Barium di(acetate)

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

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

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

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

Media:

soil

Test material

Test material information

Constituent 1

Reference substance name:

Barium

EC Number:

231-149-1

EC Name:

Barium

Cas Number:

7440-39-3

Molecular formula:

Ba

IUPAC Name:

Barium

Test material form:

solid

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

Conclusions:

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