Toxicity of pesticides in wastewater: a comparative assessment of rapid bioassays

Acute toxicity of pesticides in water was assessed singly and in mixtures using various responses of the luminescent bacterium Vibrio fischeri, the aquatic invertebrate Daphnia magna, and the MitoScan™ assay. The latter utilized fragmented mitochondria to enzymatically convert oxidized β-nicotinamid...

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Bibliographic Details
Published in:	Analytica chimica acta Vol. 426; no. 2; pp. 289 - 301
Main Authors:	Fernández-Alba, Amadeo R, Guil, Loli Hernando, López, Gema Dı́az, Chisti, Yusuf
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Amsterdam Elsevier B.V 01-01-2001 Elsevier
Subjects:	Analytical chemistry Applied sciences Carbofuran Chemistry Chromatographic methods and physical methods associated with chromatography Cyromazine Daphnia magna Exact sciences and technology Fenamiphos Formetanate Freshwater Industrial wastewaters MitoScan Other chromatographic methods Pesticides Pollution Propamocarb Toxicity Vibrio fischeri Wastewaters Water treatment and pollution Carbofuran Vibrio fischeri Fenamiphos Toxicity Cyromazine Pesticides MitoScan Propamocarb Daphnia magna Formetanate Cytotoxicity inhibition test Bioluminescence Chemical analysis Ecotoxicology Coupled method Agricultural industry Biological indicator Liquid chromatography Environmental control Multicomponent analysis Industrial waste water Water pollution Mass spectrometry Quantitative analysis
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Summary:	Acute toxicity of pesticides in water was assessed singly and in mixtures using various responses of the luminescent bacterium Vibrio fischeri, the aquatic invertebrate Daphnia magna, and the MitoScan™ assay. The latter utilized fragmented mitochondria to enzymatically convert oxidized β-nicotinamide adenine dinucleotide (NAD +) to its reduced form, NADH. The rate of the conversion being sensitive to the type and concentration of toxicants. The pesticides tested were carbofuran, cyromazine, fenamiphos, formetanate, and propamocarb. The aqueous solubility of all compounds exceeded 320 mg l −1. All the toxicity bioassays were characterized in terms of relative sensitivity and complementarity. Synergistic and antagonistic toxicity effects were observed with pesticide cocktails relative to pure compound toxicities. The D. magna assay was the most sensitive and best able to detect toxic interactions of mixtures. Cyromazine was the least toxic of the pesticides tested.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0003-2670 1873-4324
DOI:	10.1016/S0003-2670(00)00874-6