Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria
An assessment of the ambient air quality in selected road intersections in Owerri Urban, Southeastern Nigeria was carried out. Random sampling of 5 air pollutant species: NO2, CO, SO2, and PM 2.5 and PM 10, from 4 major points coded SP1 to SP4 were carried out daily, morning, afternoon and evening s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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University of Bologna
2023-04-01
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| Series: | EQA |
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| Online Access: | https://eqa.unibo.it/article/view/16423 |
| _version_ | 1797837845905276928 |
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| author | Enos Ihediohamma Emereibeole Leonard Udochi Mgbeahuruike Chijioke Ndukwe Uyo Rapuruchukwu Nobert Unegbu Friday Anegbode Edo |
| author_facet | Enos Ihediohamma Emereibeole Leonard Udochi Mgbeahuruike Chijioke Ndukwe Uyo Rapuruchukwu Nobert Unegbu Friday Anegbode Edo |
| author_sort | Enos Ihediohamma Emereibeole |
| collection | DOAJ |
| description | An assessment of the ambient air quality in selected road intersections in Owerri Urban, Southeastern Nigeria was carried out. Random sampling of 5 air pollutant species: NO2, CO, SO2, and PM 2.5 and PM 10, from 4 major points coded SP1 to SP4 were carried out daily, morning, afternoon and evening sections for 14 days in the dry season. The levels of each air pollutant species were determined in-situ using standard sampling devices. The coordinates of the sampled locations were recorded using GPS equipment. The results obtained revealed elevated levels of pollutants in all the selected intersections. NO2 ranged between 0.055-0.089 ppm, CO ranged between 0.70-12.70 ppm, SO2 ranged between 0.47-0.86 ppm, PM 2.5 ranged between 0.008-0.027 ppm whereas PM 10 ranged between 0.019 - 0.067 ppm in all the locations. SO2 level at SP1 (0.47±0.15), SP2 (0.86±0.21), SP3 (0.71±0.06), and SP4 (0.74±0.13) were found to be above the National Ambient Air Quality Standard (NAAQS) and Federal Ministry of Environment (FMEnv) limits. PM (2.5 & 10) was concentrated in SP4 whereas elevated levels of CO and SO 2 were observed at SP3 and SP2. SP3 was observed to have elevated levels of NO2. Changes could be attributed to high density of vehicles observed during peak hours and the presence of building clusters. The selected road intersections may not be safe due to cumulative impacts to various socio-economic and health effects triggered by prolonged exposures. Greening approach towards low-carbon cities and urban sustainability becomes essential. |
| first_indexed | 2024-04-09T15:31:14Z |
| format | Article |
| id | doaj.art-71bff9c45f094b9091d8161d20608918 |
| institution | Directory Open Access Journal |
| issn | 2039-9898 2281-4485 |
| language | English |
| last_indexed | 2024-04-09T15:31:14Z |
| publishDate | 2023-04-01 |
| publisher | University of Bologna |
| record_format | Article |
| series | EQA |
| spelling | doaj.art-71bff9c45f094b9091d8161d206089182023-04-28T08:14:28ZengUniversity of BolognaEQA2039-98982281-44852023-04-015411010.6092/issn.2281-4485/1642314777Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, NigeriaEnos Ihediohamma Emereibeole0Leonard Udochi Mgbeahuruike1Chijioke Ndukwe Uyo2Rapuruchukwu Nobert Unegbu3Friday Anegbode Edo4Department of Environmental Management, Federal University of Technology, OwerriDepartment of Environmental Management, Federal University of Technology, OwerriDepartment of Environmental Management, Federal University of Technology, OwerriDepartment of Environmental Management, Federal University of Technology, OwerriDepartment of Environmental Management, Federal University of Technology, OwerriAn assessment of the ambient air quality in selected road intersections in Owerri Urban, Southeastern Nigeria was carried out. Random sampling of 5 air pollutant species: NO2, CO, SO2, and PM 2.5 and PM 10, from 4 major points coded SP1 to SP4 were carried out daily, morning, afternoon and evening sections for 14 days in the dry season. The levels of each air pollutant species were determined in-situ using standard sampling devices. The coordinates of the sampled locations were recorded using GPS equipment. The results obtained revealed elevated levels of pollutants in all the selected intersections. NO2 ranged between 0.055-0.089 ppm, CO ranged between 0.70-12.70 ppm, SO2 ranged between 0.47-0.86 ppm, PM 2.5 ranged between 0.008-0.027 ppm whereas PM 10 ranged between 0.019 - 0.067 ppm in all the locations. SO2 level at SP1 (0.47±0.15), SP2 (0.86±0.21), SP3 (0.71±0.06), and SP4 (0.74±0.13) were found to be above the National Ambient Air Quality Standard (NAAQS) and Federal Ministry of Environment (FMEnv) limits. PM (2.5 & 10) was concentrated in SP4 whereas elevated levels of CO and SO 2 were observed at SP3 and SP2. SP3 was observed to have elevated levels of NO2. Changes could be attributed to high density of vehicles observed during peak hours and the presence of building clusters. The selected road intersections may not be safe due to cumulative impacts to various socio-economic and health effects triggered by prolonged exposures. Greening approach towards low-carbon cities and urban sustainability becomes essential.https://eqa.unibo.it/article/view/16423air qualityroad intersectionowerri urbansoutheastern nigeria |
| spellingShingle | Enos Ihediohamma Emereibeole Leonard Udochi Mgbeahuruike Chijioke Ndukwe Uyo Rapuruchukwu Nobert Unegbu Friday Anegbode Edo Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria EQA air quality road intersection owerri urban southeastern nigeria |
| title | Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria |
| title_full | Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria |
| title_fullStr | Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria |
| title_full_unstemmed | Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria |
| title_short | Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria |
| title_sort | traffic air pollution and urban sustainability an assessment of strategic road intersections in owerri urban nigeria |
| topic | air quality road intersection owerri urban southeastern nigeria |
| url | https://eqa.unibo.it/article/view/16423 |
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