Registration Dossier

Administrative data

Endpoint:
other distribution data
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 1 August to 6 October 1983
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP: yes - Guideline: not available

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983

Materials and methods

GLP compliance:
yes
Type of study:
volatility
Media:
water - air

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid: viscous
Details on test material:
- Analytical purity:99.8
- Lot/batch No.: 61077
- Other: technical grade PCBT Lot 633F02, 97.8%

Results and discussion

Any other information on results incl. tables

First order rate constants were calculated from plots of PCBT concentration and oxygen concentration versus time. From these rate constants, the average ratio of the PCBT volatilization rate to the oxygen reareation rate (KPCBT/Koxygen)was determined to be 0.64 ± 0.04.

Applicant's summary and conclusion

Conclusions:
The results predicts that the PCBT volatilization rate from natural waters is slightly slower that than the oxygen reareation rate. The PCBT volatilization rate from any natural water may also be calculated if the water reareation rate is known.