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The impact of synthetic pyrethroid and organophosphate sheep dip formulations on microbial activity in soil.

Boucard, Tatiana K. and McNeill, Charles and Bardgett, Richard D. and Paynter, Christopher D. and Semple, Kirk T. (2008) The impact of synthetic pyrethroid and organophosphate sheep dip formulations on microbial activity in soil. Environmental Pollution, 153 (1). pp. 207-214. ISSN 0269-7491

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Abstract

Sheep dip formulations containing organophosphates (OPs) or synthetic pyrethroids (SPs) have been widely used in UK, and their spreading onto land has been identified as the most practical disposal method. In this study, the impact of two sheep dip formulations on the microbial activity of a soil was investigated over a 35-d incubation. Microbial utilisation of [1-C-14] glucose, uptake of C-14-activity into the microbial biomass and microbial numbers (CFUs g(-1) soil) were investigated. In control soils and soils amended with 0.01 % sheep dip, after 7 d a larger proportion of added glucose was allocated to microbial biomass rather than respired to CO2. No clear temporal trends were found in soils amended with 0.1% and 1% sheep dips. Both sheep dip formulations at 0.1 % and I % concentrations resulted in a significant increase in CFUs g(-1) soil and [1-C-14] glucose mineralisation rates, as well as a decline in microbial uptake of [1-C-14] glucose, compared to control and 0.01% SP- or OP-amended soils. This study Suggests that the growth, activity, physiological status and/or structure of soil microbial community may be affected by sheep dips. (C) 2007 Elsevier Ltd. All rights reserved.}

Item Type: Article
Journal or Publication Title: Environmental Pollution
Uncontrolled Keywords: sheep dip ; microbial biomass ; C-14-uptake ; substrate utilisation ; soil processes
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 18516
Deposited By: Prof Kirk T. Semple
Deposited On: 27 Oct 2008 13:56
Refereed?: Yes
Published?: Published
Last Modified: 18 Sep 2013 16:17
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/18516

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