Cited by 267Per- and polyfluoroalkyl substances researchToxic Organic Pollutants ImpactFluorine in Organic Chemistry

Poly and perfluorinated carboxylates in North American precipitation

Scott, Brian F., Spencer, Christine, Mabury, Scott A., Muir, Derek C. G.·2006·Environmental Science & Technology

Abstract

Although perfluorocarboxylates (PFCAs) have been detected in a number of environmental matrices, there are very few reports on concentrations in precipitation. In this study PFCAs, fluorotelomercarboxylates (FTCAs), and fluorotelomer-unsaturated carboxylates (FTUCAs), were determined in wet only precipitation samples from nine sites in North America. The analytical method involved derivatization of the carboxylates and measurement of the 2,4-difluoroanilide by GC-MS. Samples from three remote sites in Canada had low concentrations of perfluorooctanoate (PFOA) (<0.1-6.1 ng/L). Significantly higher concentrations of PFOA were found at 4 northeastern United States and 2 southern urban Canadian sites, with Delaware having the highest levels (85 ng/L PFOA, with a range of 0.6-89 ng/L) and a maximum flux of 13 000 ng/m2. 8:2- and 10:2 FTCAs and FTUCAs were detected at all 4 U.S. sites and 2 urban Canadian sites (<0.07-8.6 ng/L), most frequently at the Delaware site. Longer chained PFCAs (deca-, undeca-, and dodeca-perfluorocarboxylates) were detected (<0.07-5.2 ng/L) at 2 urban Ontario sites but not determined in other samples. Air mass back trajectory results for 3 U.S. sites indicate highly populated urban areas in the New York to Washington corridor as the main sources of PFOA, although low PFOA levels associated with air masses coming off the Atlantic Ocean imply multiple sources.

Integrity signals

Registry

Crossref · 10.1021/es061403n

Cites

20 of 20 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Scott, B. F., Spencer, C., Mabury, S. A., & Muir, D. C. G.
Affiliations
Environment and Climate Change Canada (CA)
Corresponding author
Scott, Brian F.
Venue
Environmental Science & Technology
Published
2006-10-25
Volume
40
Issue
23
Pages
7167-7174
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W1976665393
Cited by
267
References
20
Citations by year
2026: 12 · 2025: 9 · 2024: 16 · 2023: 9 · 2022: 6 · 2021: 14 · 2020: 9 · 2019: 17 · 2018: 12 · 2017: 10 · 2016: 9 · 2015: 8 · 2014: 8 · 2013: 17 · 2012: 11
FWCI
17.45
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Fluorine in Organic Chemistry
Keywords
perfluorocarboxylates, perfluorooctanoic acid, wet deposition, precipitation chemistry, atmospheric transport, air mass back trajectories, North America
MeSH terms
Air Movements, Environmental Monitoring, Environmental Pollutants, Fluorocarbons, Geography, Gas Chromatography-Mass Spectrometry, North America, Rain

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review