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Ecotoxicological information

Additional ecotoxological information

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Administrative data

Endpoint:
additional ecotoxicological information
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study was rated "1" (valid) or "2" (valid with restrictions) by the Danish Rapporteur. An alternate rating of "4" (not assignable) was assigned by an industry consultant. Provided for information only.

Data source

Reference
Reference Type:
publication
Title:
Factors affecting L-asparaginase activity in soils
Author:
Frankenberger, Jr., W.T. and M.A. Tabatabai
Year:
1991
Bibliographic source:
Biology and Fertility of Soils. 11:1-5

Materials and methods

Principles of method if other than guideline:
see below

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Type:
Constituent

Results and discussion

Any other information on results incl. tables

Study reported that L-asparaginase activity was significantly (p0.01) correlated with organic-C (r=0.86), total N (r=0.78), amidase activity (r=0.82), and urease activity (r=0.79).

Ni was reported to be one of the most effective inhibitors of L-asparaginase activity in soil, with an average inhibition of >=20%.

Applicant's summary and conclusion

Conclusions:
The study was focussed on the action of Ni2+ in solution and therefore, it can be accepted also for nickel difluoride. Accepting data from nickel chloride for nickel difluoride is more conservative as the latter has a lower solubility.
Executive summary:

STUDY RATED BY AN INDEPENDENT REVIEWER.

ROBUST SUMMARY DEVELOPED BY AN INDEPENDENT REVIEWER.