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Dynamic modelling of the long term behaviour of cadmium, lead and mercury in Swiss forest soils using CHUM-AM

Published on Jan 1, 2014in Science of The Total Environment5.589
路 DOI :10.1016/j.scitotenv.2013.09.005
Stephan R. Rieder5
Estimated H-index: 5
(ETH Zurich),
Edward Tipping54
Estimated H-index: 54
+ 4 AuthorsBeat Frey39
Estimated H-index: 39
(WSL: Swiss Federal Institute for Forest, Snow and Landscape Research)
Abstract
The applicability of the dynamic soil model CHUM-AM was tested to simulate concentrations of Cd, Pb and Hg in five Swiss forest soils. Soil cores of up to 50 cm depth were sampled and separated int ...
  • References (50)
  • Citations (8)
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Abstract A model assuming first-order losses by evasion and leaching was used to evaluate Hg dynamics in UK soils since 1850. Temporal deposition patterns of Hg were constructed from literature information. Inverse modelling indicated that 30% of 898 rural sites receive Hg only from the global circulation, while in 51% of cases local deposition exceeds global. Average estimated deposition is 16聽渭g聽Hg聽m 鈭2 a 鈭1 to rural soils, 19聽渭g聽Hg聽m 鈭2 a 鈭1 to rural and non-rural soils combined. UK soils cur...
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Abstract Accumulation of total and methyl-Hg by mushrooms and earthworms was studied in thirty-four natural forest soils strongly varying in soil physico-chemical characteristics. Tissue Hg concentrations of both receptors did hardly correlate with Hg concentrations in soil. Both total and methyl-Hg concentrations in tissues were species-specific and dependent on the ecological groups of receptor. Methyl-Hg was low accounting for less than 5 and 8% of total Hg in tissues of mushrooms and earthwo...
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Trends in atmospheric acid deposition and in soil solution acidity from 1995 or later until 2007 were investigated at several forest sites throughout Switzerland to assess the effects of air pollution abatements on deposition and the response of the soil solution chemistry. Deposition of the major elements was estimated from throughfall and bulk deposition measurements at nine sites of the Swiss Long-Term Forest Ecosystem Research network (LWF) since 1995 or later. Soil solution was measured at ...
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Abstract Published chronic toxicity data for Hg(II) added to soils were assembled and evaluated to produce a data set comprising 52 chronic end-points, five each for plants and invertebrates and 42 for microbes. With end-points expressed in terms of added soil Hg(II) contents, Critical Limits were derived from the 5th percentiles of species sensitivity distributions, values of 0.13聽渭g聽(g聽soil) 鈭1 and 3.3聽渭g聽(g聽soil organic matter) 鈭1 being obtained. The latter value exceeds the currently recomme...
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