Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 215-481-4 | CAS number: 1327-53-3
- 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

Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Remarks:
- adsorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Specific details on test material used for the study:
- Na2HAsO4.7H2O
- Radiolabelling:
- no
- Test temperature:
- not reported
- Analytical monitoring:
- yes
- Details on sampling:
- Medium: AP hprizon
Background conc. of As: not reported
Location: USA
air-dried and sieved (2 mm)
sampling solution phase: shaking for 18h followed by filtration through quantitative filter paper - Matrix no.:
- #1
- Matrix type:
- other: very fine, montmorillonitic acid, thermic vertic haplaquept
- % Clay:
- 54.7
- % Org. carbon:
- 1.54
- pH:
- 4.8
- CEC:
- 32.2 meq/100 g soil d.w.
- Matrix no.:
- #2
- Matrix type:
- other: Calciorthid
- % Clay:
- 10.7
- % Org. carbon:
- 0.44
- pH:
- 8.5
- CEC:
- 14.7 meq/100 g soil d.w.
- Matrix no.:
- #3
- Matrix type:
- other: clayey, kaolinitic, thermic typic hapludult
- % Clay:
- 8.3
- % Org. carbon:
- 0.61
- pH:
- 5.7
- CEC:
- 2 meq/100 g soil d.w.
- Matrix no.:
- #4
- Matrix type:
- other: medial, isothermic typic eithandept
- % Clay:
- 0.9
- % Org. carbon:
- 6.62
- pH:
- 5.9
- CEC:
- 22.5 meq/100 g soil d.w.
- Matrix no.:
- #5
- Matrix type:
- other: euic, thermic typic medisaprist
- % Clay:
- 17.6
- % Org. carbon:
- 11.6
- pH:
- 3.9
- CEC:
- 26.9 meq/100 g soil d.w.
- Matrix no.:
- #6
- Matrix type:
- other: clayey, kaolinitic, isohyperthermic typic torrox
- % Clay:
- 28.2
- % Org. carbon:
- 1.67
- pH:
- 6
- CEC:
- 11 meq/100 g soil d.w.
- Matrix no.:
- #7
- Matrix type:
- other: fine-silty mixed (calc.) thermic typic udifluvent
- % Clay:
- 2.8
- % Org. carbon:
- 0.21
- pH:
- 6.9
- CEC:
- 4.1 meq/100 g soil d.w.
- Matrix no.:
- #8
- Matrix type:
- other: fine-silty, mixed thermic awuic fragiudalf
- % Clay:
- 6.2
- % Org. carbon:
- 0.83
- pH:
- 6.6
- CEC:
- 8.6 meq/100 g soil d.w.
- Matrix no.:
- #9
- Matrix type:
- Spodsol
- % Clay:
- 3.8
- % Org. carbon:
- 1.98
- pH:
- 4.3
- CEC:
- 2.7 meq/100 g soil d.w.
- Matrix no.:
- #10
- Matrix type:
- other: Fine-loamy, mixed, mesic Typic Haplaquoll
- % Clay:
- 23.9
- % Org. carbon:
- 4.39
- pH:
- 7.6
- CEC:
- 48.1 meq/100 g soil d.w.
- Matrix no.:
- #11
- Matrix type:
- other: mised, mesic typic udipsament
- % Clay:
- 2.8
- % Org. carbon:
- 2.03
- pH:
- 5.3
- CEC:
- 2 meq/100 g soil d.w.
- Details on matrix:
- pH
Alligator 4.8
Calciorthid 8.5
Cecil 5.7
Kula 5.9
Lafitte 3.9
Molokai 6
Norwood 6.9
Olivier 6.6
Spodosol 4.3
Webster 7.6
Windsor 5.3
Sample name soil classification
Alligator very fine, montmorillonitic acid, thermic vertic haplaquept
Calciorthid Calciorthid
Cecil clayey, kaolinitic, thermic typic hapludult
Kula medial, isothermic typic eithandept
Lafitte euic, thermic typic medisaprist
Molokai clayey, kaolinitic, isohyperthermic typic torrox
Norwood fine-silty mixed (calc.) thermic typic udifluvent
Olivier fine-silty, mixed thermic awuic fragiudalf
Spodosol Spodosol
Webster Fine-loamy, mixed, mesic Typic Haplaquoll
Windsor mised, mesic typic udipsament
Sample name Organic carbon content (%)
Alligator 1.54
Calciorthid 0.44
Cecil 0.61
Kula 6.62
Lafitte 11.6
Molokai 1.67
Norwood 0.21
Olivier 0.83
Spodosol 1.98
Webster 4.39
Windsor 2.03
clay content (%)
Alligator 54.7
Calciorthid 10.7
Cecil 8.3
Kula 0.9
Lafitte 17.6
Molokai 28.2
Norwood 2.8
Olivier 6.2
Spodosol 3.8
Webster 23.9
Windsor 2.8
CEC ( cmolc/kg (=meq/100g) )
Alligator 30.2
Calciorthid 14.7
Cecil 2
Kula 22.5
Lafitte 26.9
Molokai 11
Norwood 4.1
Olivier 8.6
Spodosol 2.7
Webster 48.1
Windsor 2 - Details on test conditions:
- Addition test substance:
Samples (1 g) of the soil was mized with 10 ml aliquots of the solutions. The samples were shaken for 18h at 100 osc/min, filtered through quantitative gilfer paper
Added test concentrations (mg/L): 0.01, 0.05, 0.1, 0.2, 0.5, 1, 5, 10, 50, 100
equilibration period: 18h
solid:liquid ratio: 1:10
solution: 0.005M Ca(NO3)2 - Duration:
- 18 h
- Remarks:
- all samples
- Computational methods:
- batch equilibrium method; S=Kd*C^n met C= mg/L
Kd calculated for C = 10 µg/L - Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.407 L/kg
- pH:
- 4.8
- Remarks on result:
- other: Alligator
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.84 L/kg
- pH:
- 8.5
- Remarks on result:
- other: Calciorthid
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.061 L/kg
- pH:
- 5.7
- Remarks on result:
- other: Cecil
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.252 L/kg
- pH:
- 5.9
- Remarks on result:
- other: Kula
- Sample No.:
- #5
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.357 L/kg
- pH:
- 3.9
- Remarks on result:
- other: Lafitte
- Sample No.:
- #6
- Phase system:
- solids-water in sediment
- Type:
- log Kp
- Value:
- 3.072 L/kg
- pH:
- 6
- Remarks on result:
- other: Molokai
- Sample No.:
- #7
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.911 L/kg
- pH:
- 6.9
- Remarks on result:
- other: Norwood
- Sample No.:
- #8
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.567 L/kg
- pH:
- 6.6
- Remarks on result:
- other: Olivier
- Sample No.:
- #9
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.679 L/kg
- pH:
- 4.3
- Remarks on result:
- other: Spodosol
- Sample No.:
- #10
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.077 L/kg
- pH:
- 7.6
- Remarks on result:
- other: Webster
- Sample No.:
- #11
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.819 L/kg
- pH:
- 5.3
- Remarks on result:
- other: Windsor
- Validity criteria fulfilled:
- not specified
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 11 log Kp (solids-water in soil) values between 1.70 and 3.07 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Radiolabelling:
- no
- Test temperature:
- room temperature
- Analytical monitoring:
- yes
- Details on sampling:
- solid phase: air-dried and sieved (2 mm),
medium: 0-15 cm
solution phase: centrifugation at 4000 rpm, filter through a Whatman grade 42 filter paper
sampling location: USA - Matrix no.:
- #1
- % Clay:
- 5
- pH:
- 7.7
- Matrix no.:
- #2
- % Clay:
- 10
- pH:
- 8
- Matrix no.:
- #3
- % Clay:
- 10
- pH:
- 8.1
- Matrix no.:
- #4
- % Clay:
- 28
- pH:
- 7.2
- Details on matrix:
- pH
amarillo: 7.7
arvana: 8
patricia: 8.1
pullmann: 7.2
clay content
amarillo: 5 %
arvana: 10 %
patricia: 10 %
pullmann: 28 % - Details on test conditions:
- Added test concentrations: 0, 1, 5, 10, 20, 50, 100, 500 mg/kg
Background conc.: < 1 (negligible)
solid:liquid ratio: 01:10
Addition test substance: 24h equilibratation with potassium arsenate - Computational methods:
- adsorption curves were fitted with Freundlich equation. Kp was calculated based on Freundlich parameters for an equilibrium As concentration of 0.01 mg As/L.
- Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 0.1 L/kg
- Temp.:
- 20 °C
- pH:
- 7.7
- Remarks on result:
- other: amarillo
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1 L/kg
- Temp.:
- 20 °C
- pH:
- 8
- Remarks on result:
- other: arvana
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.1 L/kg
- Temp.:
- 20 °C
- pH:
- 8.1
- Remarks on result:
- other: patricia
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2 L/kg
- Temp.:
- 20 °C
- pH:
- 7.2
- Remarks on result:
- other: pullmann
- Validity criteria fulfilled:
- yes
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 4 log Kp (solids-water in soil) values between 0.1 and 2.0 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Remarks:
- adsorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Specific details on test material used for the study:
- Na2HAsO4.7H2O
- Radiolabelling:
- no
- Test temperature:
- 25 °C
- Analytical monitoring:
- yes
- Details on sampling:
- depth of 30 cm, air-dried and sieved (2 mm)
solution phase: centrifuged and filtered - Matrix no.:
- #1
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 28
- pH:
- 6.5
- Matrix no.:
- #2
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 38
- pH:
- 6.7
- Matrix no.:
- #3
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 38
- pH:
- 6.5
- Matrix no.:
- #4
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 41
- pH:
- 6.8
- Matrix no.:
- #5
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 44
- pH:
- 6.1
- Matrix no.:
- #6
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 31
- pH:
- 6.4
- Matrix no.:
- #7
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 36
- pH:
- 5.9
- Matrix no.:
- #8
- Matrix type:
- other: down gradient agricultural soil
- % Clay:
- 41
- pH:
- 6.3
- Details on matrix:
- location: Korea
all samples are down gradient agricultural soil
Background conc. of As: n/a, As free soil
Clay content
DY2: 28%
DY3: 38 %
DY4: 38 %
DY5: 41 %
DY6: 44 %
BS2: 31 %
BS3: 36 %
BS4: 41 %
pH:
DY2: 6.5
DY3: 6.7
DY4: 6.5
DY5: 6.8
DY6: 6.1
BS2: 6.4
BS3: 5.9
BS4: 6.3 - Details on test conditions:
- Addition test substance:
As solutions were added to the polypropylene centrifuge tubes at a soil mass to solution vol- ume ratio of 1:20, with each sample prepared in triplicate. After attaining equilibrium in a rotary shaker at 25 °C for 36 h, the tubes were centrifuged and the pH of the aqueous phase measured.
Added test concentrations: 5 different concentrations up to 10 mg/L
solution: Na2HAs O47H2O diluted with appropriate volumes of CaCl2
solid:liquid ratio: 01:20 - Duration:
- 1.5 d
- Remarks:
- all samples
- Computational methods:
- For the adsorption isotherms, the concentration of As adsorbed (Cs, mg/kg) was calculated by subtracting the mass of As in the equilibrated solution from that initially spiked. The adsorption iso- therm data were fitted to the Freundlich isotherm model: Cs = Kf CNw, where, Cw = As concentration in the aqueous phase (mg/L); Kf = the Freundlich coefficient); and N = a measure of the isotherm nonlinearity (unitless).
The Kp values were calculated for Cw = 10 µg As/L. - Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.2 L/kg
- Temp.:
- 25 °C
- pH:
- 6.5
- Remarks on result:
- other: DY2
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.14 L/kg
- Temp.:
- 25 °C
- pH:
- 6.7
- Remarks on result:
- other: DY3
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.19 L/kg
- Temp.:
- 25 °C
- pH:
- 6.5
- Remarks on result:
- other: DY4
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.38 L/kg
- Temp.:
- 25 °C
- pH:
- 6.8
- Remarks on result:
- other: DY5
- Sample No.:
- #5
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.43 L/kg
- Temp.:
- 25 °C
- pH:
- 6.1
- Remarks on result:
- other: DY6
- Sample No.:
- #6
- Phase system:
- solids-water in sediment
- Type:
- log Kp
- Value:
- 3.36 L/kg
- Temp.:
- 25 °C
- pH:
- 6.4
- Remarks on result:
- other: BS2
- Sample No.:
- #7
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.36 L/kg
- Temp.:
- 25 °C
- pH:
- 5.9
- Remarks on result:
- other: BS3
- Sample No.:
- #8
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.48 L/kg
- Temp.:
- 25 °C
- pH:
- 6.3
- Remarks on result:
- other: BS4
- Validity criteria fulfilled:
- yes
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 8 log Kp (solids-water in soil) values between 3.14 and 3.60 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Test temperature:
- not reported
- Analytical monitoring:
- yes
- Details on sampling:
- location: Spain
medium: surfacte soil - Matrix no.:
- #1
- % Clay:
- 23.6
- % Org. carbon:
- 5.43
- pH:
- 7.96
- CEC:
- 21.4 meq/100 g soil d.w.
- Matrix no.:
- #2
- % Clay:
- 11.8
- % Org. carbon:
- 0.42
- pH:
- 8.67
- CEC:
- 9.83 meq/100 g soil d.w.
- Matrix no.:
- #3
- % Clay:
- 7.7
- % Org. carbon:
- 0.38
- pH:
- 8.79
- CEC:
- 2.94 meq/100 g soil d.w.
- Matrix no.:
- #4
- % Clay:
- 19
- % Org. carbon:
- 0.61
- pH:
- 6.74
- CEC:
- 9.91 meq/100 g soil d.w.
- Matrix no.:
- #5
- % Clay:
- 23.8
- % Org. carbon:
- 8.22
- pH:
- 7.2
- CEC:
- 25.9 meq/100 g soil d.w.
- Matrix no.:
- #6
- % Clay:
- 8.31
- % Org. carbon:
- 0.49
- pH:
- 5.87
- CEC:
- 3.83 meq/100 g soil d.w.
- Matrix no.:
- #7
- % Clay:
- 54.7
- % Org. carbon:
- 0.66
- pH:
- 7.03
- CEC:
- 15.5 meq/100 g soil d.w.
- Details on matrix:
- pH
H1 7.96
H2 8.67
H3 8.79
H4 6.74
H5 7.2
H6 5.87
H7 7.03
Organic carbon (%)
H1 5.43
H2 0.42
H3 0.38
H4 0.61
H5 8.22
H6 0.49
H7 0.66
clay content (%)
H1 23.6
H2 11.8
H3 7.7
H4 19
H5 23.8
H6 8.31
H7 54.7
CEC cmolc/kg (=meq/100g)
H1 21.4
H2 9.83
H3 2.94
H4 9.91
H5 25.9
H6 3.83
H7 15.5
Background conc. mg As/kg
H1 15.5
H2 9.07
H3 3.39
H4 16.2
H5 12.3
H6 4.39
H7 25.7 - Details on test conditions:
- Water soluble As concentration in soil was determined from soil:water extracts (1:1 ratio) after 24 h equilibrium with shaking
- Duration:
- 1 d
- Remarks:
- all samples
- Computational methods:
- ratio of total As over dissolved As, results for unamended soil only
- Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.84 L/kg
- pH:
- 7.96
- Remarks on result:
- other: H1
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.11 L/kg
- pH:
- 8.67
- Remarks on result:
- other: H2
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.53 L/kg
- pH:
- 8.79
- Remarks on result:
- other: H3
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.34 L/kg
- pH:
- 6.74
- Remarks on result:
- other: H4
- Sample No.:
- #5
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.01 L/kg
- pH:
- 7.2
- Remarks on result:
- other: H5
- Sample No.:
- #6
- Phase system:
- solids-water in sediment
- Type:
- log Kp
- Value:
- 2.64 L/kg
- pH:
- 5.87
- Remarks on result:
- other: H6
- Sample No.:
- #7
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.41 L/kg
- pH:
- 7.03
- Remarks on result:
- other: H7
- Validity criteria fulfilled:
- not specified
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 7 log Kp (solids-water in soil) values between 2.34 and 3.41 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Specific details on test material used for the study:
- Na2HAsO4.7H2O
- Radiolabelling:
- no
- Test temperature:
- not reported
- Analytical monitoring:
- yes
- Details on sampling:
- location: Germany
Medium: surface soil
solid phase: air-dried and sieved (2 mm) - Matrix no.:
- #1
- % Clay:
- 6.9
- % Org. carbon:
- 1.78
- pH:
- 5.6
- CEC:
- 6.61 meq/100 g soil d.w.
- Matrix no.:
- #2
- % Clay:
- 18.7
- % Org. carbon:
- 2.51
- pH:
- 5.2
- CEC:
- 10.46 meq/100 g soil d.w.
- Matrix no.:
- #3
- % Clay:
- 43.5
- % Org. carbon:
- 2.75
- pH:
- 7.3
- CEC:
- 24.68 meq/100 g soil d.w.
- Matrix no.:
- #4
- % Clay:
- 11.3
- % Org. carbon:
- 1
- pH:
- 5.7
- CEC:
- 7.78 meq/100 g soil d.w.
- Matrix no.:
- #5
- % Clay:
- 30.8
- % Org. carbon:
- 5.1
- pH:
- 6
- CEC:
- 27.98 meq/100 g soil d.w.
- Matrix no.:
- #6
- % Clay:
- 67.5
- % Org. carbon:
- 21.68
- pH:
- 4.8
- CEC:
- 49.39 meq/100 g soil d.w.
- Details on matrix:
- pH
LUFA 2.2 soil 5.6
Refesol 05-G 5.2
Refesol 06-A 7.3
Ter Munck 5.7
Woburn 6
Zegveld 4.8
Organic carbon content (%)
LUFA 2.2 soil 1.78
Refesol 05-G 2.51
Refesol 06-A 2.75
Ter Munck 1
Woburn 5.1
Zegveld 21.68
Clay content (5)
LUFA 2.2 soil 6.9
Refesol 05-G 18.7
Refesol 06-A 43.5
Ter Munck 11.3
Woburn 30.8
Zegveld 67.5
CEC (cmolc/kg (=meq/100g))
LUFA 2.2 soil 6.61
Refesol 05-G 10.46
Refesol 06-A 24.68
Ter Munck 7.78
Woburn 27.98
Zegveld 49.39
Background conc. (mg/kg)
LUFA 2.2 soil 2.99
Refesol 05-G 4.36
Refesol 06-A 4.81
Ter Munck 2.95
Woburn 46.2
Zegveld 12.2 - Details on test conditions:
- Addition test substance: batch equilibrium method; 8 to 15 initial concentrations; ionic strength adjusted to each single soil sample, suspensions centrifugated and filtered through 0.45 µm
equilibration period: 1 day
solution:
LUFA 2.2 soil 5.25 mM Ca(NO3)2 solution
Refesol 05-G 1 mM Ca(NO3)2 solution
Refesol 06-A 2.75 mM Ca(NO3)2 solution
Ter Munck 6.5 mM Ca(NO3)2 solution
Woburn 1.75 mM Ca(NO3)2 solution
Zegveld 6.5 mM Ca(NO3)2 solution
solid:liquid ratio: 1:5 - Computational methods:
- batch equilibrium method; S=Kd*C^n met C= mg/L
- Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.67 L/kg
- pH:
- 5.6
- Remarks on result:
- other: LUFA 2.2 soil
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.76 L/kg
- pH:
- 5.2
- Remarks on result:
- other: Refesol 05-G
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 4.06 L/kg
- pH:
- 7.3
- Remarks on result:
- other: Refesol 06-A
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.38 L/kg
- pH:
- 5.7
- Remarks on result:
- other: Ter Munck
- Sample No.:
- #5
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.11 L/kg
- pH:
- 6
- Remarks on result:
- other: Woburn
- Sample No.:
- #6
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.28 L/kg
- pH:
- 4.8
- Remarks on result:
- other: Zegveld
- Validity criteria fulfilled:
- yes
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 6 log Kp (solids-water in soil) values between 3.11 and 4.06 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Remarks:
- adsorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Specific details on test material used for the study:
- As(III)
- Radiolabelling:
- no
- Test temperature:
- room temperature
- Analytical monitoring:
- yes
- Details on sampling:
- Medium: subsurface
location: Japan
air-dried and sieved (0.4 mm)
solution phase: centrifugatiion and filtered through a 0.45µm filter - Matrix no.:
- #1
- % Clay:
- 48
- % Org. carbon:
- 3.2
- pH:
- 5.8
- CEC:
- 16.3 meq/100 g soil d.w.
- Matrix no.:
- #2
- % Clay:
- 30
- % Org. carbon:
- 2.1
- pH:
- 5.3
- CEC:
- 16.2 meq/100 g soil d.w.
- Matrix no.:
- #3
- % Clay:
- 36
- % Org. carbon:
- 18.7
- pH:
- 5.2
- CEC:
- 20.7 meq/100 g soil d.w.
- Matrix no.:
- #4
- % Clay:
- 20
- % Org. carbon:
- 6.3
- pH:
- 4.9
- CEC:
- 18.5 meq/100 g soil d.w.
- Matrix no.:
- #5
- % Clay:
- 11
- % Org. carbon:
- 6.1
- pH:
- 5.8
- CEC:
- 23 meq/100 g soil d.w.
- Matrix no.:
- #6
- % Clay:
- 23
- % Org. carbon:
- 91.7
- pH:
- 5
- CEC:
- 20.2 meq/100 g soil d.w.
- Matrix no.:
- #7
- % Clay:
- 13
- % Org. carbon:
- 21.4
- pH:
- 5.9
- CEC:
- 6.9 meq/100 g soil d.w.
- Matrix no.:
- #8
- % Clay:
- 59
- % Org. carbon:
- 1.7
- pH:
- 5.3
- CEC:
- 24.9 meq/100 g soil d.w.
- Matrix no.:
- #9
- % Clay:
- 36
- % Org. carbon:
- 2.1
- pH:
- 4.6
- CEC:
- 14.4 meq/100 g soil d.w.
- Matrix no.:
- #10
- % Clay:
- 29
- % Org. carbon:
- 9.7
- pH:
- 5.6
- CEC:
- 16.1 meq/100 g soil d.w.
- Matrix no.:
- #11
- % Clay:
- 6
- % Org. carbon:
- 4.7
- pH:
- 4.7
- CEC:
- 2.6 meq/100 g soil d.w.
- Matrix no.:
- #12
- % Clay:
- 22
- % Org. carbon:
- 9.6
- pH:
- 5.5
- CEC:
- 14.1 meq/100 g soil d.w.
- Matrix no.:
- #13
- % Clay:
- 34
- % Org. carbon:
- 14.1
- pH:
- 5.4
- CEC:
- 5.9 meq/100 g soil d.w.
- Matrix no.:
- #14
- % Clay:
- 18
- % Org. carbon:
- 8.7
- pH:
- 5.8
- CEC:
- 16.1 meq/100 g soil d.w.
- Matrix no.:
- #15
- % Clay:
- 60
- % Org. carbon:
- 23.3
- pH:
- 5.3
- CEC:
- 6.6 meq/100 g soil d.w.
- Details on matrix:
- pH
1 5.8
2 5.3
3 5.2
4 4.9
5 5.8
6 5
7 5.9
8 5.3
9 4.6
10 5.6
11 4.7
12 5.5
13 5.4
14 5.8
15 5.3
Organic carbon content (%)
1 3.2
2 2.1
3 18.7
4 6.3
5 6.1
6 91.7
7 21.4
8 1.7
9 2.1
10 9.7
11 4.7
12 9.6
13 14.1
14 8.7
15 23.3
Clay content (%)
1 48
2 30
3 36
4 20
5 11
6 23
7 13
8 59
9 36
10 29
11 6
12 22
13 34
14 18
15 60
CEC cmolc/kg (=meq/100g)
1 16.3
2 16.2
3 20.7
4 18.5
5 23
6 20.2
7 6.9
8 24.9
9 14.4
10 16.1
11 2.6
12 14.1
13 5.9
14 16.1
15 6.6 - Details on test conditions:
- Addition test substance: 0.2g soil + 40mL of 10mM CaSO4 mixed in a polypropylene centrifuge tube
Added test concentrations: varying, 4-80 µg As per 0.2 g soil
equilibration period: 1 day
solution: 10 mM CaSO4
solid:liquid ratio: 1:200 - Computational methods:
- Q=KdC where Q is the quantity (µg/g) of As(III) adsorbed per gram of soil and C is the equilibrium concentration (µg/mL) of As(III) in solution.
- Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 3.08 L/kg
- Temp.:
- 20 °C
- pH:
- 5.8
- Sample No.:
- #2
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.28 L/kg
- Temp.:
- 20 °C
- pH:
- 5.3
- Sample No.:
- #3
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.3 L/kg
- Temp.:
- 20 °C
- pH:
- 5.2
- Sample No.:
- #4
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.89 L/kg
- Temp.:
- 20 °C
- pH:
- 4.9
- Sample No.:
- #5
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.88 L/kg
- Temp.:
- 20 °C
- pH:
- 5.8
- Sample No.:
- #6
- Phase system:
- solids-water in sediment
- Type:
- log Kp
- Value:
- 2.08 L/kg
- Temp.:
- 20 °C
- pH:
- 5
- Sample No.:
- #7
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.38 L/kg
- Temp.:
- 20 °C
- pH:
- 5.9
- Sample No.:
- #8
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.88 L/kg
- Temp.:
- 20 °C
- pH:
- 5.3
- Sample No.:
- #9
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.43 L/kg
- Temp.:
- 20 °C
- pH:
- 4.6
- Sample No.:
- #10
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.38 L/kg
- Temp.:
- 20 °C
- pH:
- 5.6
- Sample No.:
- #11
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.99 L/kg
- Temp.:
- 20 °C
- pH:
- 4.7
- Sample No.:
- #12
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.38 L/kg
- Temp.:
- 20 °C
- pH:
- 5.5
- Sample No.:
- #13
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.18 L/kg
- Temp.:
- 20 °C
- pH:
- 5.4
- Sample No.:
- #14
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.18 L/kg
- Temp.:
- 20 °C
- pH:
- 5.8
- Sample No.:
- #15
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 2.48 L/kg
- Temp.:
- 20 °C
- pH:
- 5.3
- Validity criteria fulfilled:
- not specified
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 15 log Kp (solids-water in soil) values between 1.88 and 3.08 L/kg dw. All values were used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
- Endpoint:
- adsorption / desorption: screening
- Remarks:
- adsorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- batch equilibration method.
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- soil
- Radiolabelling:
- no
- Test temperature:
- not reported
- Analytical monitoring:
- yes
- Details on sampling:
- location: Berlin
Medium: 0-25 cm
soil classification: sandy combisol
solid phase: aqua regia extraction
solution phase: via a perfusion apparatus - Matrix no.:
- #1
- Matrix type:
- other: sandy combisol
- % Clay:
- 9
- % Silt:
- 12
- % Sand:
- 79
- % Org. carbon:
- 1.2
- pH:
- 6
- CEC:
- 10.3 meq/100 g soil d.w.
- Details on matrix:
- pH: 6,
Organic carbon content: 1.2%
Clay content: 9%
CEC: 10.3 cmolc/kg (=meq/100g)
other properties: 12% silt, 79% sand - Details on test conditions:
- Addition test substance: percolation of 50 g soil with 100 ml distilled water at 26°C for 4 days
Added test concentrations: 50 mg/kg
equilibration period: 4days
solution: distilled water
solid:liquid ratio: 1:2 - Duration:
- 4 d
- pH:
- 6
- Computational methods:
- ratio of sorbed concentration in soil over not sorbed concentration
- Sample No.:
- #1
- Phase system:
- solids-water in soil
- Type:
- log Kp
- Value:
- 1.52 L/kg
- pH:
- 6
- Validity criteria fulfilled:
- not specified
- Conclusions:
- No guideline followed, but study well performed and well documented. Adsorption experiment resulted in 1 log Kp (solids-water in soil) value, 1.52 L/kg dw. This value was used for derivation of the Kp (solids-water in soil) for the chemical safety assessment.
Referenceopen allclose all
Freundlich adsorption coefficient | Slope Freundlich adsorption isotherm (n) | |
Alligator | 47.75 | 0.64 |
Calciorthid | 8.87 | 0.55 |
Cecil | 19.82 | 0.62 |
Kula | 1499.68 | 1.46 |
Lafitte | 70.96 | 0.75 |
Molokai | 156.31 | 0.56 |
Norwood | 8.53 | 0.51 |
Olivier | 46.03 | 0.55 |
Spodosol | 18.75 | 0.80 |
Webster | 23.60 | 0.65 |
Windsor | 104.95 | 0.60 |
Freundlich adsorption coefficient | Slope Freundlich adsorption isotherm (n) | |
amarillo | 1.38 | 1.014 |
arvana | 5.23 | 0.868 |
patricia | 5.5 | 0.842 |
pullmann | 21.6 | 0.65 |
concentration solid phase | concentration solution phase (drinking water WHO limit) | |
mg As/kg | mg As/L | |
DY2 | 16.01 | 0.01 |
DY3 | 13.73 | 0.01 |
DY4 | 15.67 | 0.01 |
DY5 | 23.76 | 0.01 |
DY6 | 27.11 | 0.01 |
BS2 | 23.00 | 0.01 |
BS3 | 39.87 | 0.01 |
BS4 | 29.97 | 0.01 |
Concentration solution phase (mg As/L) | concentration solid phase (mg As/kg) | |
H1 | 0.023 | 15.5 |
H2 | 0.007 | 9.07 |
H3 | 0.01 | 3.39 |
H4 | 0.077 | 16.2 |
H5 | 0.014 | 12.3 |
H6 | 0.01 | 4.39 |
H7 | 0.01 | 25.7 |
Freundlich adsorption coefficient | Slope Freundlich adsorption isotherm (n) | |
LUFA 2.2 soil | 510 | 0.52 |
Refesol 05-G | 1216 | 0.66 |
Refesol 06-A | 1739 | 0.59 |
Ter Munck | 366 | 0.59 |
Woburn | 467 | 0.78 |
Zegveld | 835 | 0.82 |
concentration solid phase (mg/kg) | |
LUFA 2.2 soil | 46.51 |
Refesol 05-G | 58.20 |
Refesol 06-A | 114.89 |
Ter Munck | 24.18 |
Woburn | 12.86 |
Zegveld | 19.13 |
concentration solution phase: 0.01 mg As/L - WHO drinking water limit
Concentration solution phase |
0.68 mg As/L |
concentration solid phase |
22.7 mg As/kg |
Description of key information
Soil: The median log Kp of 2.50 L/kg dry weight from experimental results for 52 soils from 7 studies was selected for the partitioning of As between solids and water in soil.
Freshwater sediment: The median log Kp value of 3.68 L/kg dry weight from experimental data for 7 rivers derived from 7 studies was selected for the partitioning of As between solids and water in freshwater sediment.
Marine sediment: The median log Kp value of 3.13 L/kg dry weight from experimental data for 2 marine systems derived from 2 studies was selected for the partitioning of As between solids and water in marine sediment.
Freshwater suspended mater: The median log Kp value of 4.10 L/kg dry weight from experimental data for 13 freshwater systems derived from 13 studies was selected for the partitioning of As between solids and water in freshwater suspended matter.
Marine suspended mater: The median log Kp value of 3.88 L/kg dry weight from experimental data for 6 marine systems derived from 5 studies was selected for the partitioning of As between solids and water in marine suspended matter.
Key value for chemical safety assessment
Other adsorption coefficients
- Type:
- log Kp (solids-water in soil)
- Value in L/kg:
- 2.5
Other adsorption coefficients
- Type:
- log Kp (solids-water in suspended matter)
- Value in L/kg:
- 4.1
Other adsorption coefficients
- Type:
- other: log Kp (solids-water in marine suspended matter)
- Value in L/kg:
- 3.88
Other adsorption coefficients
- Type:
- log Kp (solids-water in sediment)
- Value in L/kg:
- 3.68
Other adsorption coefficients
- Type:
- other: log Kp (solids-water in marine sediment)
- Value in L/kg:
- 3.13
Additional information
There is substantial reliable (all Klimisch 2) information available for adsorption/desorption of arsenic, reporting partitioning coefficients (Kp values, i.e. ratio of As concentration in solid phase over dissolved As concentration in solution phase) for soil, sediments and suspended matter. All the information available for sediment and suspended matter is based on paired monitoring data of elemental As concentrations in sediment or suspended matter and water. The reliable information for Kp values in soil is based on batch adsorption or desorption experiments with added As(III) and As(V) salts.
Soil
For soil, seven studies were identified, which report reliable Kp values for As(III) and As(V) salts in 52 soils with varying properties (pH: 3.9-8.8; organic carbon: 0.2-21.7%; clay: 1-68%). Log Kp values range between 0.11 and 4.06 L/kg dry weight, with a median of 2.50 L/kg dry weight. No significant differences were observed in Kp values between As salts added to the soils and Kp values were not strongly correlated with soil properties. Results summarized in several review documents are largely in the range of the 52 Kp values selected from the 7 experimental studies identified. According to Allison and Allison (2005), 21 log Kp values for soils range from 0.3 to 4.3 L/kg without differentiating between As(III) and As(V) and thus possibly involving both oxidation states. The median, mean and standard deviation assuming a log-normal distribution are 3.4, 3.2 and 0.7 L/kg, respectively. In addition, Crommentuijn et al. (1997) reported log Kp values between 2.28 and 3.61 L/kg. Sauve et al. (2000) summarized 66 log Kp values, including studies using metal-spiked soils, ranging from 0.2 to 5.72 L/kg.
The median log Kp of 2.50 L/kg dry weight from results for the 52 soils was selected for the partitioning of As between solids and water in soil for the chemical safety assessment.
Sediment
All the information available for Kp values in sediment is based on paired monitoring data of total elemental As concentrations in sediment and dissolved As concentrations in corresponding pore water or overlying water. For freshwater sediment, 7 studies were identified that report reliable Kp values for As in 7 river systems from China (2), Japan, South- Africa, South Korea, USA and Vietnam. For each river, an average log Kp value was calculated based on all individual data reported. Log Kp values for As in sediment of the 7 river systems vary between 2.63 and 4.03 L/kg dry weight, with a median of 3.68 L/kg dry weight. Two reliable studies were identified for Kp values of As in marine sediments, reporting Kp data for 2 marine systems (Jiaozhou Bay, China and Youngsan River Estuary, South Korea). Average log Kp values for each location are 4.09 and 2.17 L/kg, respectively, with a median of 3.13 L/kg dry weight.
Values summarized in reviews by Allison and Allison (2005) and Crommentuijn et al. (1997) are in the range of the Kp values selected from the experimental studies identified. According to Allison and Allison (2005), log Kp values for freshwater sediments range from 1.6 to 4.3 L/kg without differentiating between As(III) and As(V) and thus possibly involving both oxidation states. The median, mean and standard deviation based on a log-normal distribution are 2.2, 2.4 and 0.7 L/kg, respectively. Crommentuijn et al. (1997) reported log Kp values of 4.07L/kg based on monitoring data in freshwater sediments from 3 different locations in the Netherlands and a log Kp value of 3.99L/kg based on monitoring data in marine surface water and sediments at different locations in the North Sea and Wadden Sea.
The median log Kp values of 3.68 and 3.13 L/kg dry weight were selected for the partitioning of As between solids and water in freshwater and marine sediment, respectively, for the chemical safety assessment.
Suspended matter
All the information available for Kp values in suspended matter is based on paired monitoring data of total elemental As concentrations in suspended matter and dissolved As concentrations in corresponding water samples. Reliable data for Kp of As in suspended matter was identified for 13 freshwater systems from Canada, China (4), Czech Republic, Japan, Mexico, Morocco, South Korea (2), the Netherlands and Vietnam. For each freshwater system, an average log Kp value was calculated based on all individual data reported. Log Kp values for As in suspended matter for the 13 freshwater systems vary between 2.86 and 4.97 L/kg dry weight, with a median of 4.10 L/kg dry weight. In addition, 5 studies were identified with reliable data for partitioning of As in marine suspended matter for 6 locations from China (2), South Korea (2), the Netherlands and the United Kingdom. For each location, an average log Kp value was calculated based on all individual data reported. Log Kp values for As in suspended matter for the 6 marine systems vary between 3.04 and 4.47 L/kg dry weight, with a median of 3.88 L/kg dry weight.
Values summarized in reviews by Allison and Allison (2005) and Crommentuijn et al. (1997) are in the range of the Kp values selected from these experimental studies identified. According to Allison and Allison (2005), 25 log Kp values for suspended matter range from 2.0 to 6.0 L/kg without differentiating between As(III) and As(V) and thus possibly involving both oxidation states. The median, mean and standard deviation assuming a log-normal distribution are 4.0, 3.9 and 0.5 L/kg, respectively. Crommentuijn et al. (1997) reported log Kp values of 4.00 and 4.08 L/kg based on freshwater monitoring data from different locations in the Netherlands and log Kp values of 3.45 and 3.85 L/kg based on marine monitoring data from different locations in the North Sea and Wadden Sea.
The median log Kp values of 4.10 and 3.88 L/kg dry weight were selected for the partitioning of As between solids and water in freshwater and marine suspended matter, respectively, for the chemical safety assessment.
Medium |
Test substance |
Log Kp (L/kg) |
# data |
Reference |
Soil |
|
|
|
|
Subsurface soils, Japan |
As(III) salt (not specified) |
1.88 – 3.08 |
15 |
Sakata, 1987 |
Natural soils, USA |
Na2HAsO4.7H2O |
1.68 – 3.07 |
11 |
Buchter et al., 1989 |
Natural soil, Germany |
Na salt (not specified) |
1.52 |
1 |
Wilke, 1989 |
Agricultural soils, South Korea |
Na2HAsO4.7H2O |
3.14 – 3.60 |
8 |
Nam et al., 2010 |
Alkaline soils from Southern High Plains, USA |
KH2AsO4 |
0.11 – 2.03 |
4 |
Kandajaki et al., 2015 |
Natural soils, Spain |
Arsenic background concentration in soil |
2.34-3.41 |
7 |
Romero-Freire et al., 2015 |
Natural soils, Germany, Belgium, the Netherlands and UK |
Na2HAsO4.7H2O |
3.11 – 4.06 |
6 |
Römbke et al., 2020 |
Sediment, freshwater |
|
|
|
|
Blesbokspruit, South- Africa |
Monitoring of elemental As concentrations |
3.48 (2.85 – 4.62) |
19 |
Roychoudhury and Starke, 2006 |
To Lich and Kim Nguu rivers, Vietnam |
Monitoring of elemental As concentrations |
3.68 |
1 |
Marcussen et al., 2008 |
Rio Grande, Texas, USA |
Monitoring of elemental As concentrations |
2.88 (2.08 – 3.33) |
12 |
Baeza et al., 2010 |
Ichinokawa River, Japan |
Monitoring of elemental As concentrations |
3.82 (3.30 – 4.35) |
8 |
Asaoka et al., 2012 |
Hengshi River, China |
Monitoring of elemental As concentrations |
3.99 (3.83 – 4.16) |
2 |
Liao et al., 2017 |
Youngsan River, South Korea |
Monitoring of elemental As concentrations |
2.63 (2.42 – 2.73) |
5 |
Hong et al., 2018 |
Beijiang River, China |
Monitoring of elemental As concentrations |
4.03 (3.48 – 4.37) |
9 |
Li et al., 2018 |
Sediment, marine water |
|
|
|
|
Youngsan River Estuary, South Korea |
Monitoring of elemental As concentrations |
2.17 (1.86 – 2.47) |
5 |
Hong et al., 2018 |
Jiaozhou Bay, China |
Monitoring of elemental As concentrations |
4.09 (4.06 – 4.11) |
2 |
Gu et al., 2020 |
Suspended matter, freshwater |
|
|
|
|
Rio Grand, Mexico |
Monitoring of elemental As concentrations |
2.86 (2.61 – 3.19) |
3 |
Popp and Laquer, 1980 |
Lake Yssel, the Netherlands |
Monitoring of elemental As concentrations |
3.71 (3.65 – 3.76) |
3 |
Van der Sloot et al, 1985 |
Czech Rivers |
Monitoring of elemental As concentrations |
4.43 |
1 |
Vesely et al., 2001 |
St Lawrence river, Canada |
Monitoring of elemental As concentrations |
4.10 |
1 |
Gobeil et al., 2005 |
Fez and Sebou Rivers, Morocco |
Monitoring of elemental As concentrations |
3.86 (3.35 – 4.11) |
4 |
Koukal et al., 2005 |
Ichinokawa River, Japan |
Monitoring of elemental As concentrations |
3.87 (2.97 – 4.41) |
3 |
Asaoka et al., 2012 |
Wanquan River and Wenchang/Wenjiao River, China |
Monitoring of elemental As concentrations |
4.58 |
1 |
Balzer et al., 2013 |
Day River, Vietnam |
Monitoring of elemental As concentrations |
4.80 (4.56 – 5.15) |
10 |
Duc et al., 2013 |
Taehwa River, South Korea |
Monitoring of elemental As concentrations |
3.29 (2.28 – 3.78) |
12 |
Hong et al., 2016 |
freshwater lakes, China |
Monitoring of elemental As concentrations |
4.97 (4.61 – 5.19) |
4 |
Yang et al., 2016 |
Hengshi River, China |
Monitoring of elemental As concentrations |
4.21 (4.17 – 4.24) |
2 |
Liao et al., 2017 |
Youngsan River, South Korea |
Monitoring of elemental As concentrations |
3.97 (3.88 – 4.11) |
5 |
Hong et al., 2018 |
Beijiang River, China |
Monitoring of elemental As concentrations |
4.28 (4.19 – 4.42) |
7 |
Li et al., 2018 |
Suspended matter, marine water |
|
|
|
|
The southern Bright and British Channel, UK |
Monitoring of elemental As concentrations |
4.47 (4.08 – 5.10) |
7 |
Van der Sloot et al, 1985 |
Wadden Sea, the Netherlands |
Monitoring of elemental As concentrations |
4.01 (3.92 – 4.12) |
11 |
Van der Sloot et al, 1985 |
Estuary of Wanquan River and Wenchang/Wenjiao River, China |
Monitoring of elemental As concentrations |
4.22 |
1 |
Balzer et al., 2013 |
Taehwa River Estuary, South Korea |
Monitoring of elemental As concentrations |
3.39 (3.02 – 3.87) |
8 |
Hong et al., 2016 |
Youngsan River Estuary, South Korea |
Monitoring of elemental As concentrations |
3.04 (2.88 – 3.22) |
5 |
Hong et al., 2018 |
Jiaozhou Bay, China |
Monitoring of elemental As concentrations |
3.75 (3.73 – 3.76) |
2 |
Gu et al., 2020 |
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