TY  - BOOK
AU  - Solanke,Oriyomi Bashiru
AU  - Mosaberpanah,Mohammad Ali
TI  - CONTRIBUTION OF ROAD TRAFFIC TO AIR POLLUTION IN LAGOS STATE
PY  - 2022///
KW  - Pollution
KW  - Dissertations, Academic
KW  - Transportation
N1  - Thesis (MSc) - Cyprus International University. Institute of Graduate Studies and Research Civil Engineering Department; Includes bibliography (sheets 55-59)
N2  - ABSTRACT
The goal of this research work was to determine motor vehicle emissions contributions 
to air pollution at numerous locations in Lagos State, Nigeria. Ikorodu-Ketu, Festac 
Town– Iyana Oba, Toll gate Sango–Ijaiye, Oshodi–Iyana Ipaja and Lekki-Ikoyi Link 
Bridge were the locations which have been selected for this study. This research was 
done on suspended particulate matter and air contaminants namely carbon monoxide 
(CO), and sulphur dioxide (SO2) while others are nitrogen dioxide (NO2) and hydrogen 
sulphide (H2S). Carbon monoxide, nitrogen dioxide, hydrogen sulphide, and hydrogen 
sulphide in the air were detected using an equipment called the Kanomax Multi-Gas 
Detector 2700 Series. In order to quantify the suspended particulate matter, the TSI 
Aero Trak Handheld Particle Counter Model 9303 was used. The traffic observation 
was done during the peak-period of traffic congestion in these areas. The usual periods 
are between 8:00AM and 10:00AM in the morning while it is around 4.00-6.00PM in 
the evening. These were keenly observed for five (5) days i.e. from day 1 to day 5. A 
manual count was done at the various location in these hours and recorded. It was 
revealed that Ikorodu-Ketu has the greatest concentration of Carbon Monoxide (CO) 
substance in the morning with 49.00ppm and 83.00ppm and Oshodi- Iyana Ipaja has 
the highest in the evening with 60- 120ppm. The high accumulation of CO in IkoroduKetu and Oshodi-Iyana Ipaja can be attributed to the intensive automobile activity. 
Traffic flow influenced the amount of CO greatly in the area concentration of CO at 
places of free-flowing vehicles was lower than that for places with obstructed flow of 
traffic. This observation was gotten as a result of the statistical evaluation of the data 
collected from the sampling station. Through these observations, it was deduced that 
an increment in traffic congestions is a factor for increase in the concentration of air 
pollutants emitted by vehicles in Lagos. The study also revealed that there is a variation 
in urban air quality as a result of the fluctuation in vehicular movement and emissions.
From the results obtained, all pollutants except H2S, showed a strong correlation with 
nature of traffic. It is however unfortunate that the pollutants that were measured in 
these areas surpassed and are above the standard of World Health Organization (WHO) 
for out-of-doors air quality. 
Keywords: Carbon Monoxide, Emission, Pollution, Sulphur (iv) Oxide, Traffic 
Density, Transportation
ER  -