Affiliation:
1. Department of Transport Engineering and Technology, National Institute of Transport, Dar es Salaam, Tanzania
Abstract
Exhaust gas emission is a by-product of air and fuel combustion in vehicle engines. It is a crucial contributing factor to air and environmental pollution that authorities emphasize controlling to mitigate the health and environmental hazards to communities. This was an experimental investigation to ascertain the emission status of used vehicles used for transport in Tanzania, some on the verge of surpassing their allowable emission levels. An experimental research design was opted for in this study and data were collected experimentally and through observations. Gas analyzers and emission detectors were used to obtain emission data for the study, where cluster sampling was preferred and 403 gasoline and diesel-powered vehicles were investigated for general inspection. The study found that engine size, year of manufacture, and kilometers of travel affected vehicle emission levels. The results were analyzed and compared with the allowable emission values in the Tanzanian standards.
Publisher
National Institute of Transport
Reference18 articles.
1. Adeyanju, A., Essays, K. M.-S.-A. J. S. I. R., & 2017, undefined. (2003). Effects of vehicular emission on environmental pollution in Lagos. Researchgate.Net, 64(October), 191–200. https://www.rese archgate.net/profile/Anthony-A-Adeyanju/publication/320736 561_Effects_of_Vehicular_Emission_on_Environmental_Pollution_in_Lagos/links/59f8a2e1aca272607e2f5a7d/Effects-of-Vehicular-Emission-on-Environmental-Pollution-in-Lagos.pdf
2. Ayetor, G. K., Mbonigaba, I., Ampofo, J., & Sunnu, A. (2021). Investigating the state of road vehicle emissions in Africa: A case study of Ghana and Rwanda. Transportation Research Interdisciplinary Perspectives, 11 (June), 100409. https://doi.org/10. 1016/j.trip.2021.100409
3. Chen, Z., Li, B., & Jia, S. (2022). Dynamic evaluation of environmental-economic performance of vehicle emission reduction policy from the perspective of the loss-aversion effect. Sustainable Cities and Society, 85, 104080. https://doi.org/https://doi.org/10.1016/j.scs.2022.104080
4. Currie, J., & Neidell, M. (2005). Air pollution and infant health: what can we learn from California's recent experience?. The Quarterly Journal of Economics, 120(3), 1003-1030.
5. Du, J., Qiao, F., & Yu, L. (2019). Temporal characteristics and forecasting of PM2.5 concentration based on historical data in Houston, USA. Resources, Conservation and Recycling, 147(April), 145–156. https://doi.org/10. 1016/j.resconrec.2019.04.024