Air-Boreal Forest Transfer and Processing of Polychlorinated Biphenyls
(2009) In Environmental Science & Technology 43(14). p.5282-5289- Abstract
- The exchange of persistent organic pollutants (POPS) between different compartments of a typical mature boreal forest was investigated. The study focused on fluxes of polychlorinated biphenyls (PCBs) between the atmosphere, vegetation and soil, and within the soil to assess whether this type of forest acts as a final sink-or temporary repository for POPs. The study, at a Swedish site, suggested total PCB air-to-forest floor fluxes of 1.4 mu g m(-2) year(-1). Much of this could be attributed to compounds bound to particles that may originate from needle surfaces. Degradation half-lives in soil between 6.4 and 30 years for tetra- to hepta-PCBs were obtained using a mass balance approach. This field data-based method derived degradation rates... (More)
- The exchange of persistent organic pollutants (POPS) between different compartments of a typical mature boreal forest was investigated. The study focused on fluxes of polychlorinated biphenyls (PCBs) between the atmosphere, vegetation and soil, and within the soil to assess whether this type of forest acts as a final sink-or temporary repository for POPs. The study, at a Swedish site, suggested total PCB air-to-forest floor fluxes of 1.4 mu g m(-2) year(-1). Much of this could be attributed to compounds bound to particles that may originate from needle surfaces. Degradation half-lives in soil between 6.4 and 30 years for tetra- to hepta-PCBs were obtained using a mass balance approach. This field data-based method derived degradation rates of POPS in background soils, although it may have underestimated the persistence of the heavy PCB congeners. Compounds reaching the forest soil appear to be stored efficiently and degraded slowly. As a first approximation, applying the findings from this study site to boreal forests on a global scale suggests that 2-21% (depending on the congener) of the estimated global atmospheric emission deposits to these ecosystems. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1461691
- author
- Moeckel, Claudia ; Nizzetto, Luca ; Strandberg, Bo ; Lindroth, Anders LU and Jones, Kevin C.
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Environmental Science & Technology
- volume
- 43
- issue
- 14
- pages
- 5282 - 5289
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000268138000021
- scopus:67650462913
- ISSN
- 1520-5851
- DOI
- 10.1021/es803505u
- language
- English
- LU publication?
- yes
- id
- a9f99e48-a496-4420-b2ae-d30614471a29 (old id 1461691)
- date added to LUP
- 2016-04-01 13:41:29
- date last changed
- 2022-04-06 06:27:56
@article{a9f99e48-a496-4420-b2ae-d30614471a29,
abstract = {{The exchange of persistent organic pollutants (POPS) between different compartments of a typical mature boreal forest was investigated. The study focused on fluxes of polychlorinated biphenyls (PCBs) between the atmosphere, vegetation and soil, and within the soil to assess whether this type of forest acts as a final sink-or temporary repository for POPs. The study, at a Swedish site, suggested total PCB air-to-forest floor fluxes of 1.4 mu g m(-2) year(-1). Much of this could be attributed to compounds bound to particles that may originate from needle surfaces. Degradation half-lives in soil between 6.4 and 30 years for tetra- to hepta-PCBs were obtained using a mass balance approach. This field data-based method derived degradation rates of POPS in background soils, although it may have underestimated the persistence of the heavy PCB congeners. Compounds reaching the forest soil appear to be stored efficiently and degraded slowly. As a first approximation, applying the findings from this study site to boreal forests on a global scale suggests that 2-21% (depending on the congener) of the estimated global atmospheric emission deposits to these ecosystems.}},
author = {{Moeckel, Claudia and Nizzetto, Luca and Strandberg, Bo and Lindroth, Anders and Jones, Kevin C.}},
issn = {{1520-5851}},
language = {{eng}},
number = {{14}},
pages = {{5282--5289}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Environmental Science & Technology}},
title = {{Air-Boreal Forest Transfer and Processing of Polychlorinated Biphenyls}},
url = {{http://dx.doi.org/10.1021/es803505u}},
doi = {{10.1021/es803505u}},
volume = {{43}},
year = {{2009}},
}