Quantifying Air Pollution of Road Transport In Addis Ababa City
| dc.contributor.advisor | Getu, Segni (PhD) | |
| dc.contributor.author | Lencho, Kebede | |
| dc.date.accessioned | 2020-02-10T07:14:05Z | |
| dc.date.accessioned | 2023-11-11T12:53:34Z | |
| dc.date.available | 2020-02-10T07:14:05Z | |
| dc.date.available | 2023-11-11T12:53:34Z | |
| dc.date.issued | 2019-12-09 | |
| dc.description.abstract | Transport is one of the key necessities for the development of a country. In the contrary, transport sectors contribute in air pollution by exhausting harmful gaseous. Quantifying and determining the road transport emission of vehicles is an essential step in pollution control and management. Therefore, the aim of this paper is to assess emission levels and identify possible alternatives of environmentally friendly public transports vehicles in Addis Ababa city. The data was collected with electronic instruments; Smoke Opacity Meter and FGA 4000XDS Gas Analyzer on the site through tail pipe. It employs a descriptive research with quantitative approaches considering vehicle model year, category, model names and kilometer driven. These data were analyzed through quantitative (descriptive and statistical analysis) methods. From the total of 358 tested diesel fueled vehicles, 243 (67.9%) vehicles failed the standard cut points with smoke opacity values greater than or equal to 41%. Of these vehicles 45 (19%) registered 100% smoke opacity value. Only 115 (32.1%) vehicles passed the standard limit. The results of this study show that (Taxi vehicles) is the dominant air pollutant with an average emission of 86.36% smoke opacity which is above the U.S. EPA Standard and only 7.4% passed the standard guidelines. Vehicles in this category were those with the oldest model year of 19601999 with an average age of 33 years. From 62 tested gasoline vehicles 29(46.8%), 21(33.87%) scored between 2000-3903ppm, 211541ppm HC respectively and 57(92%) failed Californian BAR-90 standards. Again, 53(85.5%), 9(14.5%) recorded between 3.14-5.87% and 0.03-0.49% CO respectively and 53(85.5%) failed Californian BAR-90 standards. This study found that, Travelling by old and new Anbessa bus can decrease air pollution by 32 and 176 as much as using minibus taxis respectively. Also, travelling by Sheger Bus can reduce air pollution by 34 times as much as minibus taxi. Overall, the study found that Taxi vehicles both diesels and gasoline fueled were termed as supper emitter together with Higer Bus. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/20583 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Quantifying | en_US |
| dc.subject | Road transportation | en_US |
| dc.subject | FGA 4000XDS four and Five Gas Exhaust Analyzer | en_US |
| dc.subject | Smoke Opacity | en_US |
| dc.subject | Air pollution | en_US |
| dc.title | Quantifying Air Pollution of Road Transport In Addis Ababa City | en_US |
| dc.type | Thesis | en_US |