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Recent Increased Loading of Carbonaceous Pollution from Biomass Burning in the Baltic Sea

Ljung, Karl (author)
Lund University,Lunds universitet,Miljövetenskap,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Environmental Science,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
Schoon, Petra L. (author)
No affiliation available (private)
Rudolf, Marcus (author)
Lund University
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Charrieau, Laurie M. (author)
No affiliation available (private)
Ni, Sha (author)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
Filipsson, Helena L. (author)
Lund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science
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 (creator_code:org_t)
2022-09-23
2022
English.
In: ACS Omega. - : American Chemical Society (ACS). - 2470-1343. ; 7, s. 35102-35108
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Black carbon (BC), spheroidal carbonaceous particles (SCP), and polycyclic aromatic hydrocarbons (PAH) are carbonaceous pollutants affecting the climate, environment, and human health. International regulations limit their emissions, and the present emissions are followed by monitoring programs. However, the monitoring programs have limited spatio-temporal coverage and only span the last decades. We can extend the knowledge of historical emission rates by measuring pollution levels in radiometrically dated marine and lacustrine sediment sequences. Here we present measurements of BC, SCP, and PAH from a sediment sequence sampled in the Öresund strait, between Denmark and Sweden and dated back to CE 1850. Our data show a massive increase in the burial rates of all measured pollutants starting in the 1940s. The pollution deposition peaked in the 1970-1980s and declined through the 1990s. However, the declining trend was reversed in the 2000s. Source appointment of PAHs shows a relatively higher contribution of emissions from wood-burning since CE 2000. This coincides with a change towards the increased use of biomass for both municipal and regional energy production in Scandinavia. Our results demonstrate that changes in energy production have caused changes in the delivery of carbonaceous pollution to marine environments. The increase in particle emissions from wood burning is potentially posing a future environmental and health risk.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)

Keyword

black carbon
marine sediment
soot
biomass

Publication and Content Type

art (subject category)
ref (subject category)

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Ljung, Karl
Schoon, Petra L.
Rudolf, Marcus
Charrieau, Lauri ...
Ni, Sha
Filipsson, Helen ...
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NATURAL SCIENCES
NATURAL SCIENCES
and Earth and Relate ...
and Climate Research
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ACS Omega
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Lund University

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