Premium
The atmospheric degradation of 1‐bromopropane (CH 3 CH 2 CH 2 Br): The photochemistry of bromoacetone
Author(s) -
Burkholder James B.,
Gilles Mary K.,
Gierczak Tomasz,
Ravishankara A. R.
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2002gl014712
Subject(s) - photodissociation , bromine , ozone , degradation (telecommunications) , photochemistry , atmospheric chemistry , absorption (acoustics) , chemistry , materials science , environmental chemistry , organic chemistry , telecommunications , computer science , composite material
The atmospheric degradation of 1‐bromopropane and its degradation products are examined with respect to their ability to deplete stratospheric ozone. It is shown that the OH initiated oxidation of 1‐bromopropane does not lead to long lived bromine containing species. Laboratory measurements of the UV absorption cross sections and photodissociation quantum yields of chloroacetone and bromoacetone are presented. The atmospheric photolysis lifetime of bromoacetone at mid‐latitudes is determined to be on the order of hours.