Monitoring Gaseous and Particulate Air Pollutants near Major Highways in Abeokuta, Nigeria

Journal of Applied Sciences and Environmental Management

AJIBOLA, F. O.¹  ADEDEJI, O. H.¹  OLAYINKA, O. O.¹ 

关键词: Gaseous Pollutants;    Air Quality;    Abeokuta Metropolis;    Transportation;    healths;   

DOI  :  

学科分类：环境科学（综合）

来源: University of Port Harcourt * Department of Pure and Industrial Chemistry

【 摘 要 】

High traffic volume and traffic congestion on Nigerian roads have led toincrease in the concentration of pollutants in the air t posing health risks for humanpopulation. This study investigates air quality due to vehicular emissions in some busy roadsin Abeokuta metropolis, Nigeria. Air pollutants such as CO, CO2, NO, NO>2, SO2, H2S) andsuspended particulate matter (SPM) were determined using an active sampler for both dry andwet seasons. The results shows concentration of CO in the urban air ranging from 1.58 – 8.50ppm during the dry season and 1.22 – 25.75 ppm for wet season, while CO2 ranges from11800 – 26900 ppm for dry season and 9200 – 26700 ppm in wet season. NO ranged from0.04 – 2.60 ppm for dry season and 0.02 – 0.66 ppm for wet season while NO2 ranged from0.09 – 3.40 ppm in dry season and 0.04 – 1.12 ppm in the wet season. SO2 ranged between0.06 – 2.18 ppm in dry season compared to 0.05 – 0.82 ppm in wet season. SPM variesbetween 51.00 – 642.25 ppm in dry season and 29.50 - 170.75 ppm in wet season. Highconcentrations of CO2, NO, NO2, SO2, H2S and SPM were obtained during the dry seasoncompared to the wet season and can be attributed to vehicular emissions due high trafficvolume on the roads. The concentrations of pollutants examined were above the World HealthOrganization (WHO) limits at all the sites.

【 授权许可】

Unknown