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Diss Factsheets
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EC number: 204-310-9 | CAS number: 119-27-7
- 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 fish
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: USEPA 821-R-02-013
- Version / remarks:
- 4th
- Deviations:
- not specified
- GLP compliance:
- not specified
- Remarks:
- Study conducted to a high scientific standard and findings presented in a comprehensive test report.
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Holston Army Ammunition Plant, Lot #BAE10H281-008
- Expiration date of the lot/batch: not specified
- Purity test date: not specified
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: 4°C until analysis
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: dissolution in freswater during 48h using a magnetic stirring bar - Analytical monitoring:
- yes
- Details on sampling:
- - Concentrations (%): 100, 50, 25, 12.5 and 6.25
- Nominal concentrations ranged from 0 - 25 mg/L
- Sample storage conditions before analysis: 4°C - Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: Dissolution during 48h in freshwater using a magnetic stirring bar
- Eluate: Freshwater
- Controls: Negative control
- Concentration of vehicle in test medium: analytical measurement
- Evidence of undissolved material: no undissolved material - Test organisms (species):
- Pimephales promelas
- Details on test organisms:
- TEST ORGANISM
- Common name: Pimephales promelas
- Strain: not specified
- Source: Aquatic Biosystems (Fort Collins, Colorado)
- Age at study initiation: not specified
- Length at study initiation: not specified
- Weight at study initiation: not specified
- Method of breeding: not specified
- Maintenance of the brood fish: not specified
ACCLIMATION
- Acclimation period: not specified
- Acclimation conditions: not specified
- Type and amount of food during acclimation: not specified
- Feeding frequency during acclimation: not specified
- Health during acclimation (any mortality observed): not specified
FEEDING DURING TEST
- Food type: Artemia sp. nauplii
- Amount: ration
- Frequency: 2 times per day - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
- Hardness:
- 80 mg/L CaCO3
- Test temperature:
- 23.4 - 24.5
- pH:
- 6.85 - 7.99
- Dissolved oxygen:
- 7.3 - 8.0 mg/L
- Salinity:
- not specified
- Conductivity:
- 275 - 318 μS/cm
- Nominal and measured concentrations:
- - Nominal Concentrations (mg/L): 0, 6, 12, 25, 50 and 100
- Measured Concentrations (mg/L): 0, 7.1, 13, 28, 74 and 120 - Details on test conditions:
- TEST SYSTEM
- Test vessel: not specified
- Material, size, headspace, fill volume: not specified
- Aeration: not specified
- Renewal rate of test solution (frequency/flow rate): 80% per day
- No. of organisms per vessel: not specified
- No. of vessels per concentration (replicates): 5
- No. of vessels per control (replicates): 5
OTHER TEST CONDITIONS
- Adjustment of pH: not specified
- Photoperiod: not specified
- Light intensity: not specified
TEST CONCENTRATIONS
- Spacing factor for test concentrations: 2
- Test concentrations mg/L): 0, 6.25, 12.5, 25, 50, 100 - Reference substance (positive control):
- yes
- Remarks:
- KCl
- Key result
- Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- >= 33 - <= 41 mg/L
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Key result
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 13 mg/L
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Key result
- Duration:
- 48 h
- Dose descriptor:
- LOEC
- Effect conc.:
- 28 mg/L
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- none
- Results with reference substance (positive control):
- - Results with reference substance valid? Yes
- LC50: 48h-LC50: 0.78 mg/L - Reported statistics and error estimates:
- Survival data were arcsine square-root transformed prior to statistical analysis. Data normality (Kolmogorov–Smirnov test), homogeneity (Levene’s test), and treatment differences were compared to the reference (one way ANOVA and Dunn’s or Dunnett’s Methods) and statistical significance was determined at α = 0.05 using SigmaStat software (SPSS, Chicago, Illinois, USA). When normality was not achieved, the nonparametric Kruskal–Wallis one-way ANOVA on ranks was applied. The lethal median concentration producing 50% mortality (LC50) and inhibition concentrations (IC50, IC25) for sublethal endpoints were determined by the trimmed Spearman–Karber method (Toxcalc®, Version 5.0, Tidepool Scientific Software, McKinleyville, California). The LC50 and IC25 values are presented with 95% confidence limits in parentheses. No observableeffect concentrations (NOEC) and lowest observable effect concentrations (LOEC) were also calculated using ToxCalc v5.0 and confirmed by one-way ANOVA and Dunn’s or Dunnett’s Methods. Maximum allowable concentrations(MATC), also known as the chronic value (ChV), were calculated as the geometric mean of the NOEC and LOEC. The acute-to-chronic ratio (ACR) was calculated as the 48-hr LC50 divided by the MATC.
- Sublethal observations / clinical signs:
Nominal (mg/L) Measured test initiation (mg/L) Measured test termination (mg/L) Mean survival 0 <0.01 <0.01 100±0 6 7.1 6.6 100±0 12 13 14 100±0 25 28 28 75±6 50 74 74 0±0 100 120 120 0±0 - Validity criteria fulfilled:
- yes
- Conclusions:
- The 48-hr acute toxicity of DNAN was found to 33 mg/L for the Pimephales promelas.
- Executive summary:
Acute and chronic aquatic toxicity of DNAN was investigated using standard fish (Pimephales promelas) models. Chemical analysis of test water indicated that DNAN concentrations were relatively stable during the bioassays. Acute toxicity presented a 48-hr lethal median concentrations (LC50) of 33 mg/L DNAN. Chronic toxicity tests indicated that fish survival (7-day LC50 = 10 mg/L) was significantly more sensitive to DNAN relative to the invertebrate (no significant impact on survival at 24 mg/L). However, the reproduction endpoint for the invertebrate was significantly more sensitive to DNAN than survival. When assessing the most sensitive chronic endpoints, the two test species indicated similar chronic toxicity, with lowest observable adverse impacts ranging from 10 to 12 mg/L DNAN and median effects on sublethal endpoints (growth, reproduction) ranging from 11 to 15 mg/L DNAN. Chronic no-effect concentrations ranged from approximately 6 to 8 mg/L DNAN.
Reference
Description of key information
The 48-hr acute toxicity of DNAN (LC50) was found to be 33 mg/L for the Pimephales promelas.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 33 mg/L
Additional information
A determination of the acute toxicity to fish of DNAN was conducted (U.S. Army Engineer Research and Development Center, ERDC/EL TR-13-2, 2013). Tests were conducted in accordance with standard guidance (U.S. Environmental Protection Agency (USEPA) 2002a, EPA-821-R-02-012).
Groups of Pimephales promelas were initially exposed to a nominal concentration range of 0 - 100 mg/L DNAN in MHRW, using a 90% dilution series (100, 10, 1, 0.1, 0.01%). Based on range-finding results, definitive acute toxicity tests were conducted in the nominal concentration range of 0 – 100 mg/L DNAN, using a 50% dilution series (100, 50, 25, 13, 6 and 0 %). The measurement endpoint was survival after 48-hr exposure.
It was concluded that the 48-hr LC50 for Pimephales promelas ranged from 33 – 41 mg/L.
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