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Title of Journal: Arch Environ Contam Toxicol

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Abbravation: Archives of Environmental Contamination and Toxicology

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Springer-Verlag

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DOI

10.1002/app.1978.070220827

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1432-0703

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Joint Toxicity of Triazine Herbicides and Organoph

Authors: L J Schuler A J Trimble J B Belden M J Lydy
Publish Date: 2005/06/28
Volume: 49, Issue: 2, Pages: 173-177
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Abstract

A series of recent studies demonstrated that the triazine herbicide atrazine although not itself acutely toxic potentiated the toxicity of certain organophosphate insecticides OPs to the midge Chironomus tentans In the current study a series of triazine herbicides and triazine herbicide degradation products were tested to determine if other triazines potentiate OP toxicity to midges Chlorpyrifos and diazinon were the OPs tested Toxicity tests were conducted using a factorial design and analysis of variance to statistically determine if each triazine had an effect on expected toxicity Logprobit procedures were also used to evaluate the magnitude of change in median effective concentration EC50 values during coexposure with each triazine All of the triazine herbicides tested atrazine simazine cyanazine and hexazinone were capable of potentiating the toxicity of the OPs whereas the degradation products striazine deethylatrazine and deisopropylatrazine had less effect In most cases a triazine concentration of 100 μg/L was necessary to significantly increase OP toxicity and higher concentrations of triazine caused a greater degree of potentiation Changes in EC50 values ranged from no change to a 25fold increase in toxicity Generally EC50 values changed by less than a factor of 2 indicating that the effect may be of limited concern in regard to future risk assessments of OPs


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  2. Rainbow Trout ( Oncorhynchus mykiss ) and Brook Trout ( Salvelinus fontinalis ) 7-Day Survival and Growth Test Method
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  4. Phytoremediation of Water Polluted by Thallium, Cadmium, Zinc, and Lead with the Use of Macrophyte Callitriche cophocarpa
  5. Monitoring of Endocrine-Disrupting Compounds in Surface Water and Sediments of the Three Gorges Reservoir Region, China
  6. Monitoring Environmental Pollutants in the Vicinity of a Cement Plant: A Temporal Study
  7. Organochlorine and Heavy-Metal Contaminants in Wild Mammals and Birds of Urbino-Pesaro Province, Italy: An Analytic Overview for Potential Bioindicators
  8. Biomarkers Study for Sediment Quality Assessment in Spanish Ports Using the Crab Carcinus maenas and the Clam Ruditapes philippinarum
  9. Determination of the Mercury Fraction Linked to Protein of Muscle and Liver Tissue of Tucunaré ( Cichla spp.) from the Amazon Region of Brazil
  10. Identification and Expression Profiles of IL-8 in Bighead Carp ( Aristichthys nobilis ) in Response to Microcystin-LR
  11. Impacts of Sediment Organic Matter Content and pH on Ecotoxicity of Coexposure of TiO 2 Nanoparticles and Cadmium to Freshwater Snails Bellamya aeruginosa
  12. Phthalates and Parabens in Personal Care Products From China: Concentrations and Human Exposure
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