Occurrence, spatial distribution, and sources of PFASs in the water and sediment from lakes in the Tibetan Plateau.

Per-and polyfluoroalkyl substances (PFASs) are omnipresent globally and received increasing attention recently. However, there are limited data on PFASs in the Tibetan Plateau (TP), a remote high-altitude mountain region, which is regard as an important indicator region to study long-range transport behaviors of contaminants. This study investigates the occurrence, distribution, partitioning behavior, and sources of 26 PFASs in water and sediments from the four lakes of TP. The ΣPFAS concentrations ranged from 338 to 9766 pg L-1 in water, and 12.2-414 pg g-1 dry weight in sediments. Perfluorobutanonic acid (PFBA) and perfluorooctane sulfonate (PFOS) were detected in all samples. Qinghai Lake had the highest ΣPFAS concentrations in both water and sediments, while the Ranwu Lake had the lowest. The functional groups and CF2 moiety units were investigated as essential factors influencing the partition behavior. Principal component analysis (PCA) combined back-trajectory was used to infer possible sources of PFASs. The results suggested that the main source of PFASs in Yamdrok Lake, Namco Lake, and Ranwu Lake on southern TP were mainly originated from South Asia via long-range atmospheric transport (LRAT); while for the Qinghai Lake of northern TP, LRAT, local emissions, and tourism activities were the primary sources of PFASs.

[1]  Xiaoping Wang,et al.  Perfluoroalkyl substances in precipitation from the Tibetan Plateau during monsoon season: Concentrations, source regions and mass fluxes. , 2021, Chemosphere.

[2]  Qinghua Zhang,et al.  Associations between Novel and Legacy Per- and Polyfluoroalkyl Substances in Human Serum and Thyroid Cancer: A Case and Healthy Population in Shandong Province, East China. , 2021, Environmental science & technology.

[3]  Jonathan P. Benskin,et al.  Perfluoroalkyl Substances in the Western Tropical Atlantic Ocean , 2021, Environmental science & technology.

[4]  Jian Zhu,et al.  Varied thyroid disrupting effects of perfluorooctanoic acid (PFOA) and its novel alternatives hexafluoropropylene-oxide-dimer-acid (GenX) and ammonium 4,8-dioxa-3H-perfluorononanoate (ADONA) in vitro. , 2021, Environment international.

[5]  G. Jiang,et al.  Legacy and emerging per- and polyfluoroalkyl substances (PFAS) in the Bohai Sea and its inflow rivers. , 2021, Environment international.

[6]  A. Polder,et al.  Within and between breeding-season changes in contaminant occurrence and body condition in the Antarctic breeding south polar skua. , 2021, Environmental pollution.

[7]  R. Gilliam,et al.  Characterizing the Air Emissions, Transport, and Deposition of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility. , 2021, Environmental science & technology.

[8]  P. Mayewski,et al.  Deposition of PFAS 'forever chemicals' on Mt. Everest. , 2020, The Science of the total environment.

[9]  James Jeffery Morrison,et al.  Correlation Analysis of Perfluoroalkyl Substances in Regional U.S. Precipitation Events. , 2020, Water research.

[10]  Seth R. Newton,et al.  Evidence of Air Dispersion: HFPO-DA and PFOA in Ohio and West Virginia Surface Water and Soil near a Fluoropolymer Production Facility. , 2020, Environmental science & technology.

[11]  R. Klaper,et al.  Distribution and effects of branched versus linear isomers of PFOA, PFOS, and PFHxS: A review of recent literature. , 2020, The Science of the total environment.

[12]  Lisa A. Rodenburg,et al.  Perfluoroalkyl substances in sediments from the Bering Sea to the western Arctic: Source and pathway analysis. , 2020, Environment international.

[13]  J. Ni,et al.  Polyfluoroalkyl substances in Danjiangkou Reservoir, China: Occurrence, composition, and source appointment. , 2020, The Science of the total environment.

[14]  Ji-Young Lee,et al.  Concentration and distribution of per- and polyfluoroalkyl substances (PFAS) in the Asan Lake area of South Korea. , 2020, Journal of hazardous materials.

[15]  Yonglong Lu,et al.  Assessing the contribution of atmospheric transport and tourism activities to the occurrence of perfluoroalkyl acids (PFAAs) in an Alpine Nature Reserve. , 2019, The Science of the total environment.

[16]  R. Quinlan,et al.  Characterization of perfluoroalkyl substances in sediment cores from High and Low Arctic lakes in Canada. , 2019, The Science of the total environment.

[17]  Zhi-guang Niu,et al.  Distribution, partitioning behavior and positive matrix factorization-based source analysis of legacy and emerging polyfluorinated alkyl substances in the dissolved phase, surface sediment and suspended particulate matter around coastal areas of Bohai Bay, China. , 2019, Environmental pollution.

[18]  Xiaoping Wang,et al.  Perfluorinated alkyl substances in snow as an atmospheric tracer for tracking the interactions between westerly winds and the Indian Monsoon over western China. , 2019, Environment international.

[19]  A. Calafat,et al.  Childhood perfluoroalkyl substance exposure and executive function in children at 8 years. , 2018, Environment international.

[20]  K. Jones,et al.  Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau , 2018, Atmospheric Chemistry and Physics.

[21]  Qianqian Cui,et al.  Worldwide Distribution of Novel Perfluoroether Carboxylic and Sulfonic Acids in Surface Water. , 2018, Environmental science & technology.

[22]  Rui-qiang Yang,et al.  Historical record of anthropogenic polycyclic aromatic hydrocarbons in a lake sediment from the southern Tibetan Plateau , 2018, Environmental Geochemistry and Health.

[23]  B. Jiménez,et al.  Role of Snow Deposition of Perfluoroalkylated Substances at Coastal Livingston Island (Maritime Antarctica). , 2017, Environmental science & technology.

[24]  S. Mabury,et al.  Vertical Profiles, Sources, and Transport of PFASs in the Arctic Ocean. , 2017, Environmental science & technology.

[25]  X. Xia,et al.  Short- and long-chain perfluoroalkyl substances in the water, suspended particulate matter, and surface sediment of a turbid river. , 2016, The Science of the total environment.

[26]  B. Xi,et al.  Spatial distribution and source apportionment of PFASs in surface sediments from five lake regions, China , 2016, Scientific Reports.

[27]  P. Whitehead,et al.  Perfluoroalkyl substances (PFAS) in river and ground/drinking water of the Ganges River basin: Emissions and implications for human exposure. , 2016, Environmental pollution.

[28]  R. Naidu,et al.  Chemical oxidization of some AFFFs leads to the formation of 6:2FTS and 8:2FTS , 2015, Environmental toxicology and chemistry.

[29]  S. Jørgensen,et al.  Temporal-spatial distributions and ecological risks of perfluoroalkyl acids (PFAAs) in the surface water from the fifth-largest freshwater lake in China (Lake Chaohu). , 2015, Environmental pollution.

[30]  W. Meng,et al.  Distribution, source characterization and inventory of perfluoroalkyl substances in Taihu Lake, China. , 2015, Chemosphere.

[31]  Dominik Fiedler,et al.  Perfluoroalkyl and polyfluoroalkyl substances in consumer products , 2015, Environmental Science and Pollution Research.

[32]  Zhanyun Wang,et al.  Hazard assessment of fluorinated alternatives to long-chain perfluoroalkyl acids (PFAAs) and their precursors: status quo, ongoing challenges and possible solutions. , 2015, Environment international.

[33]  J. Klaunig,et al.  Evaluation of the Chronic Toxicity and Carcinogenicity of Perfluorohexanoic Acid (PFHxA) in Sprague-Dawley Rats , 2015, Toxicologic pathology.

[34]  Jonathan P Benskin,et al.  Sorption of per‐ and polyfluoroalkyl substances (PFASs) on filter media: Implications for phase partitioning studies , 2015, Environmental toxicology and chemistry.

[35]  K. Hungerbühler,et al.  Global emission inventories for C4-C14 perfluoroalkyl carboxylic acid (PFCA) homologues from 1951 to 2030, Part I: production and emissions from quantifiable sources. , 2014, Environment international.

[36]  X. Xia,et al.  Spatial and vertical variations of perfluoroalkyl substances in sediments of the Haihe River, China. , 2014, Journal of environmental sciences.

[37]  Baiqing Xu,et al.  Accumulation of perfluoroalkyl compounds in tibetan mountain snow: temporal patterns from 1980 to 2010. , 2014, Environmental science & technology.

[38]  G. Jiang,et al.  Altitudinal and spatial signature of persistent organic pollutants in soil, lichen, conifer needles, and bark of the southeast Tibetan Plateau: implications for sources and environmental cycling. , 2013, Environmental science & technology.

[39]  Yong Liang,et al.  Occurrence and transport of perfluoroalkyl acids (PFAAs), including short-chain PFAAs in Tangxun Lake, China. , 2013, Environmental science & technology.

[40]  C. Higgins,et al.  Subsurface transport potential of perfluoroalkyl acids at aqueous film-forming foam (AFFF)-impacted sites. , 2013, Environmental science & technology.

[41]  W. Meng,et al.  Determination and partitioning behavior of perfluoroalkyl carboxylic acids and perfluorooctanesulfonate in water and sediment from Dianchi Lake, China. , 2012, Chemosphere.

[42]  F. Gobas,et al.  Observation of a novel PFOS-precursor, the perfluorooctane sulfonamido ethanol-based phosphate (SAmPAP) diester, in marine sediments. , 2012, Environmental science & technology.

[43]  Zhibo Lu,et al.  Per- and polyfluoroalkyl substances in snow, lake, surface runoff water and coastal seawater in Fildes Peninsula, King George Island, Antarctica. , 2012, Journal of hazardous materials.

[44]  Pierre Labadie,et al.  Biogeochemical dynamics of perfluorinated alkyl acids and sulfonates in the River Seine (Paris, France) under contrasting hydrological conditions. , 2011, Environmental pollution.

[45]  Jonathan P. Benskin,et al.  Source elucidation of perfluorinated carboxylic acids in remote alpine lake sediment cores. , 2011, Environmental science & technology.

[46]  James Franklin,et al.  Perfluoroalkyl and Polyfluoroalkyl Substances in the Environment: Terminology, Classification, and Origins , 2011, Integrated environmental assessment and management.

[47]  Junho Jeon,et al.  Effects of salinity and organic matter on the partitioning of perfluoroalkyl acid (PFAs) to clay particles. , 2011, Journal of environmental monitoring : JEM.

[48]  Lutz Ahrens,et al.  Polyfluoroalkyl compounds in the aquatic environment: a review of their occurrence and fate. , 2011, Journal of environmental monitoring : JEM.

[49]  Urs Berger,et al.  Levels and trends of poly- and perfluorinated compounds in the arctic environment. , 2010, The Science of the total environment.

[50]  Yanhong Wu,et al.  Quantitative analysis of lake area variations and the influence factors from 1971 to 2004 in the Nam Co basin of the Tibetan Plateau , 2010 .

[51]  Gang Pan,et al.  Effect of salinity and sediment characteristics on the sorption and desorption of perfluorooctane sulfonate at sediment-water interface. , 2010, Environmental pollution.

[52]  Nobuyoshi Yamashita,et al.  Distribution of polyfluoroalkyl compounds in water, suspended particulate matter and sediment from Tokyo Bay, Japan. , 2010, Chemosphere.

[53]  Yawei Wang,et al.  Occurrence of perfluorinated compounds in fish from Qinghai-Tibetan Plateau. , 2010, Environment international.

[54]  M. Clara,et al.  Perfluorinated alkylated substances in the aquatic environment: an Austrian case study. , 2009, Water research.

[55]  Richard G Luthy,et al.  Sorption of perfluorinated surfactants on sediments. , 2006, Environmental science & technology.

[56]  J. Giesy,et al.  Global distribution of perfluorooctane sulfonate in wildlife. , 2001, Environmental science & technology.