Techno Press

Advances in Environmental Research   Volume 2, Number 2, June 2013, pages 143-153
Characterization of odourous compounds in air, leachate, stream and well in and around Taju-Bello Dumpsite, Lagos, Nigeria
L. Azeez, O.A. Oyedeji, I.O. Abdulsalami and S.O. Adewuyi

Abstract     [Full Text]
    This study investigated the concentrations of odourous compounds in air, leachate, stream and well in and around Taju-Bello dumpsite. Meteorological parameters (temperature, relative humidity, wind velocity) and six odour families comprising sulphur (H2S), ammonia (NH3), aromatic (benzene, toluene, ethylbenzene, styrene, p-xylene, m-xylene), aliphatic (hexane), oxygenated (formaldehyde, acetaldehyde) and halogenated (tetrachloroethene, trichloroethene, carbontetrachloride) compounds were measured. Meteorological parameters suggested low dispersal of pollutants at L1 with possible perspiration and suffocation from exposure to high temperature, relative humidity and low wind velocity. The trend of abundance of odourous compounds at studied locations is of the order dumpsite (L1) > leachate (L4) > 100 m away from dumpsite (L2) > 200 m away from dumpsite (L3) > stream (L5) > well (L6). H2S, Oxygenated and aromatic compounds were the major contributors to odour strength in these locations. Correlation, factor and cluster analyses of the data revealed similarities of sources as biogenics and xenobiotics inherent in the wastes as the main sources of these odourous compounds.
Key Words
    odourous compounds; dumpsite; GC-FID; meteorological parameters; cluster analysis
L. Azeez, I.O. Abdulsalami: Industrial and Environmental Chemistry Unit, Chemical Sciences Department, Fountain University, Osogbo, Nigeria; O.A. Oyedeji: Department of Science Laboratory Technology, The Federal Polytechnic Ilaro, Nigeria; S.O. Adewuyi: Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria

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