming Foam (AFFF) in Juvenile Rainbow Trout (Oncorhyncus mykiss) by Yeung, Leo W. Y, Mabury, Scott A

“…This work investigated the bioconcentration of PFASs in juvenile rainbow trout by exposing the fish in separate tanks under flow-through conditions to water…”
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Removal of antibiotics from wastewater by sewage treatment facilities in Hong Kong and Shenzhen, China by Gulkowska, A., Leung, H.W., So, M.K., Taniyasu, S., Yamashita, N., Yeung, Leo W.Y., Richardson, Bruce J., Lei, A.P., Giesy, J.P., Lam, Paul K.S.

“…Concentrations of nine antibiotics [erythromycin-H 2O (ERY-H 2O); trimethoprim (TMP); tetracycline (TET); norfloxacin (NOR); penicillin G (PEN G); penicillin V…”
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Associations of urinary 5-methyl-2′-deoxycytidine and 5-hydroxymethyl-2′-deoxycytidine with phthalate exposure and semen quality in 562 Chinese adult men by Pan, Yitao, Jing, Jun, Yeung, Leo W.Y., Sheng, Nan, Zhang, Hongxia, Yao, Bing, Dai, Jiayin

“…5-methyl-2′-deoxycytidine (5mdC) and 5-hydroxymethyl-2′-deoxycytidine (5hmdC), products of DNA methylation and hydroxymethylation processes, have been detected…”
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Perfluoroalkyl substances and extractable organic fluorine in surface sediments and cores from Lake Ontario by Yeung, Leo W.Y., De Silva, Amila O., Loi, Eva I.H., Marvin, Chris H., Taniyasu, Sachi, Yamashita, Nobuyoshi, Mabury, Scott A., Muir, Derek C.G., Lam, Paul K.S.

“…Fourteen perfluoroalkyl substances (PFASs) including short-chain perfluorocarboxylates (PFCAs, C4–C6) and perfluoroalkane sulfonates (PFSAs, C4 and C6) were…”
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Perfluorooctanesulfonate and Related Fluorochemicals in Human Blood Samples from China by Yeung, Leo W. Y, So, M. K, Jiang, Guibin, Taniyasu, S, Yamashita, N, Song, Maoyong, Wu, Yongning, Li, Jingguang, Giesy, J. P, Guruge, K. S, Lam, Paul K. S

“…Perfluorooctanesulfonylfluoride (POSF)-based compounds have been manufactured and used in a variety of industrial applications. These compounds degrade to…”
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Gene Expression Profiles in Rat Liver Treated With Perfluorooctanoic Acid (PFOA) by Guruge, Keerthi S., Yeung, Leo W. Y., Yamanaka, Noriko, Miyazaki, Shigeru, Lam, Paul K. S., Giesy, John P., Jones, Paul D., Yamashita, Nobuyoshi

“…Perfluorooctanoic acid (PFOA; Pentadecafluorooctanoic acid) is widely used in various industrial applications. It is persistent in the environment and does not…”
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Age- and gender-related accumulation of perfluoroalkyl substances in captive Chinese alligators (Alligator sinensis) by Wang, Jianshe, Zhang, Yating, Zhang, Fang, Yeung, Leo W.Y., Taniyasu, Sachi, Yamazaki, Eriko, Wang, Renping, Lam, Paul K.S., Yamashita, Nobuyoshi, Dai, Jiayin

“…Fourteen perfluoroalkyl substances (PFASs) were measured in serum of the highly endangered captive Chinese alligators, whole body homogenates of six kinds of…”
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