Browsing by Author "Fakinle, Bamidele Sunday"

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Open Access
    Personal exposures to particulate matter in various modes of transport in Lagos city, Nigeria
    (Cogent Enviromental Science, 2016-11-17) Odekanle, Ebenezer Leke; Fakinle, Bamidele Sunday; Akeredolu, F.A; Sonibare, Jacob
    Urban air pollution continues to be a major problem in Nigerian cities. Most studies of air pollution in Nigeria have concentrated on the background air quality and its eects on people outside vehicles. However, it has been suggested that in-vehicle pollution is often worse than pollution outside the vehicle. This study focuses on personal exposures to PM10 and PM2.5 in various modes of transportation in Lagos city. Six roadways which are representative of commercial, industrial, and residential areas of the city were selected. Measurements were made inside four major modes of transportation in the city: cars, buses, Bus Rapid Transit (BRT), and walking for PM10 and PM2.5. Measurements were done for each mode twice a day (morning and afternoon) for 12days. The highest average PM10 and PM2.5 concentra- tions were measured for pedestrian (476.35 and 216.60μg/m3, respectively) dur- ing rush hours. The result showed that pedestrians were found to be exposed to the highest average PM10 and PM2.5 concentrations, while commuters in cars, BRT and buses were exposed to respective decreasing concentrations of PM10. Similarly, commuters in BRT were exposed to the lowest concentrations of PM2.5 regardless of time of day. The results obtained were much higher than the results for London but comparable to Mexico city and Taiwan’s results. This study has provided information that can help commuters to choose appropriate travel behavior that can minimize their exposure to particulate matter
  • Thumbnail Image
    Item
    Open Access
    Total Sulfur Levels in Refined Petroleum Products of Southwestern Nigeria Using UV/VIS Spectrophotometer
    (Taylor & Francis, 2014-12-08) Olatunji, Samuel; Adeniran, Jamiu Adetayo; Fakinle, Bamidele Sunday; Sonibare, Jacob
    This study employed turbidimetric method using a UV/VIS spectrophotometer to determine the total sulfur levels of refined petroleum products in Southwestern Nigeria. The sulfur concentrations in the analyzed fuel samples were 0.0019–0.0178 wt% and 0.027–0.169 wt% for gasoline and diesel, respectively. Sulfur levels in the selected samples were below the Nigerian standard for gasoline and diesel while 89.9% of the samples exceeded the U.S. Environmental Protection Agency standard. The turbidimetric method showed better performance than the gravimetric method. The results gave insight into the adverse environmental impact the nonuniform quality of fuels imported could pose to the country