Lead Contamination of Subarctic Lakes and Its Response to Reduced Atmospheric Fallout: Can the Recovery Process Be Counteracted by the Ongoing Climate Change?
(2010) In Environmental Science & Technology 44. p.2335-2340- Abstract
- Can a climate-triggered export of old contaminants from the soil alter the lead (Pb) contaminant burden of subarctic lakes? To address this question, we reconstructed the pollution history of three high latitude lakes situated in a region where a recent climatic shift has occurred. Dated sediment records were used as archives of past Pb inputs to the lakes, where the difference in the (206)Pb/(207)Pb ratio between atmospheric contaminants ((206)Pb/(207)Pb ratio <1.16) and geogenic Pb in the catchment soil ((206)Pb/(207)Pb ratio >1.22) were used to trace fluxes of Pb contaminants. Lead contaminants were found in sediments deposited since Roman times. A significant export of Pb from the soil contaminant pool is indicated in two of the... (More)
- Can a climate-triggered export of old contaminants from the soil alter the lead (Pb) contaminant burden of subarctic lakes? To address this question, we reconstructed the pollution history of three high latitude lakes situated in a region where a recent climatic shift has occurred. Dated sediment records were used as archives of past Pb inputs to the lakes, where the difference in the (206)Pb/(207)Pb ratio between atmospheric contaminants ((206)Pb/(207)Pb ratio <1.16) and geogenic Pb in the catchment soil ((206)Pb/(207)Pb ratio >1.22) were used to trace fluxes of Pb contaminants. Lead contaminants were found in sediments deposited since Roman times. A significant export of Pb from the soil contaminant pool is indicated in two of the lakes surrounded by near-shore permafrost soils. Here, levels of Pb contaminants and (206)Pb/(207)Pb ratios of sediments deposited after the 1970s appear not to have been strongly affected by the >/=90% reduction in atmospheric deposition rates and increasing (206)Pb/(207)Pb ratios of atmospheric Pb since the 1990s. We concluded that soil processes stimulated by the ongoing climate change at high latitudes might work counteractive to efforts to reduce contaminant levels in subarctic lakes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1552481
- author
- Klaminder, Jonatan ; Hammarlund, Dan LU ; Kokfelt, Ulla LU ; Vonk, Jorien E and Bigler, Christian
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Environmental Science & Technology
- volume
- 44
- pages
- 2335 - 2340
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000275993700019
- pmid:20170181
- scopus:77950411959
- pmid:20170181
- ISSN
- 1520-5851
- DOI
- 10.1021/es903025z
- project
- Climate Initiative
- language
- English
- LU publication?
- yes
- id
- 1b775221-9ab6-4cc0-ade3-008ecadad807 (old id 1552481)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/20170181?dopt=Abstract
- date added to LUP
- 2016-04-01 14:16:49
- date last changed
- 2022-04-14 08:58:48
@article{1b775221-9ab6-4cc0-ade3-008ecadad807,
abstract = {{Can a climate-triggered export of old contaminants from the soil alter the lead (Pb) contaminant burden of subarctic lakes? To address this question, we reconstructed the pollution history of three high latitude lakes situated in a region where a recent climatic shift has occurred. Dated sediment records were used as archives of past Pb inputs to the lakes, where the difference in the (206)Pb/(207)Pb ratio between atmospheric contaminants ((206)Pb/(207)Pb ratio <1.16) and geogenic Pb in the catchment soil ((206)Pb/(207)Pb ratio >1.22) were used to trace fluxes of Pb contaminants. Lead contaminants were found in sediments deposited since Roman times. A significant export of Pb from the soil contaminant pool is indicated in two of the lakes surrounded by near-shore permafrost soils. Here, levels of Pb contaminants and (206)Pb/(207)Pb ratios of sediments deposited after the 1970s appear not to have been strongly affected by the >/=90% reduction in atmospheric deposition rates and increasing (206)Pb/(207)Pb ratios of atmospheric Pb since the 1990s. We concluded that soil processes stimulated by the ongoing climate change at high latitudes might work counteractive to efforts to reduce contaminant levels in subarctic lakes.}},
author = {{Klaminder, Jonatan and Hammarlund, Dan and Kokfelt, Ulla and Vonk, Jorien E and Bigler, Christian}},
issn = {{1520-5851}},
language = {{eng}},
pages = {{2335--2340}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Environmental Science & Technology}},
title = {{Lead Contamination of Subarctic Lakes and Its Response to Reduced Atmospheric Fallout: Can the Recovery Process Be Counteracted by the Ongoing Climate Change?}},
url = {{http://dx.doi.org/10.1021/es903025z}},
doi = {{10.1021/es903025z}},
volume = {{44}},
year = {{2010}},
}