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EC number: 932-389-6 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
48 h EC50=0.38 µg/L to daphnids (Daphnia magna), Williams&Thompson
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 0.38 µg/L
Additional information
The 24 and 48 hour median effective concentrations of cyhalothrin to freshwater crustaceans (Daphnia magna) were determined under static test conditions at a temperature of 20.0±1.0 °C. The protocol is comparable to OECD 202 standards and was conducted under GLP.
Acetone was used as a solvent in preparation of the test solutions. The maximum concentration present in the test solutions was 0.5 mL/L.
The test animals were during 48 hours at 20.0±1.0 °C exposed to nominal test item concentrations of 0.032, 0.056, 0.1, 0.18, 0.32, 0.56, 1.0, 1.8, 3.2, and 10.0 µg/L and in parallel to control and solvent control. The analytical dose verification revealed 69.6 to 118.8% recovery at the beginning and 45.6 to 75.0% at the end of exposure and the losses amounted more than 20% to the initial measurement in most cases. However the effects were assigned to the measured initial concentrations, which results in slightly elevated threshold concentrations if compared to recent standards of OECD 202 (2004).The median effective concentration (EC50) was defined as the concentration, calculated from the data obtained, resulting in immobilisation of 50% of the daphnids in the time period specified. It is to remark that immobilisation was assessed without agitation of the test vessels which results in slightly reduced threshold concentrations if compared to recent standards of OECD 202 (2004). Thus the deviations to recent standards may compensate each other and are accordingly considered of little impact on the results, which are regarded valid and conclusive.The values obtained, and their 95% confidence limits were: 24 hour EC50 = 2.4 (1.7 - 3.3) 48 hour EC50 as 0.38 (0.29 - 0.50) µg/L. These values were based on the measured concentrations at the start of the test.
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