Field, analytical, and seasonal variations of urban surface films.
Published: 2006
Language: eng
Number of pages: 104
ISBN-13: 9780494160749
Description: Field sampling, analytical, and seasonal variability of atmospherically-derived compounds on surface films developed on windows were investigated. In addition, surface films were chemically characterized on TiO2 coated glass to asses its ability to transform selected chemicals in films. Field sampling and analytical variation ranged from 0.8 to 54% for the selected chemicals analyzed (PAH, monocarboxylic acids, elements), suggesting that an alternative sampling method to using kimwipes should be explored. Of the six chemical analyzed on surface films including PAH, n-alkanes, monocarboxylic acids, elements, SO4-2 and NO3 -, only elements and monocarboxylic acids varied seasonally, with high concentrations during winter and summer, respectively. TiO2 coated glass was able to partially degrade some of the organic compounds (PAH,  n-alkanes, monocarboxylic acids) and to increase concentrations of SO4-2.
Notes: Source: Masters Abstracts International, Volume: 44-06, page: 2882.

Thesis (M.A.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.