Laudon, Hjalmar
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences
Abstract
The aim of this study was to explore how atmospherically derived soil pollution is affected by environmental processes at two typical boreal catchment landscape type settings: wetlands and forested areas. Measurements of hydrophobic organic compounds (HOCs) in forest soil and peat from an oligotrophic mire at various depths were performed at a remote boreal catchment in northern Sweden. HOCs in peat were evenly distributed throughout the body of the mire while levels of HOCs in the forest soil increased with increased amount of organic matter. Evaluation of HOC composition by principal component analysis (PCA) showed distinct differences between surface soils and deeper soil and peat samples. This was attributed to vertical transport, degradation and/or shifting sources over time. The calculated net vertical transport differed between surface layers (0.3%) and deeper soils (8.0%), suggesting that vertical transport conditions and processes differ in the deeper layers compared to the surface layers. (C) 2010 Elsevier Ltd. All rights reserved.
Keywords
Dioxin; PCDD/F; PCB; HOCs; Diffuse pollution; Boreal catchment
Published in
Environmental Pollution
2010, volume: 158, number: 7, pages: 2518-2525
Publisher: ELSEVIER SCI LTD
SLU Authors
UKÄ Subject classification
Environmental Sciences and Nature Conservation
Publication identifier
- DOI: https://doi.org/10.1016/j.envpol.2010.03.009
Permanent link to this page (URI)
https://res.slu.se/id/publ/59968