1,1-dichloroethylene

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

1998-2000

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Well documented study with special emphasis on methodological (analytical) aspects

Data source

Reference

Reference Type:

publication

Title:

Unnamed

Year:

2003

Materials and methods

Principles of method if other than guideline:

no specific relevenant guideline followed

GLP compliance:

not specified

Type of measurement:

background concentration

Media:

other: estuary water (Scheldt)

Test material

Test material information

Constituent 1

Reference substance name:

1,1-dichloroethylene

EC Number:

200-864-0

EC Name:

1,1-dichloroethylene

Cas Number:

75-35-4

Molecular formula:

C2H2Cl2

IUPAC Name:

1,1-dichloroethene

Study design

Details on sampling:

water samples were taken 2 times per year for 3 years from 14 stations

Results and discussion

Concentration

Country:

Belgium

Location:

Scheldt estuary

Substance or metabolite:

substance

Remarks:

1,1-dichloroethene

Conc.:

1.9 other: ng/l

Details on results:

n: 84, n censored: 35, SD: 1.9, median: 1.3, IQR: 1.9
19-20/05/98: <1.7-11 ng/l
14-15/10/98: <1.7-2.5 ng/l
11-12/05/99:<1.7-7.8 ng/l
02-03/11/99:<1.7-3.8 ng/l
03-04/04/00:<1.7-3.4 ng/l
13-14/11/00:<1.7-3.2 ng/l

Any other information on results incl. tables

-

Applicant's summary and conclusion

Conclusions:

The mean concentration of 1,1-dichloroethene in the scheldt estuary was 1.9 ng/l, the median being 1.3 ng/l (IQR 1.9).

Executive summary:

The mean concentration of 1,1-dichloroethene in the scheldt estuary was 1.9 ng/l, the median being 1.3 ng/l (IQR 1.9).