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Title: Anthropogenic Signatures of Lead in the Northeast Atlantic [Anthropogenic signatures of lead in North West European margin]

Abstract

Anthropogenic activities have resulted in enhanced lead (Pb) emissions to the environment over the past century, mainly through the combustion of leaded gasoline. Here we present the first combined dissolved (DPb), labile (LpPb), and particulate (PPb) Pb data set from the Northeast Atlantic (Celtic Sea) since the phasing out of leaded gasoline in Europe. Concentrations of DPb in surface waters have decreased by fourfold over the last four decades. We demonstrate that anthropogenic Pb is transported from the Mediterranean Sea over long distances (>2,500 km). Benthic DPb fluxes exceeded the atmospheric Pb flux in the region, indicating the importance of sediments as a contemporary Pb source. A strong positive correlation between DPb, PPb, and LpPb indicates a dynamic equilibrium between the phases and the potential for particles to “buffer” the DPb pool. This study provides insights into Pb biogeochemical cycling and demonstrates the potential of Pb in constraining ocean circulation patterns.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [9];  [2];  [10]
  1. University of Southampton (United Kingdom). Ocean and Earth Sciences, National Oceanography Centre; GEOMAR Helmholtz Centre for Ocean Research, Kiel (Germany)
  2. University of Plymouth (United Kingdom). School of Geography, Earth and Environmental Sciences
  3. Univ. of Edinburgh, Scotland (United Kingdom). School of Geosciences
  4. GEOMAR Helmholtz Centre for Ocean Research, Kiel (Germany)
  5. University of Southampton (United Kingdom). Ocean and Earth Sciences, National Oceanography Centre; University of Plymouth (United Kingdom). School of Geography, Earth and Environmental Sciences
  6. Université de Bretagne Occidentale, Brest (France)
  7. NIOZ Royal Netherlands Institute for Sea Research, Texel (Netherlands). Department of Ocean Systems
  8. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division
  9. GEOMAR Helmholtz Centre for Ocean Research Kiel, (Germany)
  10. National Oceanography Centre Southampton (United Kingdom)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1466150
Report Number(s):
LLNL-JRNL-756246
Journal ID: ISSN 0094-8276; 943734
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 45; Journal Issue: 6; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; lead; Celtic Sea; MOW; sediments; particles; trace metals

Citation Formats

Rusiecka, D., Gledhill, M., Milne, A., Achterberg, E. P., Annett, A. L., Atkinson, S., Birchill, A., Karstensen, J., Lohan, M., Mariez, C., Middag, R., Rolison, J. M., Tanhua, T., Ussher, S., and Connelly, D. Anthropogenic Signatures of Lead in the Northeast Atlantic [Anthropogenic signatures of lead in North West European margin]. United States: N. p., 2018. Web. doi:10.1002/2017GL076825.
Rusiecka, D., Gledhill, M., Milne, A., Achterberg, E. P., Annett, A. L., Atkinson, S., Birchill, A., Karstensen, J., Lohan, M., Mariez, C., Middag, R., Rolison, J. M., Tanhua, T., Ussher, S., & Connelly, D. Anthropogenic Signatures of Lead in the Northeast Atlantic [Anthropogenic signatures of lead in North West European margin]. United States. doi:10.1002/2017GL076825.
Rusiecka, D., Gledhill, M., Milne, A., Achterberg, E. P., Annett, A. L., Atkinson, S., Birchill, A., Karstensen, J., Lohan, M., Mariez, C., Middag, R., Rolison, J. M., Tanhua, T., Ussher, S., and Connelly, D. Mon . "Anthropogenic Signatures of Lead in the Northeast Atlantic [Anthropogenic signatures of lead in North West European margin]". United States. doi:10.1002/2017GL076825. https://www.osti.gov/servlets/purl/1466150.
@article{osti_1466150,
title = {Anthropogenic Signatures of Lead in the Northeast Atlantic [Anthropogenic signatures of lead in North West European margin]},
author = {Rusiecka, D. and Gledhill, M. and Milne, A. and Achterberg, E. P. and Annett, A. L. and Atkinson, S. and Birchill, A. and Karstensen, J. and Lohan, M. and Mariez, C. and Middag, R. and Rolison, J. M. and Tanhua, T. and Ussher, S. and Connelly, D.},
abstractNote = {Anthropogenic activities have resulted in enhanced lead (Pb) emissions to the environment over the past century, mainly through the combustion of leaded gasoline. Here we present the first combined dissolved (DPb), labile (LpPb), and particulate (PPb) Pb data set from the Northeast Atlantic (Celtic Sea) since the phasing out of leaded gasoline in Europe. Concentrations of DPb in surface waters have decreased by fourfold over the last four decades. We demonstrate that anthropogenic Pb is transported from the Mediterranean Sea over long distances (>2,500 km). Benthic DPb fluxes exceeded the atmospheric Pb flux in the region, indicating the importance of sediments as a contemporary Pb source. A strong positive correlation between DPb, PPb, and LpPb indicates a dynamic equilibrium between the phases and the potential for particles to “buffer” the DPb pool. This study provides insights into Pb biogeochemical cycling and demonstrates the potential of Pb in constraining ocean circulation patterns.},
doi = {10.1002/2017GL076825},
journal = {Geophysical Research Letters},
number = 6,
volume = 45,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2018},
month = {Mon Mar 05 00:00:00 EST 2018}
}

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