Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 72, Issue 8, Pages 2096-2101Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2009.08.010
Keywords
Pesticide; Chlorophyll fluorescence; Removal; Phytoremediation; Runoff water; Toxicity
Categories
Funding
- city of Reims
- Agence de l'Eau Seine-Normandie
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The rate of removal of two fungicides (dimethomorph and pyrimethanil) from water by five macrophyte species (L minor, S. polyrhiza, C. aquatica, C palustris and E. canadensis) was assessed in laboratory tests. In order to assure that these studies were performed with healthy plants the effects of the fungicides on chlorophyll fluorescence were studied as well. At exposure concentrations of 600 mu g L-1 the effects of the fungicides on chlorophyll fluorescence were minor, so that this initial concentration level was selected for the fungicide removal rate tests. The removal yields during the 4-d test periods varied from 10% to 18% and 7% to 12% for dimethomorph and pyrimethanil, respectively. The maximum removal rate during the 4-d test period was 48 mu gg(-1) fresh weight (FW) for dimethomorph and 33 mu gg(-1) FW for pyrimethanil. L. minor and S. polyrhiza showed the highest removal efficiency for the two fungicides. (C) 2009 Elsevier Inc. All rights reserved.
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