Source apportionment and ozone formation potential of volatile organic compounds in Lagos (Nigeria) |
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| Authors: | AA Olajire L Azeez |
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| Institution: | 1. Department of Pure and Applied Chemistry, Industrial and Environmental Chemistry Unit, Ladoke Akintola University of Technology, Ogbomoso, Nigeria;2. Department of Chemical Sciences, Fountain University, Osogbo, Nigeria |
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| Abstract: | Concentrations of volatile organic compounds (VOCs) of the city air in Oba Akran road, Lagos were investigated. The chlorinated VOCs and xylene in Oba Akran were high. The average benzene/toluene ratio in Oba Akran was 1.7 suggesting that vehicular emission was a possible VOC source in most areas of Oba Akran. The toluene/(m+p-xylene) ratio also suggests a common source of toluene and xylene at these sites, presumably organic solvent used by industries located at Oba Akran. Our results showed that 7.10 tons of CO 2 equivalents of VOCs are being emitted per year from Oba Akran. Xylenes were found to be the largest contributor to the ozone formation followed by trichloroethylene. A multivariate statistical analysis (Factor analysis extracted with Principal Component Analysis) has been applied to a set of data, and it was found that the main principal components, extracted from the air VOC pollution data, were related to gasoline and oil combustion/industrial activities. |
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| Keywords: | factor analysis Nigeria Oba Akran road principal component analysis (PCA) VOCs volatile organic compounds |
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