Registration Dossier
Registration Dossier
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EC number: 231-302-2 | CAS number: 7488-55-3
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to soil microorganisms
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1997, 1989
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: no glp, no methode, citated by RIVM
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- see primary source:
Liang CN, Tabatabai MA. 1977. Effects of trace elements on nitrogen mineralization in soils. Environ Pollut 12: 141-147.
Wilke BM. 1989. Long-term effects of different inorganic pollutants on nitrogen transformations in a sandy cambisol. Biol Fertil Soils 7: 254-258. - GLP compliance:
- no
- Analytical monitoring:
- not required
- Vehicle:
- not specified
- Test organisms (inoculum):
- soil
- Total exposure duration:
- 20 d
- Remarks:
- N-mineralisation
- Moisture:
- n.a.
- Duration:
- 20 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 593 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition N-mineralisation
- Remarks on result:
- other: clay 23%
- Duration:
- 20 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 593 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition N-mineralisation
- Remarks on result:
- other: clay 45 %
- Duration:
- 20 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 297 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition N-mineralisation
- Remarks on result:
- other: clay 30 %
- Duration:
- 20 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 297 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition N-mineralisation
- Remarks on result:
- other: clay 34 %
- Duration:
- 20 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 234 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition N-mineralisation
- Remarks on result:
- other: clay 0%, field
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- NOEC(20d)=297 mg/kg dw
- Endpoint:
- toxicity to soil microorganisms
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1983
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: no glp, no methode, citated by RIVM
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- primary source:
Lighthart B, Baham J, Volk VV. 1983. Microbial respiration and chemical speciation in
metal-amended soils. J Environ Qual 12: 543-548. - GLP compliance:
- not specified
- Analytical monitoring:
- yes
- Vehicle:
- not specified
- Test organisms (inoculum):
- soil
- Total exposure duration:
- 9 d
- Moisture:
- 4.7
- Key result
- Duration:
- 9 d
- Dose descriptor:
- EC10
- Effect conc.:
- 6.8 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition
- Remarks on result:
- other: clay 11 %
- Key result
- Duration:
- 9 d
- Dose descriptor:
- EC10
- Effect conc.:
- 25 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition
- Remarks on result:
- other: clay 21 %
- Key result
- Duration:
- 9 d
- Dose descriptor:
- EC10
- Effect conc.:
- 760 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition
- Remarks on result:
- other: clay 51%
- Key result
- Duration:
- 9 d
- Dose descriptor:
- EC10
- Effect conc.:
- 687 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- dissolved
- Remarks:
- Sn
- Basis for effect:
- other: inhibition
- Validity criteria fulfilled:
- yes
- Conclusions:
- EC10(9d)=6.8 mg/kg dw
Referenceopen allclose all
Description of key information
Key value for chemical safety assessment
- Long-term EC10 or NOEC for soil microorganisms:
- 6.8 mg/kg soil dw
Additional information
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