4,4'-isopropylidenediphenol

Monitoring data

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

Test material information

Constituent 1

Reference substance name:

4,4'-isopropylidenediphenol

EC Number:

201-245-8

EC Name:

4,4'-isopropylidenediphenol

Cas Number:

80-05-7

Molecular formula:

C15H16O2

IUPAC Name:

4-[2-(4-hydroxyphenyl)propan-2-yl]phenol

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.