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Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data

Environmental Pollution

By:
, , , , , , , ,
DOI: 10.1016/j.envpol.2006.06.033

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Abstract

The mechanistic bioaccumulation model OMEGA (Optimal Modeling for Ecotoxicological Applications) is used to estimate accumulation of zinc (Zn), copper (Cu), cadmium (Cd) and lead (Pb) in the earthworm Lumbricus rubellus. Our validation to field accumulation data shows that the model accurately predicts internal cadmium concentrations. In addition, our results show that internal metal concentrations in the earthworm are less than linearly (slope < 1) related to the total concentration in soil, while risk assessment procedures often assume the biota-soil accumulation factor (BSAF) to be constant. Although predicted internal concentrations of all metals are generally within a factor 5 compared to field data, incorporation of regulation in the model is necessary to improve predictability of the essential metals such as zinc and copper. ?? 2006 Elsevier Ltd. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data
Series title:
Environmental Pollution
DOI:
10.1016/j.envpol.2006.06.033
Volume
146
Issue:
2
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Pollution
First page:
428
Last page:
436
Number of Pages:
9