Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes
6 pages, 5 figures, 5 tables.-- PMID: 12636263 [PubMed].-- Printed version published Feb 15, 2003.-- Supporitng information available at: http://pubs.acs.org/doi/suppl/10.1021/es025809l This paper presents data from a survey of polychlorinated biphenyls (PCBs) and hexachlorobenzene (HCB) concentrati...
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ftcsic:oai:digital.csic.es:10261/19452 2024-02-11T10:04:28+01:00 Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes Meijer, Sandra N. Ockenden, Wendy Sweetman, Andrew J. Breivik, K. Grimalt, Joan O. Jones, Kevin C. 2003-01-16 22195 bytes application/pdf http://hdl.handle.net/10261/19452 https://doi.org/10.1021/es025809l en eng American Chemical Society http://dx.doi.org/10.1021/es025809l Environmental Science and Technology 37(4): 667–672 (2003) 0013-936X http://hdl.handle.net/10261/19452 doi:10.1021/es025809l 1520-5851 none Polychlorinated biphenyls (PCBs) Hexachlorobenzene (HCB) Persistent organic pollutants (POPs) Atmospheric emissions Surface soils artículo http://purl.org/coar/resource_type/c_6501 2003 ftcsic https://doi.org/10.1021/es025809l 2024-01-16T09:24:47Z 6 pages, 5 figures, 5 tables.-- PMID: 12636263 [PubMed].-- Printed version published Feb 15, 2003.-- Supporitng information available at: http://pubs.acs.org/doi/suppl/10.1021/es025809l This paper presents data from a survey of polychlorinated biphenyls (PCBs) and hexachlorobenzene (HCB) concentrations in 191 global background surface (0−5 cm) soils. Differences of up to 4 orders of magnitude were found between sites for PCBs. The lowest and highest PCB concentrations (26 and 97 000 pg/g dw) were found in samples from Greenland and mainland Europe (France, Germany, Poland), respectively. Background soil PCB concentrations were strongly influenced by proximity to source region and soil organic matter (SOM) content. Most (>80%) of the estimated soil PCB burden remains in the “global source region” of the Northern Hemisphere (NH) temperate latitudes (30−60° N) or in the OM-rich soils just north of that. %SOM correlated with PCB and HCB in the global data set, with the correlation coefficients being greater for HCB and the lighter PCBs than for heavier homologues. OM-rich soils in the NH consistently contained the highest burdens; such soils are a key global compartment for these compounds. Evidence for global fractionation of PCBs was found in the subset of soils from latitudes north of the global source region but was not discerned with the global data set. The full data set was used to estimate the burden for individual congeners/homologues in surface background soils and a global soil total PCB burden of 21 000 t. The significance of the inventory is briefly discussed in relation to the latest estimates of global production and atmospheric emission. Is grateful to Eurochlor for funding at Lancaster University for work on HCB and to the Dow Chemical Company Foundation for financially supporting research on the global cycling of POPs. K.B. acknowledges financial support from the European Chemical Industry Council (CEFIC-LRI). Peer reviewed Article in Journal/Newspaper Greenland Digital.CSIC (Spanish National Research Council) Greenland Environmental Science & Technology 37 4 667 672 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Polychlorinated biphenyls (PCBs) Hexachlorobenzene (HCB) Persistent organic pollutants (POPs) Atmospheric emissions Surface soils |
spellingShingle |
Polychlorinated biphenyls (PCBs) Hexachlorobenzene (HCB) Persistent organic pollutants (POPs) Atmospheric emissions Surface soils Meijer, Sandra N. Ockenden, Wendy Sweetman, Andrew J. Breivik, K. Grimalt, Joan O. Jones, Kevin C. Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
topic_facet |
Polychlorinated biphenyls (PCBs) Hexachlorobenzene (HCB) Persistent organic pollutants (POPs) Atmospheric emissions Surface soils |
description |
6 pages, 5 figures, 5 tables.-- PMID: 12636263 [PubMed].-- Printed version published Feb 15, 2003.-- Supporitng information available at: http://pubs.acs.org/doi/suppl/10.1021/es025809l This paper presents data from a survey of polychlorinated biphenyls (PCBs) and hexachlorobenzene (HCB) concentrations in 191 global background surface (0−5 cm) soils. Differences of up to 4 orders of magnitude were found between sites for PCBs. The lowest and highest PCB concentrations (26 and 97 000 pg/g dw) were found in samples from Greenland and mainland Europe (France, Germany, Poland), respectively. Background soil PCB concentrations were strongly influenced by proximity to source region and soil organic matter (SOM) content. Most (>80%) of the estimated soil PCB burden remains in the “global source region” of the Northern Hemisphere (NH) temperate latitudes (30−60° N) or in the OM-rich soils just north of that. %SOM correlated with PCB and HCB in the global data set, with the correlation coefficients being greater for HCB and the lighter PCBs than for heavier homologues. OM-rich soils in the NH consistently contained the highest burdens; such soils are a key global compartment for these compounds. Evidence for global fractionation of PCBs was found in the subset of soils from latitudes north of the global source region but was not discerned with the global data set. The full data set was used to estimate the burden for individual congeners/homologues in surface background soils and a global soil total PCB burden of 21 000 t. The significance of the inventory is briefly discussed in relation to the latest estimates of global production and atmospheric emission. Is grateful to Eurochlor for funding at Lancaster University for work on HCB and to the Dow Chemical Company Foundation for financially supporting research on the global cycling of POPs. K.B. acknowledges financial support from the European Chemical Industry Council (CEFIC-LRI). Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Meijer, Sandra N. Ockenden, Wendy Sweetman, Andrew J. Breivik, K. Grimalt, Joan O. Jones, Kevin C. |
author_facet |
Meijer, Sandra N. Ockenden, Wendy Sweetman, Andrew J. Breivik, K. Grimalt, Joan O. Jones, Kevin C. |
author_sort |
Meijer, Sandra N. |
title |
Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
title_short |
Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
title_full |
Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
title_fullStr |
Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
title_full_unstemmed |
Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes |
title_sort |
global distribution and budget of pcbs and hcb in background surface soils: implications for sources and environmental processes |
publisher |
American Chemical Society |
publishDate |
2003 |
url |
http://hdl.handle.net/10261/19452 https://doi.org/10.1021/es025809l |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
http://dx.doi.org/10.1021/es025809l Environmental Science and Technology 37(4): 667–672 (2003) 0013-936X http://hdl.handle.net/10261/19452 doi:10.1021/es025809l 1520-5851 |
op_rights |
none |
op_doi |
https://doi.org/10.1021/es025809l |
container_title |
Environmental Science & Technology |
container_volume |
37 |
container_issue |
4 |
container_start_page |
667 |
op_container_end_page |
672 |
_version_ |
1790601061266882560 |