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Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: study conducted at university laboratory with known expertise in these types of analysis

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2007

Materials and methods

Principles of method if other than guideline:
Smog chamber/FTIR techniques were used to determine the following properties for this compound: (i) kinetics of its reaction with chlorine atoms, (ii) kinetics of its reaction with hydroxyl radicals, (iii) kinetics of its reaction with ozone and (iv) atmospheric implications.
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Any other information on results incl. tables

Long path length FTIR-smog chamber techniques were used to determine k(polyhaloalkene) = (7.03 ± 0.59) · 10E-11, k(OH + polyhaloalkene) = (1.05 ± 0.17) · 10E-12, and k(O3 + polyhaloalkene) = (2.77 ± 0.21) · 10E-21 cm3 molecule/s in 700 Torr of N2, N2/O2, or air diluent at 296 K. Polyhaloalkene has an atmospheric lifetime of approximately 11 days and a global warming potential (100 yr time horizon) of four. Polyhaloalkene has a negligible global warming potential and will not make any significant contribution to radiative forcing of climate change.

Applicant's summary and conclusion

Conclusions:
Long path length FTIR-smog chamber techniques were used to determine k(Cl + polyhaloalkene) = (7.03 ± 0.59) · 10E-11,
k(OH + polyhaloalkene) = (1.05 ± 0.17) · 10E-12, and k(O3 + polyhaloalkene) = (2.77 ± 0.21) · 10E-21 cm3 molecule/s in 700 Torr of
N2, N2/O2, or air diluent at 296 K. Polyhaloalkene has an atmospheric lifetime of approximately 11 days and a global warming potential (100 yr time horizon) of four. Polyhaloalkene has a negligible global warming potential and will not make any significant contribution to radiative forcing of climate change.