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Diss Factsheets
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EC number: 203-972-6 | CAS number: 112-44-7
- 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
Exposure related observations in humans: other data
Administrative data
- Endpoint:
- exposure-related observations in humans: other data
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
- Type of study / information:
- Inddor air quality recommendations for C4- to C11 aldehydes, based on results of indoor air measurements.
- Endpoint addressed:
- not applicable
- Principles of method if other than guideline:
- None available
Test material
- Reference substance name:
- n-undecanal
- IUPAC Name:
- n-undecanal
- Reference substance name:
- Undecanal
- EC Number:
- 203-972-6
- EC Name:
- Undecanal
- Cas Number:
- 112-44-7
- Molecular formula:
- C11H22O
- IUPAC Name:
- undecanal
- Test material form:
- liquid
Constituent 1
Constituent 2
Method
- Ethical approval:
- not applicable
- Details on study design:
- Indoor air monitoring results were used to establish air quality recommendations
- Exposure assessment:
- measured
- Details on exposure:
- TYPE OF EXPOSURE:
Residential indoor air was monitored (children bed room; residential homes; school class rooms) following a non-ventilation period of min. 8 hours duration.
TYPE OF EXPOSURE MEASUREMENT: Area air sampling
EXPOSURE LEVELS: see table below
DESCRIPTION OF EXPOSURE GROUPS: general population
Results and discussion
- Results:
- In approx. 3000 indoor air measurements conducted in Germany during 2002-2006, the concentration of n-undecanal was found to be in the range of 3 µg/m³. The exposure of the general population is therefore low.
Any other information on results incl. tables
Indoor air measurement results (only undecanal shown)
Weekly mean concentrations in the air of children’s bedrooms (n=586); Germany 2003-2006 |
|||
N |
Median (mg/m³) |
95th percentile (µg/m³) |
Maximal (µg/m³) |
N <LoD: 327 |
|
|
|
N >LoD: 44 |
<1 |
3 |
13 |
|
|||
Indoor air monitoring following min. 8 hours of no ventilation; Germany 2002-2006 Offices (n=984); residential homes (n=738); class rooms (n=295) |
|||
Total: 329 |
|
||
N >LoD: 138 (42%) |
<1 |
2 |
4 |
LoD= level of detection
Applicant's summary and conclusion
- Conclusions:
- In approx. 3000 indoor air measurements conducted in Germany during 2002-2006, the concentration of n-undecanal was found to be in the range of 3 µg/m³. The exposure of the general population is therefore low, and inhalation is not a relevant route of exposure.
- Executive summary:
In approx. 3000 indoor air measurements conducted in Germany during 2002-2006, the concentration of n-undecanal was found to be in the range of 3 µg/m³. The exposure of the general population is therefore low. This is in line with the low vapour pressure and suggests that n-undecanal is not frequently present in indoor settings, and that quantities are minor. In summary, the exposure of the general population against n-undecanal is very low.
Consequently, the air quality recommendation derived from these data did not aim at preventing toxicity, but focused on pleasant odour. It was assumed that all aldehydes detected would behave like the short chain butanal, which resulted in a recommendation of 0.2 mg (sum of all aldehydes)/m³. A further factor of 2 was used to prevent from unpleasant odour, which resulted in a “health precaution value” of 0.2 mg/m³ (as the sum of all aldehydes) (UBA, 2009).
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