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Diss Factsheets
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EC number: 231-100-4 | CAS number: 7439-92-1
- 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
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The estimation are based on model that has been developed to assess the long-term fate and effects of metals in the environment.
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Lead addition was modeled in the TICKET-UWM simulations as a single instantaneous load addition and the removal from the water column was assessed generically simulating a standard lake environment (EUSES). The physical parameters of the generalized lake are based on regional distribution parameters from the EUSES program (RIVM, 2004). Specifically, time variable TICKET-UWM simulations were performed to assess lead removal from the water column relative to the definition of rapid removal for soluble metals of greater than 70% removal in a 28-day period (Institute for Health and Consumer Protection, 2009). In addition, potential remobilization of Pb from the anoxic/oxic sediment to the water column was also assessed.
- GLP compliance:
- no
- Type of study / information:
- Model calculations
Test material
- Reference substance name:
- Lead
- EC Number:
- 231-100-4
- EC Name:
- Lead
- Cas Number:
- 7439-92-1
- Molecular formula:
- Pb
- IUPAC Name:
- lead
- Test material form:
- other: soluble lead
Constituent 1
Results and discussion
Applicant's summary and conclusion
- Conclusions:
- It can therefore be concluded that for typical conditions in Europe, lead-ions are rapidly removed from the water-column (>70% within 28 days). Moreover, remobilization of Pb from the sediments to the water column is insignificant.
Note that, because of a lack of scientific consensus on the use of rapid removal concepts for the purpose of classification and labelling, the substance was assumed to not be readily biodegradable (i.e. no rapid environmental transformation) when setting M factors and in self-classification. - Executive summary:
Time variable TICKET-UWM simulations were performed to assess lead removal from the water column relative to the definition of rapid removal for soluble metals of greater than 70% removal in a 28-day period. The following conclusion could be formulated:
- For a standard lake environment consisting of the EUSES model lake parameters, lead removal from the water column satisfies the definition for rapid removal of 70% dissolved lead removal in 28 days;
- For a standard lake environment consisting of the EUSES model lake parameters, assessed at pH 6 to 7, lead removal from the water column satisfies the definition for rapid removal of 70% dissolved lead removal in 28 days;
- The potential for remobilization from anoxic and oxic sediments, quantified by comparing water column lead concentrations resulting from sediment feedback to the 70% removal concentration, is insignificant
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