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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Monitoring data

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Administrative data

monitoring data
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Monitoring data (ambient and background) that were generated in National and International Monitoring surveys were analysed and relevant PEC-values were derived in line with the principles given in ECHA-Guidance documents

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
other: ECHA (European Chemicals Agency), 2008. RIP 3.2: Guidance on information requirements and chemical safety assessment. Chapter R.16: Environmental Exposure Estimation.
GLP compliance:
not specified
Type of measurement:
other: ambient and background concentrations

Test material

Constituent 1
Reference substance name:
EC Number:
EC Name:
Cas Number:
Molecular formula:
Test material form:

Results and discussion

Any other information on results incl. tables

The results of the performed data analysis on the FOREGS database are presented here. A general overview for Europe is given, based on the outcome of the FOREGS-program. The FOREGS Geochemical Baseline Mapping Program's main aim was to provide high quality, multi-purpose environmental geochemical baseline data for Europe. In the results data from EU-27 countries is displayed for subsoil and topsoil analyses.

The FOREGS data resulted in 837 soil samples spread over Europe. Barium levels ranged between 10 mg/kg dry wt and 1669 mg/kg with 50th/90th percentiles of 65 and 144 mg/kg dry wt. The maximum values were determined in the UK and France (over 1300 mg/kg) where the lowest concentrations are found in Denmark and France. All data points appeared to be above or equal to the detection limit (1 mg/kg dry wt).

The tables below presents the country-specific 50th and 90th percentiles of baseline Ba levels in topsoil.

The data that were presented in these Tables were used for the construction of an environmental concentration distribution for Europe. It was decided, however, to exclude the countries that do not belong to the EU-27 (including Norway). The developed ECD can be considered as a reliable attempt to derive a typical median value of barium in European topsoil. The overall median in Europe (50th percentile of the generated log-triangular distribution) is 61.9 mg/kg dry wt.

 Country 50th / 90th percentile (mg/kg dw)  Country  50th / 90th percentile (mg/kg dw) 
Austria  75.2 / 204.4 Latvia  50.9 / 106.7 
Belgium  111.6 / 178.4 Lithuania  43.1 / 65.3 
Czech Republic  106.9 / 219.7 Netherlands  42.0 / 101.0 
Denmark  17.3 / 33.5 Norway  42.7 / 94.6 
Estonia  45.3 / 63.7 Poland  34.3 / 70.6
Finland  34.9 / 59.3 Portugal  78.5 / 148.5 
France  74.5 / 137.5 Slovakia  91.8 / 174.8 
Germany  85.7 / 216.9 Slovenia  103.3 / 118.7
Greece  83.2 / 159.8 Spain  78.6 / 156.0 
Hungary  73.1 / 161.3 Sweden  44.1 / 69.3 
Ireland  54.5 / 122.2  United Kingdom  61.4 / 124.7 
Italy  102.4 / 331.5   

Applicant's summary and conclusion

Data can be used for exposure assesment and risk characterisation purposes of barium in the terrestrial compartment