Spatio-Temporal Variations in Urban Vehicular Emissions in Uyo City, Akwa Ibom State, Nigeria

Prince C. Mmom and Ubokobong Essiet

Journal of Sustainable Development, 2014, vol. 7, issue 4, 272

Abstract: The increasing volume of road traffic and congestion strongly impact on air quality in most urban areas of the developing countries. This paper therefore investigates pollution from automobiles during traffic peak periods at intersections on some selected roads in Uyo, Nigeria. It estimates the level of some selected air pollutants which are largely products of internal combustion in motor vehicle engines, namely- Nitrogen dioxide (NO2), Carbon monoxide (CO), Sulphur dioxide (SO2), and Hydrogen sulphide (H2S), in six sample locations. Monitoring of ambient hourly concentration of NO2, CO, SO2 and H2S, took place at six major intersections in Uyo during morning and evening (peak traffic hours) and afternoon (off-peak hours), hence variations in concentration of these pollutants was determined. Emissions concentration for CO, was found to be higher during the peak periods due to traffic congestion and intersection, where long waiting time for vehicles were observed and however exceeded the Federal Ministry of Environment limits / Standards. Also, the concentration of SO2 was alarmingly high, especially in location C. Levels of Nitrogen oxides (NO2) and Hydrogen sulphide (H2S) measured, varied in time and space and was also above the recommended municipal and international standards in all the six locations during the peak traffic period. This finding thus has implications for public health in the region under study as such calls for the need to control emissions of these obnoxious air pollutants in the city.

Date: 2014
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ccsenet.org/journal/index.php/jsd/article/download/39132/21759 (application/pdf)
https://ccsenet.org/journal/index.php/jsd/article/view/39132 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ibn:jsd123:v:7:y:2014:i:4:p:272

Access Statistics for this article

More articles in Journal of Sustainable Development from Canadian Center of Science and Education Contact information at EDIRC.
Bibliographic data for series maintained by Canadian Center of Science and Education ().