ASSESSMENT OF VEHICULAR EMISSIONS ON AIR QUALITY AND PROXIMATE COMPOSITION OF AMARANTHUS HYBRIDUS AND MANGIFERA INDICA IN ZARIA, NIGERIA

Simple item page
dc.contributor.authorOKON, Idongesit Edem
dc.date.accessioned2017-01-30T13:37:36Z
dc.date.available2017-01-30T13:37:36Z
dc.date.issued2015-09
dc.descriptionA DISSERTATION SUBMITTED TO THE SCHOOL OF POST GRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTERS DEGREE IN ANALYTICAL CHEMISTRY DEPARTMENT OF CHEMISTRY, FACULTY OF SCIENCE, AHMADU DELLO UNIVERSITY, ZARIAen_US
dc.description.abstractPollutants from vehicular emissions can cause negative impact on air quality and the nutrients content of vegetables planted by the road side. This work assessed the impact of vehicular emissions on the proximate composition of roadside Amaranthushybridus and roadside Mangifera indica and the air quality of Zaria. The air pollutants analysed were particulate matter (PM), nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbons (HCs). These pollutants were measured during morning peak, evening peak and off-peak traffic periods. Traffic count was carried out to determine the traffic density at all experimental sites (Rex Junction, PZ Junction, MTD Junction and Kwangila Fly-Over). All the experimental sites were at traffic hot-sports in Zaria. The proximate composition determined were moisture content, fat content, ash content, crude protein content, crude fibre content and carbohydrate content. All the pollutants from vehicular emissions except particulate matter showed high correlation with traffic density at all the experimental sites. The concentrations of all the pollutants at all the experimental sites were higher than the concentrations at the control site. There were also higher concentrations during traffic peak periods than during off-peak. At traffic peak periods, the highest average concentrations of PM (213.00 µg/m2) and CO2 (348.00 ppm) in the air of Zaria were below the Nigerian Ambient Air Quality Standard (NAAQS) limit of 250 µg/m2 and 600 ppm for PM and CO2 respectively. NO2, SO2 and CO average concentrations at traffic peak periods were within the NAAQS limit range of 0.04 – 0.06 ppm, 0.01 – 0.1 and 10 – 20 ppm for NO2, SO2 and CO respectively. The average concentration range of hydrocarbons (0.057 – 0.070 ppm) at traffic peak periods were higher than the NAAQS limit of 0.05 ppm but was below the 0.05 ppm standard limit at traffic offpeak period. This shows that all the air pollutants from vehicular emissions at the experimental sites in Zaria were either below or within the NAAQS limit except for HCs. The mean proximate composition determined for Amarathushybridus cultivated at each of the experimental sites was compared to the mean proximate composition of Amarathushybridus cultivated at the control site and there was no significant difference (P = 0.05) between the two, showing that vehicular emission did not have negative impact on the proximate composition of the roadside Amarathushybridus. The proximate compositions of the roadside Mangifera indica were higher than the ones obtained at the Control except for the ash content that was significantly higher (P = 0.05). For the Amarathushybridus, moisture content, fat content, and crude protein content showed high negative correlation with age, crude fibre content and carbohydrate content showed high positive correlation with age while ash content did not correlate with age.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8544
dc.language.isoenen_US
dc.subjectASSESSMENT,en_US
dc.subjectVEHICULAR EMISSIONS,en_US
dc.subjectAIR QUALITY,en_US
dc.subjectPROXIMATE COMPOSITION,en_US
dc.subjectAMARANTHUS HYBRIDUS,en_US
dc.subjectMANGIFERA INDICA,en_US
dc.subjectZARIA,en_US
dc.subjectNIGERIAen_US
dc.titleASSESSMENT OF VEHICULAR EMISSIONS ON AIR QUALITY AND PROXIMATE COMPOSITION OF AMARANTHUS HYBRIDUS AND MANGIFERA INDICA IN ZARIA, NIGERIAen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
ASSESSMENT OF VEHICULAR EMISSIONS ON AIR QUALITY AND PROXIMATE COMPOSITION OF AMARANTHUS HYBRIDUS AND MANGIFERA INDICA IN ZARIA, NIGERIA.pdf
Size:
1.52 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
SCIENCE