Joint acute toxicity of tributyl phosphate and triphenyl phosphate to Daphnia magna

In this study, the joint acute toxicity of tributyl phosphate (TBP) and triphenyl phosphate (TPP) was investigated using Daphnia magna as the test organism. The median lethal concentrations for TBP and TPP at 24 and 48 h were 5.48 and 0.51 mg/L, 1.17 and 0.089 mg/L, respectively. When mixed at either equal concentration or various toxic unit ratios, TBP and TPP mixtures displayed an additive toxicity after both 24- and 48-h exposure. This work suggests that the joint acute toxicity of TBP and TPP towards D. magna can be predicted by calculating the toxic units of mixtures.

[1]  L. Deanovic,et al.  Joint acute toxicity of diazinon and chlorpyrifos to Ceriodaphnia dubia , 1997 .

[2]  T. P. Boyle,et al.  Role of exposure mode in the bioavailability of triphenyl phosphate to aquatic organisms , 1991, Archives of environmental contamination and toxicology.

[3]  Peter Haglund,et al.  Organophosphorus flame retardants and plasticizers in air from various indoor environments. , 2005, Journal of environmental monitoring : JEM.

[4]  J. Elphick,et al.  Joint acute toxicity of diazinon and ammonia to Ceriodaphnia dubia , 2001, Environmental toxicology and chemistry.

[5]  Peter Haglund,et al.  Organophosphorus flame retardants and plasticizers in Swedish sewage treatment plants. , 2005, Environmental science & technology.

[6]  Marilynn D. Hoglund,et al.  Use of joint toxic response to define the primary mode of toxic action for diverse industrial organic chemicals , 1995 .

[7]  Joy A McGrath,et al.  Technical basis for narcotic chemicals and polycyclic aromatic hydrocarbon criteria. II. Mixtures and sediments , 2000 .

[8]  K Bester,et al.  Organophosphate flame retardants and plasticisers in wastewater treatment plants. , 2004, Journal of environmental monitoring : JEM.

[9]  E. Fries,et al.  Occurrence of organophosphate esters in surface water and ground water in Germany. , 2001, Journal of environmental monitoring : JEM.

[10]  H. G. Geest,et al.  Mixture toxicity of copper and diazinon to larvae of the mayfly (Ephoron virgo) judging additivity at different effect levels. , 2000 .

[11]  A. Evans,et al.  Toxicity of phenanthrene and lindane mixtures to marine invertebrates , 2007, Environmental toxicology.

[12]  L. Macaskie,et al.  Biodegradation of Tributyl Phosphate by Naturally Occurring Microbial Isolates and Coupling to the Removal of Uranium from Aqueous Solution , 1996 .