Registration Dossier
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EC number: 219-470-5 | CAS number: 2440-22-4
- 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
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Occurrence and profiles of organic sun-blocking agents in surface water and sediments in Japanese rivers and lakes
- Author:
- Yutaka Kameda, Kumiko Kimura, Motonobu Miyazaki
- Year:
- 2 011
- Bibliographic source:
- Environmental Pollution 159, 1570-1576
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- GLP compliance:
- no
- Type of measurement:
- other:
- Remarks:
- occurrence and profiles
- Media:
- other: surface water and sediments
Test material
- Specific details on test material used for the study:
- following UV light stabilizer (UVLS) were investigated:
- 2-(2-Hydroxy-5-methylphenyl)-benzotriazole (UV-P)
- 2-(5-Chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol (UV-326)
- 2,4-Di-t-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol (UV-327)
- 2-(20-Hydroxy-30,50-di-tert-amylphenyl) benzotriazole (UV-328)
- 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (UV-329)
- 2,4-Di-t-butylphenyl-3,5-Di-t-butyl-4-hydroxybenzoate (UV-120)
- 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) phenol (UV-234)
- 2-(4,6-Diphenyl-1,3,5-triazine-2-yl)-5-[(hexyl)oxy]-phenol (UV-1577)
Study design
- Details on sampling:
- Surface water and sediment samples were taken from rivers (22 sites), lakes (3 sites) and sewage treatment plat effluents (STPE) (4 sites) in Saitama Prefecture, Japan, in August and September 2008. Samples were collected from 29 sampling sites: 2 streams with direct inputs of domestic wastewater, 4 STPE, 6 rivers that have been heavily polluted by industrial and domestic wastewaters, 12 moderately contaminated rivers, 2 little contaminated rivers and 3 lakes as background sites. All samples were grab samples.
Results and discussion
Concentrationopen allclose all
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 10 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 7 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 2 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 16 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 13 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 9 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 2 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 5 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 2 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 1 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 1 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- other:
- Remarks:
- UV-327
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 70 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 62 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 701 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 152 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 1 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 1 other: ng/L
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in surface water (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in surface water (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 15 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 3.4 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 1.3 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-P
- Conc.:
- 1.3 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 7.8 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 0.8 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 4.7 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 1.8 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-326
- Conc.:
- 1.2 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 4.7 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 0.5 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 2.4 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 0.9 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-327
- Conc.:
- 0.7 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Conc.:
- 16 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Conc.:
- 26 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Conc.:
- 0.6 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-329
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-1577
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 102 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 13 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 117 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 59 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-328
- Conc.:
- 58 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV234
- Conc.:
- 1 266 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Remarks on result:
- not determinable
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Conc.:
- 99 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Conc.:
- 47 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-234
- Conc.:
- 39 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 18 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (streams)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Conc.:
- 1.1 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (STPE)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 1.3 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (heavily polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 0.8 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (moderately polluted rivers)
- Key result
- Country:
- Japan
- Location:
- Saitama Prefecture
- Substance or metabolite:
- substance
- Remarks:
- UV-120
- Conc.:
- 0.2 other: µg/kg
- Remarks on result:
- other:
- Remarks:
- Mean detected concentration in sediment (background sites)
Any other information on results incl. tables
Surface water:
The recovery ratios of all eighteen analyte samples ranged from 80 to 113%, except for UV-1577, which had a slightly higher recovery ratio. The limits of detection (LODs) ranged from 0.1 to 3.0 ng/L.
Sediment:
The recovery ratios of all compounds ranged from 70 to 125%. The LODs in the sediment samples were relatively low, ranging from 0.05 to 1.0 ng/g dry weight, except for UV-328. Procedural blanks showed UV-328 in each analysis. Therefore, the LOD of UV-328 was determined to be 10 ng/g dry weight.
Applicant's summary and conclusion
- Conclusions:
- The study showed the occurrence and concentrations of UV light stabilizers (UVLS) in surface water and sediment from rivers, lakes, STPE and industrial wastewaters. UV-328 was the most dominant UVLS found in river and lake water and STPE. To a much lower extent UV-326 was also found. The compositions of UVLS in sediment were similar for the tested sampling sites. UV-328 and UV-234 accounted for 70 to 80% of the total contaminants identified in all sediment. UV-326 had a strong linear correlation between UV-327 as well as UV-328 in all sediment.
- Executive summary:
The occurrence of UV light stabilizers (UVLS) were measured in water and sediment collected from 22 rivers, four sewage treatment plant effluents (STPE) and three lakes in Japan. Total UVLS levels ranged from N.D. to 4180 ng/L and to 1735 µg/kg dry wt in surface water and in sediment, respectively. UVLS were observed in all sediment and their compositions showed similar patterns, with UV-328 and UV-234 as the most prevalent compounds. Concentrations of UV-327 and UV-328 had strong correlation between those of UV-326 in sediment.
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