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Perfluoroalkyl Acids in the Atlantic and Canadian Arctic Oceans

Overview of attention for article published in Environmental Science & Technology, May 2012
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Title
Perfluoroalkyl Acids in the Atlantic and Canadian Arctic Oceans
Published in
Environmental Science & Technology, May 2012
DOI 10.1021/es300578x
Pubmed ID
Authors

Jonathan P. Benskin, Derek C. G. Muir, Brian F. Scott, Christine Spencer, Amila O. De Silva, Henrik Kylin, Jonathan W. Martin, Adam Morris, Rainer Lohmann, Gregg Tomy, Bruno Rosenberg, Sachi Taniyasu, Nobuyoshi Yamashita

Abstract

We report here on the spatial distribution of C(4), C(6), and C(8) perfluoroalkyl sulfonates, C(6)-C(14) perfluoroalkyl carboxylates, and perfluorooctanesulfonamide in the Atlantic and Arctic Oceans, including previously unstudied coastal waters of North and South America, and the Canadian Arctic Archipelago. Perfluorooctanoate (PFOA) and perfluorooctanesulfonate (PFOS) were typically the dominant perfluoroalkyl acids (PFAAs) in Atlantic water. In the midnorthwest Atlantic/Gulf Stream, sum PFAA concentrations (∑PFAAs) were low (77-190 pg/L) but increased rapidly upon crossing into U.S. coastal water (up to 5800 pg/L near Rhode Island). ∑PFAAs in the northeast Atlantic were highest north of the Canary Islands (280-980 pg/L) and decreased with latitude. In the South Atlantic, concentrations increased near Rio de la Plata (Argentina/Uruguay; 350-540 pg/L ∑PFAAs), possibly attributable to insecticides containing N-ethyl perfluorooctanesulfonamide, or proximity to Montevideo and Buenos Aires. In all other southern hemisphere locations, ∑PFAAs were <210 pg/L. PFOA/PFOS ratios were typically ≥1 in the northern hemisphere, ∼1 near the equator, and ≤1 in the southern hemisphere. In the Canadian Arctic, ∑PFAAs ranged from 40 to 250 pg/L, with perfluoroheptanoate, PFOA, and PFOS among the PFAAs detected at the highest concentrations. PFOA/PFOS ratios (typically ≫1) decreased from Baffin Bay to the Amundsen Gulf, possibly attributable to increased atmospheric inputs. These data help validate global emissions models and contribute to understanding of long-range transport pathways and sources of PFAAs to remote regions.

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Mendeley readers

The data shown below were compiled from readership statistics for 77 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Sweden 1 1%
Unknown 76 99%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 21 27%
Researcher 19 25%
Student > Master 7 9%
Student > Doctoral Student 6 8%
Student > Bachelor 5 6%
Other 19 25%
Readers by discipline Count As %
Environmental Science 34 44%
Chemistry 18 23%
Unspecified 12 16%
Earth and Planetary Sciences 7 9%
Agricultural and Biological Sciences 2 3%
Other 4 5%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 May 2012.
All research outputs
#3,111,453
of 4,505,992 outputs
Outputs from Environmental Science & Technology
#3,593
of 4,704 outputs
Outputs of similar age
#48,619
of 75,675 outputs
Outputs of similar age from Environmental Science & Technology
#104
of 156 outputs
Altmetric has tracked 4,505,992 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,704 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.4. This one is in the 16th percentile – i.e., 16% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 75,675 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 156 others from the same source and published within six weeks on either side of this one. This one is in the 24th percentile – i.e., 24% of its contemporaries scored the same or lower than it.