Return of naturally sourced Pb to Atlantic surface waters

Luke Bridgestock; Tina van de Flierdt; Mark Rehkamper; Maxence Paul; Rob Middag; Angela Milne; Maeve C. Lohan; Alex R. Baker; Rosie Chance; Roulin Khondoker; Stanislav Strekopytov; Emma Humphreys-Williams; Eric P. Achterberg; Micha J. A. Rijkenberg; Loes J. A. Gerringa; Hein J. W. de Baar

doi:10.1038/ncomms12921

Return of naturally sourced Pb to Atlantic surface waters

Luke Bridgestock, Tina van de Flierdt, Mark Rehkamper, Maxence Paul, Rob Middag, Angela Milne, Maeve C. Lohan, Alex R. Baker, Rosie Chance, Roulin Khondoker, Stanislav Strekopytov, Emma Humphreys-Williams, Eric P. Achterberg, Micha J. A. Rijkenberg, Loes J. A. Gerringa, Hein J. W. de Baar

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Abstract

Anthropogenic emissions completely overwhelmed natural marine lead (Pb) sources during the past century, predominantly due to leaded petrol usage. Here, based on Pb isotope measurements, we reassess the importance of natural and anthropogenic Pb sources to the tropical North Atlantic following the nearly complete global cessation of leaded petrol use. Significant proportions of up to 30–50% of natural Pb, derived from mineral dust, are observed in Atlantic surface waters, reflecting the success of the global effort to reduce anthropogenic Pb emissions. The observation of mineral dust derived Pb in surface waters is governed by the elevated atmospheric mineral dust concentration of the North African dust plume and the dominance of dry deposition for the atmospheric aerosol flux to surface waters. Given these specific regional conditions, emissions from anthropogenic activities will remain the dominant global marine Pb source, even in the absence of leaded petrol combustion.

Original language	English
Article number	12921
Journal	Nature Communications
Volume	7
DOIs	https://doi.org/10.1038/ncomms12921
Publication status	Published - 28 Sep 2016

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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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Alex Baker
- Alex.Bakeruea.acuk
- School of Environmental Sciences - Professor of Marine and Atmospheric Chemistry
- Centre for Ocean and Atmospheric Sciences - Member
- ClimateUEA - Member
Person: Member, Research Group Member, Academic, Teaching & Research

Physical and chemical forcing of diazotrophy in the (sub) tropical Atlantic Ocean
Jickells, T., Baker, A. & Chilvers, G.
Natural Environment Research Council
1/09/10 → 31/10/13
Project: Research

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Bridgestock, L., van de Flierdt, T., Rehkamper, M., Paul, M., Middag, R., Milne, A., Lohan, M. C., Baker, A. R., Chance, R., Khondoker, R., Strekopytov, S., Humphreys-Williams, E., Achterberg, E. P., Rijkenberg, M. J. A., Gerringa, L. J. A., & de Baar, H. J. W. (2016). Return of naturally sourced Pb to Atlantic surface waters. Nature Communications, 7, [12921]. https://doi.org/10.1038/ncomms12921

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title = "Return of naturally sourced Pb to Atlantic surface waters",

abstract = "Anthropogenic emissions completely overwhelmed natural marine lead (Pb) sources during the past century, predominantly due to leaded petrol usage. Here, based on Pb isotope measurements, we reassess the importance of natural and anthropogenic Pb sources to the tropical North Atlantic following the nearly complete global cessation of leaded petrol use. Significant proportions of up to 30–50% of natural Pb, derived from mineral dust, are observed in Atlantic surface waters, reflecting the success of the global effort to reduce anthropogenic Pb emissions. The observation of mineral dust derived Pb in surface waters is governed by the elevated atmospheric mineral dust concentration of the North African dust plume and the dominance of dry deposition for the atmospheric aerosol flux to surface waters. Given these specific regional conditions, emissions from anthropogenic activities will remain the dominant global marine Pb source, even in the absence of leaded petrol combustion.",

author = "Luke Bridgestock and {van de Flierdt}, Tina and Mark Rehkamper and Maxence Paul and Rob Middag and Angela Milne and Lohan, {Maeve C.} and Baker, {Alex R.} and Rosie Chance and Roulin Khondoker and Stanislav Strekopytov and Emma Humphreys-Williams and Achterberg, {Eric P.} and Rijkenberg, {Micha J. A.} and Gerringa, {Loes J. A.} and {de Baar}, {Hein J. W.}",

note = "This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article{\textquoteright}s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/",

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doi = "10.1038/ncomms12921",

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T1 - Return of naturally sourced Pb to Atlantic surface waters

AU - Bridgestock, Luke

AU - van de Flierdt, Tina

AU - Rehkamper, Mark

AU - Paul, Maxence

AU - Middag, Rob

AU - Milne, Angela

AU - Lohan, Maeve C.

AU - Baker, Alex R.

AU - Chance, Rosie

AU - Khondoker, Roulin

AU - Strekopytov, Stanislav

AU - Humphreys-Williams, Emma

AU - Achterberg, Eric P.

AU - Rijkenberg, Micha J. A.

AU - Gerringa, Loes J. A.

AU - de Baar, Hein J. W.

N1 - This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PY - 2016/9/28

Y1 - 2016/9/28

N2 - Anthropogenic emissions completely overwhelmed natural marine lead (Pb) sources during the past century, predominantly due to leaded petrol usage. Here, based on Pb isotope measurements, we reassess the importance of natural and anthropogenic Pb sources to the tropical North Atlantic following the nearly complete global cessation of leaded petrol use. Significant proportions of up to 30–50% of natural Pb, derived from mineral dust, are observed in Atlantic surface waters, reflecting the success of the global effort to reduce anthropogenic Pb emissions. The observation of mineral dust derived Pb in surface waters is governed by the elevated atmospheric mineral dust concentration of the North African dust plume and the dominance of dry deposition for the atmospheric aerosol flux to surface waters. Given these specific regional conditions, emissions from anthropogenic activities will remain the dominant global marine Pb source, even in the absence of leaded petrol combustion.

AB - Anthropogenic emissions completely overwhelmed natural marine lead (Pb) sources during the past century, predominantly due to leaded petrol usage. Here, based on Pb isotope measurements, we reassess the importance of natural and anthropogenic Pb sources to the tropical North Atlantic following the nearly complete global cessation of leaded petrol use. Significant proportions of up to 30–50% of natural Pb, derived from mineral dust, are observed in Atlantic surface waters, reflecting the success of the global effort to reduce anthropogenic Pb emissions. The observation of mineral dust derived Pb in surface waters is governed by the elevated atmospheric mineral dust concentration of the North African dust plume and the dominance of dry deposition for the atmospheric aerosol flux to surface waters. Given these specific regional conditions, emissions from anthropogenic activities will remain the dominant global marine Pb source, even in the absence of leaded petrol combustion.

U2 - 10.1038/ncomms12921

DO - 10.1038/ncomms12921

M3 - Article

VL - 7

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 12921

ER -

Return of naturally sourced Pb to Atlantic surface waters

Abstract

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Alex Baker

Projects

Physical and chemical forcing of diazotrophy in the (sub) tropical Atlantic Ocean

Cite this