Spatio-temporal study of criteria pollutants in Nigerian city
| dc.contributor.author | Anyika, L. C. | |
| dc.contributor.author | Alisa, C. O. | |
| dc.contributor.author | Nkwoada, A. U. | |
| dc.contributor.author | Opara, A. I. | |
| dc.contributor.author | Ejike, E. N. | |
| dc.date.accessioned | 2025-05-06T13:15:24Z | |
| dc.date.available | 2025-05-06T13:15:24Z | |
| dc.date.issued | 2020-06-29 | |
| dc.description | An original research article with figures and tables | |
| dc.description.abstract | Aims: An investigation of characteristic long term air pollutants known for temporal and spatial behaviors was conducted due to increased pollution scenarios in Nigerian cities as a result of deprived environmental enforcement of statutory obligations. Study Design: One of the worlds’ most polluted cities (Onitsha lower basin) in Nigeria was selected for spatio-temporal study of three criteria pollutants combined with GIS and MATLAB alongside associated meteorological conditions during harmattan. Methodology: 72-hourly analyses of the nine different locations having 4 sampling sites and 500 meters apart were done from December to February which generated over 19, 440 experimental data per quarter of each annual study. Results: Upper Iweka/Nitel area recorded the highest concentration of SO2 pollutant at (94.2 µg/m3) due to longer residence times and low wind mixing height. Borromeo hospital showed the least active NO2 region but converges at points 1 due to North-east wind dissimilar to sampling points 1 having the lowest PM10 distribution. Measured temperature parameter correlates inversely with relative humidity and precipitation. The GIS spatial representation corresponded to temporal variability of gaseous and particulate pollutants. Conclusion: All sampled areas had AQI above 50; hence the study identified SO2, NO2, and PM10 as Primary pollutants of Onitsha lower basin. | |
| dc.identifier.citation | Anyika, L. C., Alisa, C. O., Nkwoada, A. U., Opara, A. I. & Ejike, E. N. (2020). Spatio-temporal study of criteria pollutants in Nigerian city. Asian Journal of Applied Chemistry Research, 6(3), 1-13 | |
| dc.identifier.doi | 10.9734/AJACR/2020/v6i330160 | |
| dc.identifier.issn | 2582-0273 | |
| dc.identifier.uri | https://repository.futo.edu.ng/handle/20.500.14562/1838 | |
| dc.language.iso | en | |
| dc.publisher | U. P. | |
| dc.rights | Attribution-NonCommercial-ShareAlike 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.subject | Air quality | |
| dc.subject | GIS | |
| dc.subject | harmattan | |
| dc.subject | MATLAB | |
| dc.subject | seasonal variations | |
| dc.subject | air pollutants | |
| dc.subject | meteorology | |
| dc.subject | Department of Chemistry | |
| dc.title | Spatio-temporal study of criteria pollutants in Nigerian city | |
| dc.type | Article |