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Tytuł:
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Insufficient evidence for the existence of natural trifluoroacetic acid.
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Autorzy:
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Joudan S; Department of Chemistry, York University, Toronto, Ontario, Canada. .
De Silva AO; Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario, Canada.
Young CJ; Department of Chemistry, York University, Toronto, Ontario, Canada. .
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Źródło:
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Environmental science. Processes & impacts [Environ Sci Process Impacts] 2021 Nov 17; Vol. 23 (11), pp. 1641-1649. Date of Electronic Publication: 2021 Nov 17.
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Typ publikacji:
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Journal Article; Review
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Język:
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English
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Imprint Name(s):
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Original Publication: Cambridge : Royal Society of Chemistry
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MeSH Terms:
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Environmental Pollutants*
Water Pollutants, Chemical*/analysis
Environmental Monitoring ; Trifluoroacetic Acid/analysis
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Substance Nomenclature:
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0 (Environmental Pollutants)
0 (Water Pollutants, Chemical)
E5R8Z4G708 (Trifluoroacetic Acid)
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Entry Date(s):
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Date Created: 20211025 Date Completed: 20211119 Latest Revision: 20211119
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Update Code:
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20240105
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DOI:
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10.1039/d1em00306b
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PMID:
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34693963
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Trifluoroacetic acid (TFA) is a persistent and mobile pollutant that is present ubiquitously in the environment. As a result of a few studies reporting its presence in pre-industrial samples and a purported unaccounted source, TFA is often claimed to exist naturally. Here, we examine the evidence for natural TFA by: (i) critically evaluating measurements of TFA in pre-industrial samples; (ii) examining the likelihood of TFA formation by hypothesized mechanisms; (iii) exploring other potential TFA sources to the deep ocean; and (iv) examining global budgets of TFA. We conclude that the presence of TFA in the deep ocean and lack of closed TFA budget is not sufficient evidence that TFA occurs naturally, especially without a reasonable mechanism of formation. We argue the paradigm of natural TFA should no longer be carried forward.
