Reaction mass of 1,4-dichlorobut-2-ene; 3,4-dichlorobut-1-ene

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

other: Migrated dataset

Adequacy of study:

other information

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: Adopted according to OECD SIDS. The original source is not available and has not been reviewed.

Data source

Reference

Reference Type:

publication

Title:

Speciation of volatile aromatic and chlorinated hydrocarbons in an urban atmosphere using TCT-GC/MS.

Author:

Baroja O, Rodríguez E, Gomez de Balugera Z, Goicolea A, Unceta N, Sampedro C, Alonso A, Barrio J (as cited in OECD SIDS).

Year:

2005

Bibliographic source:

J. Environ. Sci. Health, A40 (2), 343-367

Materials and methods

Principles of method if other than guideline:

other: TCT-GC/MS

GLP compliance:

not specified

Type of measurement:

concentration at contaminated site

Media:

air

Test material

Test material information

Constituent 1

Reference substance name:

1,4-dichlorobut-2-ene

EC Number:

212-121-8

EC Name:

1,4-dichlorobut-2-ene

Cas Number:

764-41-0

Molecular formula:

C4H6Cl2

IUPAC Name:

1,4-dichlorobut-2-ene

Details on test material:

cis-1,2-Dichlorobut-2-ene used as reference, purchased from Restek (Bellafonte, PA, USA). It is not reported whether trans-isomer was also used for calibration. In the results part, it is reported that 1,2-dichlorobut-2-ene was found

Results and discussion

Any other information on results incl. tables

In Vitoria-Gasteiz (Northern Spain), several VOC (volatile organic compounds), including 1,4-dichlorobut-2-ene, were analyzed in a campaign to find out the concentrations of atmospheric pollutants in urban air during the period January 1999 to December 2002. The detection limit was reported to be 0.01 µg/m3. In 1999, 1,4-dichlorobut-2-ene was registered in a frequency of occurrence of 10.5% with an arithmetic mean of 0.06 µg/m3 (range of concentration: < 0.01 -1.83 µg/m3). In 2000, no 1,4-dichlorobut-2-ene was detected.

Only in 1999, also several other compounds were found with an incidence of less than 25 %: 1,1,1,2-tetrachloroethane, tert-butylbenzene, butylbenzene, bromobenzene, and others. None of these substances was detected in 2000-2002.

Baroja and coworkers concluded that these results were due to an unspecified contamination source. Baroja and coworkers changed the sampling site only in January 2001. In their Conclusions (page 364), Baroja and coworkers also do not mention 1,4-dichlorobut-2-ene and other uncommon substances to occur in urban air.