"Long term trend and source apportionment of ambient VOCs in Windsor" by Zhi Li

Date of Award

2013

Publication Type

Master Thesis

Degree Name

M.Sc.

Department

Civil and Environmental Engineering

Keywords

Applied sciences, Cmb modeling, Long-term trend, Source apportionment, Voc

Supervisor

Xu, Xiaohong

Rights

info:eu-repo/semantics/openAccess

Abstract

Ambient VOC concentrations measured at Windsor West Station from 2001 to 2009 were used for a VOC source apportionment study using Chemical Mass Balance model. The ranking of source contribution estimates was: "Vehicle Emission", "Commercial Natural Gas", "Industrial Refinery", "Liquefied Petroleum", "Coke Oven", "Architectural Coating", and "Biogenic Emission". From 2003 to 2009, PAMS measurements in Windsor decreased by approximately 37%. Source contribution reduction of "Vehicle Emission" accounted for 57.6% of total source contribution reduction. Source contribution reduction percentages of "Vehicle Emission", "Architectural Coating", and "Biogenic Emission" were above PAMS reduction percentage; however, source contribution reduction percentages of "Commercial Natural Gas", "Industrial Refinery", "Coke Oven", and "Liquefied Petroleum" were below it. From 2001 to 2009, a seasonal pattern of PAMS measurements with low level in winter and spring but high in summer and fall was observed in some years. A similar seasonal pattern of "Vehicle Emission" source contributions was also obeserved in most years.

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