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

Ljung, Karl LU orcid ; Schoon, Petra L. ; Rudolf, Marcus ; Charrieau, Laurie M. ; Ni, Sha LU and Filipsson, Helena L. LU orcid (2022) In ACS Omega 7. p.35102-35108
Abstract

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... (More)

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.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
black carbon, marine sediment, soot, biomass
in
ACS Omega
volume
7
pages
35102 - 35108
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:36211069
  • scopus:85139492565
ISSN
2470-1343
DOI
10.1021/acsomega.2c04009
project
Drivers and Impacts of Coastal Ocean Acidification
language
English
LU publication?
yes
additional info
Funding Information: The research was funded by FORMAS (grant 2012-2140), the Royal Physiographic Society, and the Oscar and Lili Lamm Foundation. Publisher Copyright: © 2022 The Authors. Published by American Chemical Society.
id
9a04a22c-ac9b-428d-93ba-225fc08466fc
date added to LUP
2022-10-20 08:27:14
date last changed
2024-04-18 15:01:27
@article{9a04a22c-ac9b-428d-93ba-225fc08466fc,
  abstract     = {{<p>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.</p>}},
  author       = {{Ljung, Karl and Schoon, Petra L. and Rudolf, Marcus and Charrieau, Laurie M. and Ni, Sha and Filipsson, Helena L.}},
  issn         = {{2470-1343}},
  keywords     = {{black carbon; marine sediment; soot; biomass}},
  language     = {{eng}},
  pages        = {{35102--35108}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Omega}},
  title        = {{Recent Increased Loading of Carbonaceous Pollution from Biomass Burning in the Baltic Sea}},
  url          = {{http://dx.doi.org/10.1021/acsomega.2c04009}},
  doi          = {{10.1021/acsomega.2c04009}},
  volume       = {{7}},
  year         = {{2022}},
}