IntroductionPer- and polyfluoroalkyl substances (PFAS) present a unique challenge in water and wastewater treatment (Vo et al. 2020). Conventional physicochemical and biological treatment methods cannot fully degrade or mineralize PFASs in drinking water treatment (Belkouteb et al. 2020; Kim et al. 2020; Boone et al. 2019; Dauchy 2019; Page et al. 2019; Vughs et al. 2019; Hopkins et al. 2018) or wastewater treatment (Chen et al. 2018; Szabo et al. 2018; Arvaniti and Stasinakis 2015) and may generate PFAS transformation products. The treatment goal of mineralization relative to PFAS is defined by Horst et al. (2020) as complete defluorination regardless of whether the carbon is fully oxidized to carbon dioxide. In contrast to conventional treatment methods, Ahmed et al. (2020a) published a critical overview of different advanced degradation methods—advanced oxidation, PFAS defluorination, advanced reduction, and thermal and nonthermal processes—for PFAS removal from water and wastewater. However, the authors noted that most of these methods are laboratory studies at this stage that show promise but have not been tested in real commercial-scale plants.Fluorine, the lightest halogen, is the most electronegative element; as such, the C–F bond is among the strongest of known covalent bonds (Kissa 2001). Properties of PFAS are useful for industrial and commercial purposes, and mass production has occurred since the early 1950s (Kissa 2001). The same properties, such as thermal stability and chemical inertness, that make them useful also make them stable and environmentally persistent. As production continued into this century, environmental accumulation of PFAS from intentional and nonintentional releases has occurred. For instance, PFAS utilized in specific firefighting foams are distinct sources of environmental PFAS (Dauchy 2019). More broadly, the USEPA states that manufacturing plants, fire-training areas, and fire-suppression activities at airports, refineries, and military installations are primary sources of PFAS release to the environment (USEPA 2021a).The USEPA maintains an online, continuously growing (currently >9,000 chemicals) master list of PFAS (USEPA 2021b). Multiple categories of perfluoroalkyl (fully fluorinated carbon atoms) and polyfluoroalkyl (partially fluorinated carbon atoms) compounds exist. Each PFAS has a linear or branched alkyl chain (Kissa 2001) and a perfluoroalkyl group (CnF2  n+1) (Buck et al. 2011). Detailed definitions of PFAS-related terminology are available in Buck et al. (2011), Dauchy (2019), Pancras et al. (2016), and Wang et al. (2017). PFAS diversity is tabulated in Winchell et al. (2021a), and representative chemical structures are illustrated in Winchell et al. (2021b). PFAS comprise a large family of chemicals cataloged across various nomenclatures such as (1) polymeric (including fluoropolymers, perfluoropolyethers, and side-chain fluorinated polymers) and nonpolymeric [including perfluoroalkyl acids and per-/polyfluoroalkylether acids (PFAA), PFAA precursors, and others], most of which are further subcategorized; (2) legacy, transformation products, and emerging PFAS; (3) ultrashort-, short-, and long-chain PFAS; and (4) polar/nonpolar, nonvolatile/semivolatile/volatile, and neutral/anionic/cationic/zwitterionic PFAS. PFAA precursors are fluorinated chemicals that can be transformed abiotically or biotically into terminal perfluoroalkyl carboxylic acid (PFCA) or perfluoroalkyl sulfonic acid (PFSA) products (Casson and Chiang 2018).In 2006, the USEPA initiated the 2010/2015 PFOA Stewardship Program, inviting eight major PFAS industries to work toward the elimination of perfluorooctanoic acid (PFOA), PFOA precursor chemicals, and related higher homolog chemicals. The program is one of the main drivers of the reformulation of PFAS-based products. All companies have met the PFOA Stewardship Program goals (USEPA 2021c). The Stockholm Convention has restricted the production of perfluorooctanesulfonic acid (PFOS) (UNEP 2019a) and banned the production of PFOA (UNEP 2019b). However, as will be confirmed in this review, these PFAS still occur in the water cycle because of their persistence and because importation from other global markets remains a route for material entering the domestic chain of commerce.In response to increased regulation of long-chain so-called legacy PFAS [eight or more carbons (C8) in the alkyl chain and no ether bonds], industrial applications have shifted toward short-chain (C4–C7) and ultrashort-chain (C2 and C3) PFAS alternatives, with or without ether bonds (Wang et al. 2019; Mulabagal et al. 2018). As reported by the Interstate Technology and Regulatory Council (ITRC 2020), alternative PFAS-based chemical replacements are being marketed and some are appearing in the environment (Munoz et al. 2019; Gustavsson et al. 2018; Hopkins et al. 2018; Wang et al. 2015b), especially several subclasses of ether-PFASs, including the most well-known F-53B [major component (9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid) or 9Cl-PF3ONS and minor component (11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid) or 11Cl-PF3OUdS], Gen-X (hexafluoropropylene oxide dimer acid or HFPO-DA), and ADONA (4,8-dioxa-3H-perfluorononanoic acid) compounds (named in their acid forms). These PFAS replacement chemicals are now included in the EPA Analytical methods 533 and 537.1 for PFAS in drinking water (USEPA 2019). Unfortunately, many recently adopted fluorinated alternatives and precursors are more persistent and more environmentally mobile than legacy PFAS (Ghisi et al. 2019).Broad environmental PFOS contamination has been documented. Giesy and Kannan (2001) were the first to report global PFOS contamination in wildlife. For example, PFOS concentrations in the Midwestern US was as high as 2,570  ng/mL in the blood plasma of bald eagles and 3,680  ng/g wet weight in liver samples from mink. Animals tested from urban areas yielded higher concentrations than more remote locations; even wild polar bears contained detectable levels of PFOS. PFOS was measured at higher concentrations in predator species than prey, suggesting bioaccumulation of PFOS. A follow-up study demonstrated bioaccumulation in aquatic species (Giesy et al. 2010) and estimated water quality criteria for the protection of aquatic organisms and wildlife.Several studies across the globe have recently been published to illustrate the broad environmental contamination of PFAS. Muir et al. (2019) documented the wide presence of PFASs throughout the Arctic Ocean and near-shore environments, but they noted that “most long-term time series show a decline from higher concentrations in the early 2000s.” Ali et al. (2021) measured Saudi Arabian Red Sea PFAS concentrations in sediments and edible fish and pointed to wastewater effluents as the main source of these compounds. Bai and Son (2021) performed a study investigating the presence of 17 specific PFAS compounds in 6 surface water and sediment locations in the US state of Nevada, and found that short-chain PFAS were more prevalent in the aqueous phase, while long-chain PFAS were more prevalent in soil (sediments). Cao et al. (2019) investigated soil, sediment, and aqueous-phase PFAS in the Yuqiao reservoir in Tianjin, China, while Chen et al. (2021) investigated similar environmental samples in the Pearl River in southern China. Additional local studies across the globe regarding PFAS environmental contamination include Florida (Cui et al. 2020), Kampala, Uganda (Dalahmeh et al. 2018), Three Gorges Reservoir, China (Jin et al. 2020), the Asan Lake region of South Korea (Lee et al. 2020), South African estuaries (Olisah et al. 2021), Beibu Gulf, South China (Pan et al. 2021), Gangetic Plain, Patna, India (Richards et al. 2021), Mexico City (Rodríguez-Varela et al. 2021), Xiamen Bay, China (Wang et al. 2020), and the Loess Plateau, China (Zhou et al. 2021).In soils, Brusseau et al. (2020) compiled data from more than 30,000 samples from over 2,500 sites globally; the maximum reported PFOS concentrations reached up to several hundred milligrams per kilogram, even in remote regions, where sites were far from PFOS sources. Zacs and Bartkevics (2016) measured PFOA and PFOS in surface water, wastewater, biota, sediments, and sewage sludge in the Baltic region. They noted a prevalence of PFOS over PFOA in surface water and biota samples, whereas mean concentrations of PFOA were greater than PFOS in wastewater, sediments, and sewage sludge. Other, recent, reviews focused on fate and transport within soils and sediments, such as Willemsen and Bourg (2021), who studied the adsorption kinetics of various PFAS structures. Ahmed et al. (2020b) noted decreasing adsorption onto activated carbon as the carbon chain length increased in PFAS, although longer-chain PFAS have larger partition coefficient values than shorter-chained versions. Using numerical studies of PFOS transport within unsaturated soil, researchers have concluded that groundwater contamination could occur from decades to centuries after an initial surface spill (Mahinroosta et al. 2021; Sánchez-Soberón et al. 2020).A growing body of literature has demonstrated that PFAS are found in nearly all environments and in the organisms living therein, including humans. There are now thousands of research reports on the occurrence of PFAS in humans, with data being reported on PFAS levels in human blood, urine, milk, and other tissues (hair and nails) (De Silva et al. 2021; Liu et al. 2020; Jian et al. 2018). While most studies, to date, have focused on human blood, more recent research indicates the distribution of PFAS in various tissues is a function of both PFAS chain length and physiological characteristics (Jian et al. 2018).Water and diet are major potential pathways of PFAS exposure in humans along with food packaging, cookware, air, and air-suspended dust (Ghisi et al. 2019). Elevated PFAS water contamination from localized sources can impact raw water, and thus consumption of contaminated drinking water is a major pathway for human exposure (Tröger et al. 2021; Appleman et al. 2014) if PFAS-specific drinking water treatment is not implemented. The USEPA has established the drinking water health advisory level (HAL) at 70 parts per trillion (combined concentrations of PFOA and PFOS) (USEPA 2016). If drinking water meets the USEPA HAL, the daily intake of PFOS and PFOA from water is less than 20% of the estimated total average human intake per day (USEPA 2016).PFAS contamination of food may occur via irrigation and biosolid application in agriculture (Ghisi et al. 2019) and home food production (Huset and Barry 2018) or farmed and hunted animals (Death et al. 2021), resulting in additional human exposure. Ramakrishnan et al. (2021) documented the presence of PFAS even within organic farming systems and produce production. They noted the use of PFAS-containing composts and feeds, and report that, in some instances, organic meats may contain even higher concentrations of select chemicals than conventionally grown produce. With ubiquitous contamination and bioaccumulation tendencies, growing public concern about human exposure to PFAS stems from an increasing body of evidence of adverse toxicological effects (Sunderland et al. 2019; ATSDR 2021).Given the concern and broad environmental impact of PFAS, this manuscript aims to establish the connections within and between water resource recovery facilities (WRRFs) and drinking water treatment plants (WTPs) including their role in the fate and transport of PFAS cycling in the environment in a manner to inform the industry on this issue. The term water resource recovery facility is adopted here instead of wastewater treatment plant (WWTP) to more broadly reflect the ability to recover valuable resources from wastewater as advocated by the Water Environment Federation (WEF) (WEF 2014). Evidence for PFAS cycling is presented to inform and educate students, professional engineers, scientists, lab managers, treatment plant operators, and decision makers interested in the status of PFAS water quality impacts.References Ahmed, M. B., M. M. Alam, J. L. Zhou, B. Xu, M. A. H. Johir, A. K. Karmakar, M. S. Rahman, J. Hossen, A. K. Hasan, and M. A. Moni. 2020a. “Advanced treatment technologies efficacies and mechanism of per- and poly-fluoroalkyl substances removal from water.” Process Saf. Environ. Protect. 136 (Apr): 1–14. Ahmed, M. B., M. A. H. Johir, R. McLaughlan, L. N. Nguyen, B. Xu, and L. D. Nghiem. 2020b. “Per- and polyfluoroalkyl substances in soil and sediments: Occurrence, fate, remediation and future outlook.” Sci. Total Environ. 748 (Dec): 141251. Ahrens, L., M. Shoeib, T. Harner, S. C. Lee, R. Guo, and E. J. Reiner. 2011. “Wastewater treatment plant and landfills as sources of polyfluoroalkyl compounds to the atmosphere.” Environ. Sci. Technol. 45 (19): 8098–8105. Ali, A. M., M. Sanden, C. P. Higgins, S. E. Hale, W. M. Alarif, S. S. Al-Lihaibi, E. M. Ræder, H. A. Langberg, and R. Kallenborn. 2021. “Legacy and emerging per- and polyfluorinated alkyl substances (PFASs) in sediment and edible fish from the Eastern Red Sea.” Environ. Pollut. 280 (Jul): 116935. Appleman, T. D., C. P. Higgins, O. Quiñones, B. J. Vanderford, C. Kolstad, J. C. Zeigler-Holady, and E. R. V. Dickenson. 2014. “Treatment of poly- and perfluoroalkyl substances in U.S. full-scale water treatment systems.” Water Res. 51 (Mar): 246–255. Armstrong, D. L., N. Lozano, C. P. Rice, M. Ramirez, and A. Torrents. 2016. “Temporal trends of perfluoroalkyl substances in limed biosolids from a large municipal water resource recovery facility.” J. Environ. Manage. 165 (Jan): 88–95. Arvaniti, O. S., and A. S. Stasinakis. 2015. “Review on the occurrence, fate and removal of perfluorinated compounds during wastewater treatment.” Sci. Total Environ. 524–525 (Aug): 81–92. Ateia, M., A. Alsbaiee, T. Karanfil, and W. Dichtel. 2019a. “Efficient PFAS removal by amine-functionalized sorbents: Critical review of the current literature.” Environ. Sci. Technol. Lett. 6 (12): 688–695. Bach, C., X. Dauchy, V. Boiteux, A. Colin, J. Hemard, V. Sagres, C. Rosin, and J.-F. Munoz. 2017. “The impact of two fluoropolymer manufacturing facilities on downstream contamination of a river and drinking water resources with per- and polyfluoroalkyl substances.” Environ. Sci. Pollut. Res. 24 (5): 4916–4925. Baghirzade, B. S., Y. Zhang, J. F. Reuther, N. B. Saleh, A. K. Venkatesan, and O. G. Apul. 2021. “Thermal regeneration of spent granular activated carbon presents an opportunity to break the forever PFAS cycle.” Environ. Sci. Technol. 55 (9): 5608–5619. Barber, J. L., U. Berger, C. Chaemfa, S. Huber, A. Jahnke, C. Temme, and K. C. Jones. 2007. “Analysis of per- and polyfluorinated alkyl substances in air samples from Northwest Europe.” J. Environ. Monit. 9 (6): 530–541. Belkouteb, N., V. Franke, P. McCleaf, S. Köhler, and L. Ahrens. 2020. “Removal of per- and polyfluoroalkyl substances (PFASs) in a full-scale drinking water treatment plant: Long-term performance of granular activated carbon (GAC) and influence of flow-rate.” Water Res. 182 (Sep): 115913. Binetti, R., P. Calza, G. Costantino, S. Morgillo, and D. Papagiannaki. 2019. “Perfluoroalkyl substance assessment in Turin metropolitan area and correlation with potential sources of pollution according to the water safety plan risk management approach.” Separations 6 (1): 17. Boiteux, V., X. Dauchy, C. Bach, A. Colin, J. Hemard, V. Sagres, C. Rosin, and J.-F. Munoz. 2017. “Concentrations and patterns of perfluoroalkyl and polyfluoroalkyl substances in a river and three drinking water treatment plants near and far from a major production source.” Sci. Total Environ. 583 (Apr): 393–400. Bolan, N., et al. 2021a. “Distribution, behaviour, bioavailability and remediation of poly- and per-fluoroalkyl substances (PFAS) in solid biowastes and biowaste-treated soil.” Environ. Int. 155 (Oct): 106600. Bolan, N., et al. 2021b. “Remediation of poly- and perfluoroalkyl substances (PFAS) contaminated soils: To mobilize or to immobilize or to degrade?” J. Hazard. Mater. 401 (Jan): 123892. Brusseau, M. L. 2019a. “Estimating the relative magnitudes of adsorption to solid-water and air/oil-water interfaces for per- and poly-fluoroalkyl substances.” Environ. Pollut. 254 (Part B): 113102. Brusseau, M. L. 2019b. “The influence of molecular structure on the adsorption of PFAS to fluid-fluid interfaces: Using QSPR to predict interfacial adsorption coefficients.” Water Res. 152 (Apr): 148–158. Buck, R. C., J. Franklin, U. Berger, J. M. Conder, I. T. Cousins, P. de Voogt, A. A. Jensen, K. Kannan, S. A. Mabury, and S. P. J. van Leeuwen. 2011. “Perfluoroalkyl and polyfluoroalkyl substances in the environment: Terminology, classification, and origins.” Integr. Environ. Assess. Manage. 7 (4): 513–541. Campo, J., M. Lorenzo, F. Pérez, Y. Picó, M. Farré, and D. Barceló. 2016. “Analysis of the presence of perfluoroalkyl substances in water, sediment and biota of the Jucar River (E Spain). Sources, partitioning and relationships with water physical characteristics.” Environ. Res. 147 (May): 503–512. Cao, X., C. Wang, Y. Lu, M. Zhang, K. Khan, S. Song, P. Wang, and C. Wang. 2019. “Occurrence, sources and health risk of polyfluoroalkyl substances (PFASs) in soil, water and sediment from a drinking water source area.” Ecotoxicol. Environ. Saf. 174 (Jun): 208–217. Casson, R., and S. Y. D. Chiang. 2018. “Integrating total oxidizable precursor assay data to evaluate fate and transport of PFASs.” Remediation 28 (2): 71–87. Chen, C., Y. Yang, J. Zhao, Y. Liu, L. Hu, B. Li, C. Li, and G. Ying. 2021. “Legacy and alternative per- and polyfluoroalkyl substances (PFASs) in the West River and North River, south China: Occurrence, fate, spatio-temporal variations and potential sources.” Chemosphere 283 (Nov): 131301. Chen, H., L. Zhang, M. Li, Y. Yao, Z. Zhao, G. Munoz, and H. Sun. 2019. “Per- and polyfluoroalkyl substances (PFASs) in precipitation from mainland China: Contributions of unknown precursors and short-chain (C2–C3) perfluoroalkyl carboxylic acids.” Water Res. 153 (Apr): 169–177. Chen, S., Y. Zhou, J. Meng, and T. Wang. 2018. “Seasonal and annual variations in removal efficiency of perfluoroalkyl substances by different wastewater treatment processes.” Environ. Pollut. 242 (Part B): 2059–2067. Choi, Y. J., R. K. Lazcano, P. Yousefi, H. Trim, and L. S. Lee. 2019. “Perfluoroalkyl acid characterization in U.S. municipal organic solid waste composts.” Environ. Sci. Technol. Lett. 6 (6): 372–377. Clara, M., O. Gans, S. Weiss, D. Sanz-Escribano, S. Scharf, and C. Scheffknecht. 2009. “Perfluorinated alkylated substances in the aquatic environment: An Austrian case study.” Water Res. 43 (18): 4760–4768. Coggan, T. L., D. Moodie, A. Kolobaric, D. Szabo, J. Shimeta, N. D. Crosbie, E. Lee, M. Fernandes, and B. O. Clarke. 2019. “An investigation into per- and polyfluoroalkyl substances (PFAS) in nineteen Australian wastewater treatment plants (WWTPs).” Heliyon 5 (8): e022316. Cui, D., X. Li, and N. Quinete. 2020. “Occurrence, fate, sources and toxicity of PFAS: What we know so far in Florida and major gaps.” TRAC Trends Anal. Chem. 130 (Sep): 115976. Dalahmeh, S., S. Tirgani, A. J. Komakech, C. B. Niwagaba, and L. Ahrens. 2018. “Per- and polyfluoroalkyl substances (PFASs) in water, soil and plants in wetlands and agricultural areas in Kampala, Uganda.” Sci. Total Environ. 631–632 (Aug): 660–667. Daly, E. R., B. P. Chan, E. A. Talbot, J. Nassif, C. Bean, S. J. Cavallo, E. Metcalf, K. Simone, and A. D. Woolf. 2018. “Per- and polyfluoroalkyl substance (PFAS) exposure assessment in a community exposed to contaminated drinking water, New Hampshire, 2015.” Int. J. Hyg. Environ. Health 221 (3): 569–577. Dauchy, X., V. Boiteux, C. Bach, A. Colin, J. Hemard, C. Rosin, and J. F. Munoz. 2017. “Mass flows and fate of per- and polyfluoroalkyl substances (PFASs) in the wastewater treatment plant of a fluorochemical manufacturing facility.” Sci. Total Environ. 576 (Jan): 549–558. Death, C., C. Bell, D. Champness, C. Milne, S. Reichman, and T. Hagen. 2021. “Per- and polyfluoroalkyl substances (PFAS) in livestock and game species: A review.” Sci. Total Environ. 774 (Jun): 144795. De Silva, A. O., et al. 2021. “PFAS exposure pathways for humans and wildlife: A synthesis of current knowledge and key gaps in understanding.” Environ. Toxicol. Chem. 40 (3): 631–657. Dimzon, I. K., J. Westerveld, C. Gremmel, T. Frömel, T. P. Knepper, and P. de Voogt. 2017. “Sampling and simultaneous determination of volatile per- and polyfluoroalkyl substances in wastewater treatment plant air and water.” Anal. Bioanal.Chem. 409 (5): 1395–1404. Ellington, J., J. Washington, J. Evans, T. Jenkins, S. Hafner, and M. Neill. 2009. “Analysis of fluorotelomer alcohols in soils: Optimization of extraction and chromatography.” J. Chromatogr. A 1216 (28): 5347–5354. Ellis, D. A., J. W. Martin, A. O. De Silva, S. A. Mabury, M. D. Hurley, M. P. Sulbaek Andersen, and T. J. Wallington. 2004. “Degradation of fluorotelomer alcohols: A likely atmospheric source of perfluorinated carboxylic acids.” Environ. Sci. Technol. 38 (12): 3316–3321. Eriksson, U., P. Haglund, and A. Kärrman. 2017. “Contribution of precursor compounds to the release of per- and polyfluoroalkyl substances (PFASs) from waste water treatment plants (WWTPs).” J. Environ. Sci. 61 (Nov): 80–90. Fair, P. A., B. Wolf, N. D. White, S. A. Arnott, K. Kannan, R. Karthikraj, and J. E. Vena. 2019. “Perfluoroalkyl substances (PFASs) in edible fish species from Charleston Harbor and tributaries, South Carolina, United States: Exposure and risk assessment.” Environ. Res. 171 (Nov): 266–277. Gagliano, E., P. P. Falciglia, Y. Zaker, T. Karanfil, and P. Roccaro. 2021. “Microwave regeneration of granular activated carbon saturated with PFAS.” Water Res. 198 (Jun): 117121. Gagliano, E., M. Sgroi, P. P. Falciglia, F. G. A. Vagliasindi, and P. Roccaro. 2020. “Removal of poly- and perfluoroalkyl substances (PFAS) from water by adsorption: Role of PFAS chain length, effect of organic matter and challenges in adsorbent regeneration.” Water Res. 171 (Mar): 115381. Gallen, C., D. Drage, G. Eaglesham, S. Grant, M. Bowman, and J. F. Mueller. 2017. “Australia-wide assessment of perfluoroalkyl substances (PFASs) in landfill leachates.” J. Hazard. Mater. 331 (Jun): 132–141. Gallen, C., G. Eaglesham, D. Drage, T. H. Nguyen, and J. F. Mueller. 2018. “A mass estimate of perfluoroalkyl substance (PFAS) release from Australian wastewater treatment plants.” Chemosphere 208 (Oct): 975–983. Ghisi, R., T. Vamerali, and S. Manzetti. 2019. “Accumulation of perfluorinated alkyl substances (PFAS) in agricultural plants: A review.” Environ. Res. 169 (Jun): 326–341. Giesy, J. P., and K. Kannan. 2001. “Global distribution of perfluorooctane sulfonate in wildlife.” Environ. Sci. Technol. 35 (7): 1339–1342. Giesy, J. P., J. E. Naile, K. S. Khim, P. D. Jones, and J. L. Newsted. 2010. “Aquatic toxicology of perfluorinated chemicals.” In Vol. 202 of Reviews of environmental contamination and toxicology, 1–52. New York: Springer. Guelfo, J. L., and D. T. Adamson. 2018. “Evaluation of a national data set for insights into sources, composition, and concentrations of per- and polyfluoroalkyl substances (PFASs) in U.S. drinking water.” Environ. Pollut. 236 (May): 505–513. Guo, R., W. J. Sim, E. S. Lee, J. H. Lee, and J. E. Oh. 2010. “Evaluation of the fate of perfluoroalkyl compounds in wastewater treatment plants.” Water Res. 44 (11): 3476–3486. Gustavsson, J., K. Wiberg, E. Ribeli, M. A. Nguyen, S. Josefsson, and L. Ahrens. 2018. “Screening of organic flame retardants in Swedish river water.” Sci. Total Environ. 625 (Jun): 1046–1055. Hamid, H., and L. Li. 2016. “Role of wastewater treatment plant (WWTP) in environmental cycling of poly- and perfluoroalkyl (PFAS) compounds.” Ecocycles 2 (2): 43–53. Hamid, H., L. Y. Li, and J. R. Grace. 2018. “Review of the fate and transformation of per- and polyfluoroalkyl substances (PFASs) in landfills.” Environ. Pollut. 235 (Apr): 74–84. Harrad, S., D. S. Drage, M. Sharkey, and H. Berresheim. 2020. “Perfluoroalkyl substances and brominated flame retardants in landfill-related air, soil, and groundwater from Ireland.” Sci. Total Environ. 705 (Feb): 135834. Hepburn, E., A. Northway, D. Bekele, and M. Currell. 2019. “Incorporating perfluoroalkyl acids (PFAA) into a geochemical index for improved delineation of legacy landfill impacts on groundwater.” Sci. Total Environ. 666 (May): 1198–1208. Hopkins, Z. R., M. Sun, J. C. DeWitt, and D. R. U. Knappe. 2018. “Recently detected drinking water contaminants: GenX and other per- and polyfluoroalkyl ether acids.” J. Am. Water Works Assn. 110 (7): 13–28. Horst, J., J. McDonough, I. Ross, and E. Houtz. 2020. “Understanding and managing the potential by-products of PFAS destruction.” Groundwater Monit. Remediation 40 (2): 17–27. Houtz, E. F., R. Sutton, J. S. Park, and M. Sedlak. 2016. “Poly- and perfluoroalkyl substances in wastewater: Significance of unknown precursors, manufacturing shifts, and likely AFFF impacts.” Water Res. 95 (May): 142–149. Hu, X. C., et al. 2016. “Detection of poly- and perfluoroalkyl substances (PFASs) in U.S. drinking water linked to industrial sites, military fire training areas, and wastewater treatment plants.” Environ. Sci. Technol. Lett. 3 (10): 344–350. Huset, C. A., and K. M. Barry. 2018. “Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce.” MethodsX 5 (Jun): 697–704. ITRC (Interstate Technology & Regulatory Council). 2020. PFAS reductions and alternative PFAS formulations. Washington, DC: ITRC. Jahnke, A., L. Ahrens, R. Ebinghaus, U. Berger, J. L. Barber, and C. Temme. 2007. “An improved method for the analysis of volatile polyfluorinated alkyl substances in environmental air samples.” Anal. Bioanal.Chem. 387 (3): 965–975. Jian, J. M., D. Chen, F. J. Han, Y. Guo, L. Zeng, X. Lu, and F. Wang. 2018. “A short review on human exposure to and tissue distribution of per- and polyfluoroalkyl substances (PFASs).” Sci. Total Environ. 636 (Sep): 1058–1069. Jin, Q., H. Liu, X. Wei, W. Li, J. Chen, W. Yang, S. Qian, J. Yao, and X. Wang. 2020. “Dam operation altered profiles of per- and polyfluoroalkyl substances in reservoir.” J. Hazard. Mater. 393 (Jul): 122523. Joudan, S., R. Liu, J. C. D’eon, and S. A. Mabury. 2020. “Unique analytical considerations for laboratory studies identifying metabolic products of per- and polyfluoroalkyl substances (PFASs).” TRAC Trends Anal. Chem. 124 (Mar): 115431. Kim, K. Y., O. D. Ekpe, H. J. Lee, and J. E. Oh. 2020. “Perfluoroalkyl substances and pharmaceuticals removal in full-scale drinking water treatment plants.” J. Hazard. Mater. 400 (Dec): 123235. Kissa, E. 2001. Fluorinated surfactants and repellents. 2nd ed. New York: Marcel Dekker. Kotthoff, M., and M. Bücking. 2018. “Four chemical trends will shape the next decade’s directions in perfluoroalkyl and polyfluoroalkyl substances research.” Front. Chem. 6 (Apr): 103. Kumarasamy, E., I. M. Manning, L. B. Collins, O. Coronell, and F. A. Leibfarth. 2020. “Ionic fluorogels for remediation of per-and polyfluorinated alkyl substances from water.” ACS Cent. Sci. 6 (4): 487–492. Kwon, H. O., H. Y. Kim, Y. M. Park, K. S. Seok, J. E. Oh, and S. D. Choi. 2017. “Updated national emission of perfluoroalkyl substances (PFASs) from wastewater treatment plants in South Korea.” Environ. Pollut. 220 (Part A): 298–306. Lang, J. R., B. M. K. Allred, J. A. Field, J. W. Levis, and M. A. Barlaz. 2017. “National estimate of per- and polyfluoroalkyl substance (PFAS) release to U.S. municipal landfill leachate.” Environ. Sci. Technol. 51 (4): 2197–2205. Lazcano, R. K., Y. J. Choi, M. L. Mashtare, and L. S. Lee. 2020. “Characterizing and comparing per- and polyfluoroalkyl substances in commercially available biosolid and organic non-biosolid-based products.” Environ. Sci. Technol. 54 (14): 8640–8648. Lazcano, R. K., C. de Perre, M. L. Mashtare, and L. S. Lee. 2019. “Per- and polyfluoroalkyl substances in commercially available biosolid-based products: The effect of treatment processes.” Water Environ. Res. 91 (12): 1669–1677. Lee, H., A. G. Tevlin, and S. A. Mabury. 2014. “Fate of polyfluoroalkyl phosphate diesters and their metabolites in biosolids-applied soil: Biodegradation and plant uptake in greenhouse and field experiments.”Environ. Sci. Technol. 48 (1): 340–349. Lee, Y., J. Lee, M. Kim, H. Yang, J. Lee, Y. Son, Y. Kho, K. Choi, and K. Zoh. 2020. “Concentration and distribution of per- and polyfluoroalkyl substances (PFAS) in the Asan Lake area of South Korea.” J. Hazard. Mater. 381 (Jan): 120909. Lenka, S. P., M. Kah, and L. P. Padhye. 2021. “A review of the occurrence, transformation, and removal of poly- and perfluoroalkyl substances (PFAS) in wastewater treatment plants.” Water Res. 199 (Jul): 117187. Li, F., J. Duan, S. Tian, H. Ji, Y. Zhu, Z. Wei, and D. Zhao. 2020. “Short-chain per- and polyfluoroalkyl substances in aquatic systems: Occurrence, impacts and treatment.” Chem. Eng. J. 380 (Jan): 122506. Lindstrom, A. B., M. J. Strynar, A. D. Delinsky, S. F. Nakayama, L. McMillan, E. L. Libelo, M. Neill, and L. Thomas. 2011. “Application of WWTP biosolids and resulting perfluorinated compound contamination of surface and well water in Decatur, Alabama, USA.” Environ. Sci. Technol. 45 (19): 8015–8021. Liu, B., R. Zhang, H. Zhang, Y. Yu, D. Yao, and S. Yin. 2020. “Levels of perfluoroalkyl acids (PFAAs) in human serum, hair and nails in Guangdong Province, China: Implications for exploring the ideal bio-indicator.” Arch. Environ. Contam. Toxicol. 79 (2): 184–194. Loganathan, B. G., K. S. Sajwan, E. Sinclair, K. S. Kumar, and K. Kannan. 2007. “Perfluoroalkyl sulfonates and perfluorocarboxylates in two wastewater treatment facilities in Kentucky and Georgia.” Water Res. 41 (20): 4611–4620. Mahinroosta, R., L. Senevirathna, M. Li, and K. KrishnaPillai. 2021. “A methodology for transport modelling of a contaminated site with perfluorooctane sulfonate due to climate interaction.” Process Saf. Environ. Prot. 147 (Mar): 642–653. Mailler, R., et al. 2017. “Fate of emerging and priority micropollutants during the sewage sludge treatment: Case study of Paris conurbation. Part 1: Contamination of the different types of sewage sludge.” Waste Manage. 59 (Jan): 379–393. Masoner, J. R., et al. 2020. “Landfill leachate contributes per-/poly-fluoroalkyl substances (PFAS) and pharmaceuticals to municipal wastewater.” Environ. Sci. Water Res. Technol. 6 (5): 1300–1311. McCleaf, P., S. Englund, A. Östlund, K. Lindegren, K. Wiberg, and L. Ahrens. 2017. “Removal efficiency of multiple poly- and perfluoroalkyl substances (PFASs) in drinking water using granular activated carbon (GAC) and anion exchange (AE) column tests.” Water Res. 120 (Sep): 77–87. Mulabagal, V., L. Liu, J. Qi, C. Wilson, and J. S. Hayworth. 2018. “A rapid UHPLC-MS/MS method for simultaneous quantitation of 23 perfluoroalkyl substances (PFAS) in estuarine water.” Talanta 190 (Dec): 95–102. Mullin, L., D. R. Katz, N. Riddell, R. Plumb, J. A. Burgess, L. W. Y. Yeung, and I. E. Jogsten. 2019. “Analysis of hexafluoropropylene oxide-dimer acid (HFPO-DA) by liquid chromatography-mass spectrometry (LC-MS): Review of current approaches and environmental levels.” TRAC Trends Anal. Chem. 118 (Sep): 828–839. Munoz, G., J. Liu, S. Vo Duy, and S. Sauvé. 2019. “Analysis of F-53B, Gen-X, ADONA, and emerging fluoroalkylether substances in environmental and biomonitoring samples: A review.” Trends Environ. Anal. Chem. 23 (Jul): e00066. Mussabek, D., L. Ahrens, K. M. Persson, and R. Berndtsson. 2019. “Temporal trends and sediment–water partitioning of per- and polyfluoroalkyl substances (PFAS) in lake sediment.” Chemosphere 227 (Jul): 624–629. Nakayama, S. F., M. Yoshikane, Y. Onoda, Y. Nishihama, M. Iwai-Shimada, M. Takagi, Y. Kobayashi, and T. Isobe. 2019. “Worldwide trends in tracing poly- and perfluoroalkyl substances (PFAS) in the environment.” TRAC Trends Anal. Chem. 121 (Dec): 115410. Navarro, I., A. De La Torre, P. Sanz, M. Á. Porcel, G. Carbonell, and M. D. L. Á. Martínez. 2018. ““Transfer of perfluorooctanesulfonate (PFOS), decabrominated diphenyl ether (BDE-209) and Dechlorane Plus (DP) from biosolid-amended soils to leachate and runoff water.” Environ. Chem. 15 (4): 195–204. Navarro, I., P. Sanz, and M. Á. Martínez. 2011. “Analysis of perfluorinated alkyl substances in Spanish sewage sludge by liquid chromatography-tandem mass spectrometry.” Anal. Bioanal.Chem. 400 (5): 1277–1286. Olisah, C., J. B. Adams, and G. Rubidge. 2021. “The state of persistent organic pollutants in South African estuaries: A review of environmental exposure and sources.” Ecotoxicol. Environ. Saf. 219 (Aug): 112316. Page, D., J. Vanderzalm, A. Kumar, K. Y. Cheng, A. H. Kaksonen, and S. Simpson. 2019. “Risks of perfluoroalkyl and polyfluoroalkyl substances (PFAS) for sustainable water recycling via aquifers.” Water (Switzerland) 11 (8): 1737. Pan, C., S. Xiao, K. Yu, Q. Wu, and Y. Wang. 2021. “Legacy and alternative per- and polyfluoroalkyl substances in a subtropical marine food web from the Beibu Gulf, South China: Fate, trophic transfer and health risk assessment.” J. Hazard. Mater. 403 (Feb): 123618. Pan, C. G., Y. S. Liu, and G. G. Ying. 2016. “Perfluoroalkyl substances (PFASs) in wastewater treatment plants and drinking water treatment plants: Removal efficiency and exposure risk.” Water Res. 106 (Dec): 562–570. Patterson, C., J. Burkhardt, D. Schupp, E. R. Krishnan, S. Dyment, S. Merritt, L. Zintek, and D. Kleinmaier. 2019. “Effectiveness of point-of-use/point-of-entry systems to remove per- and polyfluoroalkyl substances from drinking water.” AWWA Water Sci. 1 (2): e1131. Pike, K. A., P. L. Edmiston, J. J. Morrison, and J. A. Faust. 2021. “Correlation analysis of perfluoroalkyl substances in regional U.S. precipitation events.” Water Res. 190 (Feb): 116685. Qi, Y., Z. He, S. Huo, J. Zhang, B. Xi, and S. Hu. 2017. “Source apportionment of perfluoroalkyl substances in surface sediments from lakes in Jiangsu Province, China: Comparison of three receptor models.” J. Environ. Sci. (China) 57 (Jul): 321–328. Rahman, M. F., S. Peldszus, and W. B. Anderson. 2014. “Behaviour and fate of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in drinking water treatment: A review.” Water Res. 50 (Mar): 318–340. Ramakrishnan, B., N. R. Maddela, K. Venkateswarlu, and M. Megharaj. 2021. “Organic farming: Does it contribute to contaminant-free produce and ensure food safety?” Sci. Total Environ. 769 (May): 145079. Ren, X., K. Song, Y. Xiao, S. Zong, and D. Liu. 2020. “Effective treatment of spacer tube reverse osmosis membrane concentrated leachate from an incineration power plant using coagulation coupled with electrochemical treatment processes.” Chemosphere 244 (Apr): 125479. Ren, X., X. Xu, Y. Xiao, W. Chen, and K. Song. 2019. “Effective removal by coagulation of contaminants in concentrated leachate from municipal solid waste incineration power plants.” Sci. Total Environ. 685 (Oct): 392–400. Richards, L. A., et al. 2021. “Emerging organic contaminants in groundwater under a rapidly developing city (Patna) in northern India dominated by high concentrations of lifestyle chemicals.” Environ. Pollut. 268 (Part A): 115765. Riedel, T. P., J. R. Lang, M. J. Strynar, A. B. Lindstrom, and J. H. Offenberg. 2019. “Gas-phase detection of fluorotelomer alcohols and other oxygenated per- and polyfluoroalkyl substances by chemical ionization mass spectrometry.” Environ. Sci. Technol. Lett. 6 (5): 289–293. Robel, A. E., K. Marshall, M. Dickinson, D. Lunderberg, C. Butt, G. Peaslee, H. M. Stapleton, and J. A. Field. 2017. “Closing the mass balance on fluorine on papers and textiles.” Environ. Sci. Technol. 51 (16): 9022–9032. Rodowa, A. E., D. R. U. Knappe, S. Y. D. Chiang, D. Pohlmann, C. Varley, A. Bodour, and J. A. Field. 2020. “Pilot scale removal of per- and polyfluoroalkyl substances and precursors from AFFF-impacted groundwater by granular activated carbon.” Environ. Sci. Water Res. Technol. 6 (4): 1083–1094. Rodríguez-Varela, M., J. C. Durán-Álvarez, B. Jiménez-Cisneros, O. Zamora, and B. Prado. 2021. “Occurrence of perfluorinated carboxylic acids in Mexico City’s wastewater: A monitoring study in the sewerage and a mega wastewater treatment plant.” Sci. Total Environ. 774 (Jun): 145060. Röhler, K., A. A. Haluska, B. Susset, B. Liu, and P. Grathwohl. 2021. “Long-term behavior of PFAS in contaminated agricultural soils in Germany.” J. Contam. Hydrol. 241 (Aug): 103812. Ross, I., J. McDonough, J. Miles, P. Storch, P. T. Kochunarayanan, E. Kalve, J. Hurst, S. S. Dasgupta, and J. Burdick. 2018. “A review of emerging technologies for remediation of PFASs.” Remediation 28 (2): 101–126. Sáez, M., P. De Voogt, and J. R. Parsons. 2008. “Persistence of perfluoroalkylated substances in closed bottle tests with municipal sewage sludge.” Environ. Sci. Pollut. Res. 15 (6): 472–477. Sánchez-Soberón, F., R. Sutton, M. Sedlak, D. Yee, M. Schuhmacher, and J. Park. 2020. “Multi-box mass balance model of PFOA and PFOS in different regions of San Francisco Bay.” Chemosphere 252 (Aug): 126454. Sasi, P. C., A. Alinezhad, B. Yao, A. Kubatova, S. A. Golovko, M. Y. Golovko, and F. Xiao. 2021. “Effect of granular activated carbon and other porous materials on thermal decomposition of per- and polyfluoroalkyl substances: Mechanisms and implications for water purification.” Water Res. 200 (Jul): 117271. Schaefer, C. E., S. Choyke, P. L. Ferguson, C. Andaya, A. Burant, A. Maizel, T. J. Strathmann, and C. P. Higgins. 2018. “Electrochemical transformations of perfluoroalkyl acid (PFAA) precursors and PFAAs in groundwater impacted with aqueous film forming foams.” Environ. Sci. Technol. 52 (18): 10689–10697. Scher, D. P., J. E. Kelly, C. A. Huset, K. M. Barry, R. W. Hoffbeck, V. L. Yingling, and R. B. Messing. 2018. “Occurrence of perfluoroalkyl substances (PFAS) in garden produce at homes with a history of PFAS-contaminated drinking water.” Chemosphere 196 (Apr): 548–555. Schultz, M. M., C. P. Higgins, C. A. Huset, R. G. Luthy, D. F. Barofsky, and J. A. Field. 2006. “Fluorochemical mass flows in a municipal wastewater treatment facility.” Environ. Sci. Technol. 40 (23): 7350–7357. Seo, S. H., M. H. Son, E. S. Shin, S. D. Choi, and Y. S. Chang. 2019. “Matrix-specific distribution and compositional profiles of perfluoroalkyl substances (PFASs) in multimedia environments.” J. Hazard. Mater. 364 (Feb): 19–27. Sepulvado, J. G., A. C. Blaine, L. S. Hundal, and C. P. Higgins. 2011. “Occurrence and fate of perfluorochemicals in soil following the land application of municipal biosolids.” Environ. Sci. Technol. 45 (19): 8106–8112. Solo-Gabriele, H. M., A. S. Jones, A. B. Lindstrom, and J. R. Lang. 2020. “Waste type, incineration, and aeration are associated with per- and polyfluoroalkyl levels in landfill leachates.” Waste Manage. 107 (Apr): 191–200. Sun, H., A. C. Gerecke, W. Giger, and A. C. Alder. 2011. “Long-chain perfluorinated chemicals in digested sewage sludges in Switzerland.” Environ. Pollut. 159 (2): 654–662. Sunderland, E. M., X. C. Hu, C. Dassuncao, A. K. Tokranov, C. C. Wagner, and J. G. Allen. 2019. “A review of the pathways of human exposure to poly- and perfluoroalkyl substances (PFASs) and present understanding of health effects.” J. Exposure Sci. Environ. Epidemiol. 29 (Nov): 131–147. Szabo, D., T. L. Coggan, T. C. Robson, M. Currell, and B. O. Clarke. 2018. “Investigating recycled water use as a diffuse source of per- and polyfluoroalkyl substances (PFASs) to groundwater in Melbourne, Australia.” Sci. Total Environ. 644 (Dec): 1409–1417. Thackray, C. P., N. E. Selin, and C. J. Young. 2020. “A global atmospheric chemistry model for the fate and transport of PFCAs and their precursors.” Environ. Sci. Process. Impacts 22 (2): 285–293. Tröger, R., et al. 2021. “What’s in the water? Target and suspect screening of contaminants of emerging concern in raw water and drinking water from Europe and Asia.” Water Res. 198 (Jun): 117099. USEPA. 2011. Drinking water treatment plant residuals management technical report: Summary of residuals generation, treatment, and disposal at large community water systems. EPA 820-R-11-003. Washington, DC: USEPA. Valsecchi, S., M. Rusconi, and S. Polesello. 2013. “Determination of perfluorinated compounds in aquatic organisms: A review.” Anal. Bioanal.Chem. 405 (1): 143–157. Venkatesan, A. K., and R. U. Halden. 2013. “National inventory of perfluoroalkyl substances in archived U.S. biosolids from the 2001 EPA national sewage sludge survey.” J. Hazard. Mater. 252–253: 413–418. Vestergren, R., S. Ullah, I. Cousins, and U. Berger. 2012. “A matrix effect-free method for reliable quantification of perfluoroalkyl carboxylic acids and perfluoroalkane sulfonic acids at low parts per trillion levels in dietary samples.” J. Chromatogr. A 1237 (11): 64–71. Vo, H. N. P., H. H. Ngo, W. Guo, T. M. H. Nguyen, J. Li, H. Liang, L. Deng, Z. Chen, and T. A. H. Nguyen. 2020. “Poly- and perfluoroalkyl substances in water and wastewater: A comprehensive review from sources to remediation.” J. Water Process Eng. 36 (Aug): 101393. Vughs, D., K. A. Baken, M. M. L. Dingemans, and P. de Voogt. 2019. “The determination of two emerging perfluoroalkyl substances and related halogenated sulfonic acids and their significance for the drinking water supply chain.” Environ. Sci. Processes Impacts 21 (11): 1899–1907. Wang, F., K. Shih, R. Ma, and X. Li. 2015a. “Influence of cations on the partition behavior of perfluoroheptanoate (PFHpA) and perfluorohexanesulfonate (PFHxS) on wastewater sludge.” Chemosphere 131 (Jul): 178–183. Wang, S., et al. 2020. “Occurrence and partitioning behavior of per- and polyfluoroalkyl substances (PFASs) in water and sediment from the Jiulong Estuary-Xiamen Bay, China.” Chemosphere 238 (Jan): 124578. Wang, Y., W. Chang, L. Wang, Y. Zhang, Y. Zhang, M. Wang, Y. Wang, and P. Li. 2019. “A review of sources, multimedia distribution and health risks of novel fluorinated alternatives.” Ecotoxicol. Environ. Saf. 182 (Oct): 109402. Wang, Y., N. Yu, X. Zhu, H. Guo, J. Jiang, X. Wang, W. Shi, J. Wu, H. Yu, and S. Wei. 2018. “Suspect and nontarget screening of per- and polyfluoroalkyl substances in wastewater from a fluorochemical manufacturing park.” Environ. Sci. Technol. 52 (19): 11007–11016. Wang, Z., I. T. Cousins, M. Scheringer, and K. Hungerbuehler. 2015b. “Hazard assessment of fluorinated alternatives to long-chain perfluoroalkyl acids (PFAAs) and their precursors: Status quo, ongoing challenges and possible solutions.” Environ. Int. 75 (Feb): 172–179. Wang, Z., J. C. Dewitt, C. P. Higgins, and I. T. Cousins. 2017. “A never-ending story of per- and polyfluoroalkyl substances (PFASs)?” Environ. Sci. Technol. 51 (5): 2508–2518. Watanabe, N., M. Takata, S. Takemine, and K. Yamamoto. 2018. “Thermal mineralization behavior of PFOA, PFHxA, and PFOS during reactivation of granular activated carbon (GAC) in nitrogen atmosphere.” Environ. Sci. Pollut. Res. 25 (8): 7200–7205. Watanabe, N., S. Takemine, K. Yamamoto, Y. Haga, and M. Takata. 2016. “Residual organic fluorinated compounds from thermal treatment of PFOA, PFHxA and PFOS adsorbed onto granular activated carbon (GAC).” J. Mater. Cycles Waste Manage. 18 (4): 625–630. Wei, C., Q. Wang, X. Song, X. Chen, R. Fan, D. Ding, and Y. Liu. 2018. “Distribution, source identification and health risk assessment of PFASs and two PFOS alternatives in groundwater from non-industrial areas.” Ecotoxicol. Environ. Saf. 152 (May): 141–150. Wei, Z., T. Xu, and D. Zhao. 2019. “Treatment of per- and polyfluoroalkyl substances in landfill leachate: Status, chemistry and prospects.” Environ. Sci. Water Res. Technol. 5 (11): 1814–1835. Wells, M. J. M., G. A. Mullins, K. Y. Bell, A. K. Da Silva, and E. M. Navarrete. 2017. “Fluorescence and Quenching Assessment (EEM-PARAFAC) of de Facto Potable Reuse in the Neuse River, North Carolina, United States.” Environ. Sci. Technol. 51 (23): 13592–13602. Willemsen, J. A. R., and I. C. Bourg. 2021. “Molecular dynamics simulation of the adsorption of per- and polyfluoroalkyl substances (PFASs) on smectite clay.” J. Colloid Interface Sci. 585 (Mar): 337–346. Winchell, L. J., J. J. Ross, M. J. M. Wells, X. Fonoll, J. W. Norton Jr., and K. Y. Bell. 2021a. “Per- and polyfluoroalkyl substances thermal destruction at water resource recovery facilities: A state of the science review.” Water Environ. Res. 93 (6): 826–843. Winchell, L. J., M. J. M. Wells, J. J. Ross, X. Fonoll, J. W. Norton Jr., S. Kuplicki, M. Khan, and K. Y. Bell. 2021b. “Analyses of per- and polyfluoroalkyl substances (PFAS) through the urban water cycle: Toward achieving an integrated analytical workflow across aqueous, solid, and gaseous matrices in water and wastewater treatment.” Sci. Total Environ. 774 (Jun): 145257. Xiao, F., P. C. Sasi, B. Yao, A. Kubatova, S. A. Golovko, M. Y. Golovko, and D. Soli. 2020. “Thermal stability and decomposition of perfluoroalkyl substances on spent granular activated carbon.” Environ. Sci. Technol. Lett. 7 (5): 343–350. Yu, J., J. Hu, S. Tanaka, and S. Fujii. 2009. “Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in sewage treatment plants.” Water Res. 43 (9): 2399–2408. Yu, J., A. Nickerson, Y. Li, Y. Fang, and T. J. Strathmann. 2020a. “Fate of per- and polyfluoroalkyl substances (PFAS) during hydrothermal liquefaction of municipal wastewater treatment sludge.” Environ. Sci. Water Res. Technol. 6 (5): 1388–1399. Yu, N., H. Wen, X. Wang, E. Yamazaki, S. Taniyasu, N. Yamashita, H. Yu, and S. Wei. 2020b. “Nontarget discovery of per- and polyfluoroalkyl substances in atmospheric particulate matter and gaseous phase using cryogenic air sampler.” Environ. Sci. Technol. 54 (6): 3103–3113. Zacs, D., and V. Bartkevics. 2016. “Trace determination of perfluorooctane sulfonate and perfluorooctanoic acid in environmental samples (surface water, wastewater, biota, sediments, and sewage sludge) using liquid chromatography: Orbitrap mass spectrometry.” J. Chromatogr. A 1473 (Nov): 109–121. Zaggia, A., L. Conte, L. Falletti, M. Fant, and A. Chiorboli. 2016. “Use of strong anion exchange resins for the removal of perfluoroalkylated substances from contaminated drinking water in batch and continuous pilot plants.” Water Res. 91 (Mar): 137–146. Zhang, C., Z. R. Hopkins, J. McCord, M. J. Strynar, and D. R. U. Knappe. 2019. “Fate of per- and polyfluoroalkyl ether acids in the total oxidizable precursor assay and implications for the analysis of impacted water.” Environ. Sci. Technol. Lett. 6 (11): 662–668. Zhang, D. Q., M. Wang, Q. He, X. Niu, and Y. Liang. 2020. “Distribution of perfluoroalkyl substances (PFASs) in aquatic plant-based systems: From soil adsorption and plant uptake to effects on microbial community.” Environ. Pollut. 257 (Feb): 113575. Zhang, W., S. Pang, Z. Lin, S. Mishra, P. Bhatt, and S. Chen. 2021. “Biotransformation of perfluoroalkyl acid precursors from various environmental systems: Advances and perspectives.” Environ. Pollut. 272 (Mar): 115908. Zhou, J., S. Li, X. Liang, X. Feng, T. Wang, Z. Li, and L. Zhu. 2021. “First report on the sources, vertical distribution and human health risks of legacy and novel per- and polyfluoroalkyl substances in groundwater from the Loess Plateau, China.” J. Hazard. Mater. 404 (Part A): 124134.

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