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January 24, 2010 | History

Field, analytical, and seasonal variations of urban surface films 1 edition

Field, analytical, and seasonal variations of urban surface films
Nadia Alejandra Hernandez Mart ...

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Field, analytical, and seasonal variations of urban surface films.

Published 2006 .
Written in English.

About the Book

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.

Edition 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.

The Physical Object

104 leaves.
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