2-Ethylhexyl trans-4-methoxycinnamate

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

other: literature review of environmental concentrations

Adequacy of study:

key study

Study period:

2001

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: The monitoring data were collected and the validity of the analytical methods and results was evaluated.

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Cross-reference 2

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

grey literature

Title:

Unnamed

Year:

2001

Materials and methods

Principles of method if other than guideline:

Concentrations measured in various EU countries were evaluated

Type of measurement:

other: concentrations in areas used for recreational swimming

Media:

surface water

Test material

Test material information

Constituent 1

Reference substance name:

2-​Propenoic acid, 3-​(4-​methoxyphenyl)​-​, 2-​ethylhexyl ester, (2E)​-, S-isomer

Molecular formula:

C18 H26 O3

IUPAC Name:

2-​Propenoic acid, 3-​(4-​methoxyphenyl)​-​, 2-​ethylhexyl ester, (2E)​-, S-isomer

Specific details on test material used for the study:

The concentration of 2-ethylhexyl (2E)-3-(4-methoxyphenyl)acrylate (EHMC, also known as OMC) was monitored in environmental systems.

Name of concerned substance: 2-ethylhexyl (2E)-3-(4-methoxyphenyl)acrylate
Alternative names: 2-Ethylhexyl trans-4-methoxycinnamate
Abbreviations: EHMC, OMC
CAS no: 83834-59-7

Results and discussion

Concentration

Concentration 1

Key result

Country:

Switzerland

Location:

Lake of Zürich

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.002 - 0.026 µg/L

Remarks on result:

other: lower limit was < 0.002 µg/L. Measured in July 1998, reported by Poiger et al, 2001

Concentration 2

Key result

Country:

Switzerland

Location:

Lake of Zürich

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.015 mg/kg dw

Remarks on result:

other: Sediment concentrations were below 0.015 mg/kg d.w. Measured in July 1998, reported by Poiger et al, 2001

Concentration 3

Key result

Country:

Switzerland

Location:

Hüttnersee

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.002 - 0.019 µg/L

Remarks on result:

other: lower limit was < 0.002 µg/L. Measured in July 1998, reported by Poiger et al, 2001

Concentration 4

Key result

Country:

Switzerland

Location:

Rhine River below Basel

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.001 - 0.028 µg/L

Remarks on result:

other: Measured by Gewässerschutzamt Basel-Stad, 1997. Until mid May OMC was not detected. Next, peaks were found regularly until end of August. 35 out of 49 measurements were at of below 5 ng/L, 12 between 6 and 10 ng/L. Extremes 13 and 28 ng/L.

Concentration 5

Key result

Country:

United Kingdom of Great Britain and Northern Ireland (the)

Location:

Watershed area of the Aire, influents to STP

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

3.2 - 5.2 µg/L

Remarks on result:

other: influent concentrations, September 2000

Concentration 6

Key result

Country:

United Kingdom of Great Britain and Northern Ireland (the)

Location:

Watershed area of the Aire, effluents from STP

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.1 - 0.3 µg/L

Remarks on result:

other: effluent concentrations, September 2000

Concentration 7

Key result

Country:

United Kingdom of Great Britain and Northern Ireland (the)

Location:

Watershed area of the Aire, river

Substance or metabolite:

substance

Remarks:

OMC

Conc.:

0.002 - 0.006 µg/L

Remarks on result:

other: Predicted average concentrations in rivershed areas based on measurements on effluents and river. The level at the point of discharge was 0.057 µg/L (model GREAT-ER, reported by Sabaliunas et al, 2001).

Any other information on results incl. tables

.

Applicant's summary and conclusion

Conclusions:

Measured concentrations of the test substance in surface water in summer ranged from < 1 and 28 ng/L and the concentrations in sediment were below 0.015 mg/kg d.w.

Executive summary:

A literature study on the environmental risks of various UV-filters included monitoring data for the test substance, called OMC in this report. Measured concentrations in surface water are available from Switzerland (1998) and United Kingdom (2000). In summer they ranged from < 1 and 28 ng/L and the concentrations in sediment were below 0.015 mg/kg d.w.