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Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
other: Statistical analysis of surface water and sediment concentrations in North America and Europe
Adequacy of study:
key study
Study period:
1997 to 2007
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
publication
Title:
Exposure analysis of bisphenol A in surface water systems in North America and Europe
Author:
Klecka GM, Staples CA, Clark KE, Van der Hoeven N, Thomas DE, Hentges SG
Year:
2009
Bibliographic source:
Environ Sci Technol. 43: 6145-6150

Materials and methods

Principles of method if other than guideline:
This study was conducted to develop a statistical understanding of concentrations of Bisphenol A in both surface water and sediments of North American and European systems.
GLP compliance:
no
Type of measurement:
background concentration
Media:
other: surface water and sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Details on results:
North America:
Surface water (fresh):
n=1068 total weighted observations, n=853 non-detected values
Median = 0.081 microgram/L; 95th percentile = 0.47 microg/L

Surface water (marine): no data available

Sediment (fresh):
n=71 total weighted observations, n=32 nondected values
Median = 0.6 ng/g, dry weight (dw); 90th percentile = 3.4 ng.g, dw (95th percentile could not be calculated)

Sediment (marine):
n=14 total weighted observations, n=11 nondected values
Median = 3.5 ng/g, dw; 90th and 95th percentiles could not be calculated

Europe:
Surface water (fresh):
n=848 total weighted observations, n=415 non-detected values
Median = 0.01 microgram/L; 95th percentile = 0.35 microg/L

Surface water (marine):
n = 115 total weighted observations, n=58 non-detected values
Median = 0.0016 microgram/L; 95th percentile = 0.088 microg/L

Sediment (fresh):
n =249 total weighted observations, n=75 nondected values
Median = 16 ng/g, dw; 90th percentile = 162 ng.g, dw; 95th percentile = 256 ng/g, dw

Sediment (marine):
n =67 total weighted observations, n=44 nondected values
Median = 8.5 ng/g, dw; 90th percentile = 207 ng.g, dw; 95th percentile = 566 ng/g, dw

Applicant's summary and conclusion

Executive summary:

To assess their potential ecological significance, exposure concentrations were compared with available regulatory criteria. The results suggest that the frequency of locations in which concentrations are likely to cause adverse effects in aquatic systems is low, with the exception of sediments collected from some highly urbanised and industrial locations.