Articles | Volume 18, issue 7
Atmos. Chem. Phys., 18, 5045–5058, 2018
https://doi.org/10.5194/acp-18-5045-2018
Atmos. Chem. Phys., 18, 5045–5058, 2018
https://doi.org/10.5194/acp-18-5045-2018

Research article 13 Apr 2018

Research article | 13 Apr 2018

Continuous non-marine inputs of per- and polyfluoroalkyl substances to the High Arctic: a multi-decadal temporal record

Heidi M. Pickard et al.

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Cited articles

Armitage, J. M., MacLeod, M., and Cousins, I. T.: Comparative Assessment of the Global Fate and Transport Pathways of Long-Chain Perfluorocarboxylic Acids (PFCAs) and Perfluorocarboxylates (PFCs) Emitted from Direct Sources, Environ. Sci. Technol., 43, 5830–5836, https://doi.org/10.1021/es900753y, 2009a. 
Armitage, J. M., Schenker, U., Scheringer, M., Martin, J. W., MacLeod, M., and Cousins, I. T.: Modeling the Global Fate and Transport of Perfluorooctane Sulfonate (PFOS) and Precursor Compounds in Relation to Temporal Trends in Wildlife Exposure, Environ. Sci. Technol., 43, 9274–9280, https://doi.org/10.1021/es901448p, 2009b. 
Barrie, L. A. and Barrie, M. J.: Chemical Components of Lower Tropospheric Aerosols in the High Arctic?: Six Years of Observations, J. Atmos. Chem., 11, 211–226, https://doi.org/10.1007/BF00118349, 1990. 
Benskin, J. P., Phillips, V., St. Louis, V. L., and Martin, J. W.: Source Elucidation of Perfluorinated Carboxylic Acids in Remote Alpine Lake Sediment Cores, Environ. Sci. Technol., 45, 7188–7194, https://doi.org/10.1021/es2011176, 2011. 
Benskin, J. P., Ahrens, L., Muir, D. C. G., Scott, B. F., Spencer, C., Rosenberg, B., Tomy, G., Kylin, H., Lohmann, R., and Martin, J. W.: Manufacturing origin of perfluorooctanoate (PFOA) in Atlantic and Canadian Arctic seawater, Environ. Sci. Technol., 46, 677–685, https://doi.org/10.1021/es202958p, 2012a. 
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Short summary
Perfluoroalkyl acids (PFAAs) are persistent, bioaccumulative compounds found in the environment far from source regions, including the remote Arctic. We collected a 15 m ice core from the Canadian High Arctic to measure a 38-year deposition record of PFAAs, proving information about major pollutant sources and production changes over time. Our results demonstrate that PFAAs have continuous and increasing deposition, despite recent North American regulations and phase-outs.
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