کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426075 1309119 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dioxins, PCBs, and HCB in soil and peat profiles from a pristine boreal catchment
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Dioxins, PCBs, and HCB in soil and peat profiles from a pristine boreal catchment
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 158, Issue 7, July 2010, Pages 2518–2525
نویسندگان
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