Registration Dossier

Diss Factsheets

Environmental fate & pathways

Additional information on environmental fate and behaviour

Administrative data

Endpoint:
additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Published monitoring data

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Formation of secondary air pollutants and their occurrence in Europe
Author:
Fuhrer, J.
Year:
1985
Bibliographic source:
Experientia (Basel) 41: 286-301
Reference Type:
secondary source
Title:
Acid precipitation: Effects on Forest and Fish
Author:
Overrein, L.N., Seip, H.M., Tollan A. Eds
Year:
1980
Bibliographic source:
Final report. Oslo. SNSF Project 1972-1980
Reference Type:
secondary source
Title:
Acidity rainfall in the United Kingdom
Author:
Warren Spring Laboratory
Year:
1982

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
A brief summary regarding deposition is provided in the SIDS dossier
GLP compliance:
not specified
Type of study / information:
A brief summary regarding deposition is provided in the SIDS dossier

Test material

Constituent 1
Chemical structure
Reference substance name:
Ammonia, anhydrous
EC Number:
231-635-3
EC Name:
Ammonia, anhydrous
Cas Number:
7664-41-7
Molecular formula:
H3N
IUPAC Name:
ammonia
Details on test material:
Ammonia

Results and discussion

Any other information on results incl. tables

Annual average concentrations in wet deposition locations in 21 European countries vary from 0.12 to 1.74 mg NH4+-N/L. In the Netherlands, the mean annual concentration for 1978-1982 was 2.4 mg NH4+-N/L, corresponding to a wet deposition of 12.2 kg/ha per year. The wet deposition inranges from 1.3 – 8.6 kg/ha per year and in thefrom 3.2 to 6.0 kg/ha per year. Wet deposition accounts for only 1/3 of the total deposition of NH3and NH4+. On average, 28.4 kg NH3+ NH4+is deposited per ha per year.

Applicant's summary and conclusion

Executive summary:

Annual average concentrations in wet deposition locations in 21 European countries vary from 0.12 to 1.74 mg NH4+-N/L. In the Netherlands, the mean annual concentration for 1978-1982 was 2.4 mg NH4+-N/L, corresponding to a wet deposition of 12.2 kg/ha per year. The wet deposition inranges from 1.3 – 8.6 kg/ha per year and in thefrom 3.2 to 6.0 kg/ha per year. Wet deposition accounts for only 1/3 of the total deposition of NH3and NH4+. On average, 28.4 kg NH3+ NH4+is deposited per ha per year.