Uptake mechanisms of perfluoroalkyl acids with different carbon chain lengths (C2-C8) by wheat (Triticum acstivnm L.)

Zhang, Lu; Sun, Hongwen; Wang, Qi; Chen, Hao; Yao, Yiming; Zhao, Zhen; Alder, Alfredo C.

doi:10.1016/j.scitotenv.2018.10.443

Cited by 109 publications

(91 citation statements)

References 57 publications

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“… 32 A larger set of samples would, in addition to less uncertainty in the reported concentration ranges, allow for detection of seasonal variations in PFAA input via inflowing streams that could possibly be attributed to agricultural activities and/or seasonal variations in vegetation. Since ultrashort-chain PFAAs can be taken up by plants, 18 , 19 the input via inflowing streams could follow the life cycle of vegetation, with larger input being associated with decomposition during fall.…”

Section: Resultsmentioning

confidence: 99%

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Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Björnsdotter

Yeung

Kärrman

et al. 2021

Environ. Sci. Technol.

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Perfluoroalkyl acids (PFAAs) are highly persistent chemicals that are ubiquitously found in the environment. The atmospheric degradation of precursor compounds has been identified as a source of PFAAs and might be an important pathway for contamination. Lake Vättern is one of Sweden’s largest lakes and is an important source for drinking water. In addition to contamination via atmospheric deposition, the lake is subject to several potential contamination sources via surface water inflow. The relevance of different sources is not well understood. A mass balance of selected PFAAs was assembled based on measured concentrations in atmospheric deposition, surface water from streams that constitute the main inflow and outflow, and surface water in the lake. The largest input was seen for trifluoroacetic acid (150 kg/year), perfluoropropanoic acid (1.6 kg/year), perfluorobutanoic acid (4.0 kg/year), and perfluoro-octanoic acid (1.5 kg/year). Both atmospheric deposition and surface water inflow was found to be important input pathways. There was a positive correlation between the input of most perfluoroalkyl carboxylic acids via atmospheric deposition and global radiation and between the input via surface water inflow and catchment area. These findings highlight the importance of atmospheric oxidation of volatile precursor compounds for contamination in surface waters.

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Section: Resultsmentioning

confidence: 99%

“…However, accumulation in plants has been shown. 18 , 19 There are limited data available on human exposure to ultrashort-chain PFAAs, but TFA was recently detected in human blood. 20 The high polarity makes ultrashort-chain PFAAs mobile in the environment, and accumulation in aquatic bodies has been observed.…”

Section: Introductionmentioning

confidence: 99%

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Björnsdotter

Yeung

Kärrman

et al. 2021

Environ. Sci. Technol.

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“…Given the low toxicity in mammals [ 53 ], these amounts present a de minimis risk to humans. Uptake and translocation of TFA by plants from soil has been demonstrated [ 60 ], but whether the TFA in beer and infusions was formed from pesticides used in fields or from breakdown of replacements for ODS in the atmosphere is uncertain.…”

Section: Air Qualitymentioning

confidence: 99%

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2021

Barnes

Robson

Neale

et al. 2022

Photochem Photobiol Sci

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The Environmental Effects Assessment Panel of the Montreal Protocol under the United Nations Environment Programme evaluates effects on the environment and human health that arise from changes in the stratospheric ozone layer and concomitant variations in ultraviolet (UV) radiation at the Earth’s surface. The current update is based on scientific advances that have accumulated since our last assessment (Photochem and Photobiol Sci 20(1):1–67, 2021). We also discuss how climate change affects stratospheric ozone depletion and ultraviolet radiation, and how stratospheric ozone depletion affects climate change. The resulting interlinking effects of stratospheric ozone depletion, UV radiation, and climate change are assessed in terms of air quality, carbon sinks, ecosystems, human health, and natural and synthetic materials. We further highlight potential impacts on the biosphere from extreme climate events that are occurring with increasing frequency as a consequence of climate change. These and other interactive effects are examined with respect to the benefits that the Montreal Protocol and its Amendments are providing to life on Earth by controlling the production of various substances that contribute to both stratospheric ozone depletion and climate change.

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“…However, the global distribution may be different for the other ultra-short-chain PFAAs compared with TFA and PFPrA since there is no data on potential volatile precursors of TFMS, PFEtS and PFPrS. A few studies have investigated the accumulation in terminal aquatic systems [9,24,36] and the uptake and potential accumulation of TFA in plants [36,[55][56][57]. Uptake and accumulation in plants, of both TFA and the other ultra-short-chain PFAAs, might be hazardous for the environment and human health and should be further investigated in the near future as the environmental concentrations of ultra-short-chain PFAAs can be expected to increase with continued use of PFASs.…”

Section: Human Health and Environmental Concernsmentioning

confidence: 99%

Challenges in the analytical determination of ultra-short-chain perfluoroalkyl acids and implications for environmental and human health

et al. 2020

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Ultra-short-chain perfluoroalkyl acids have recently gained attention due to increasing environmental concentrations being observed. The most well-known ultra-short-chain perfluoroalkyl acid is trifluoroacetic acid (TFA) which has been studied since the 1990s. Potential sources and the fate of ultra-short-chain perfluoroalkyl acids other than TFA are not well studied and data reporting their environmental occurrence is scarce. The analytical determination of ultra-short-chain perfluoroalkyl acids is challenging due to their high polarity resulting in low retention using reversed-phase liquid chromatography. Furthermore, recent studies have reported varying extraction recoveries in water samples depending on the water matrix and different methods have been suggested to increase the extraction recovery. The present review gives an overview of the currently used analytical methods and summarizes the findings regarding potential analytical challenges. In addition, the current state of knowledge regarding TFA and other ultra-short-chain perfluoroalkyl acids, namely perfluoropropanoic acid, trifluoromethane sulfonic acid, perfluoroethane sulfonic acid, and perfluoropropane sulfonic acid‚ are reviewed. Both known and potential sources as well as environmental concentrations are summarized and discussed together with their fate and the environmental and human implications.

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Uptake mechanisms of perfluoroalkyl acids with different carbon chain lengths (C2-C8) by wheat (Triticum acstivnm L.)

Cited by 109 publications

References 57 publications

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2021

Challenges in the analytical determination of ultra-short-chain perfluoroalkyl acids and implications for environmental and human health

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