Open AccessAmbient Air Pollutions along a Major South-Western Nigerian Road
Author(s) -
Gbadebo Omoniyi Adeniyi,
Olusegun Ismail Lawal,
Samuel Okemute Egwenu,
Jacob Ademola Sonibare,
F.A. Akeredolu
Publication year - 2021
Publication title -
european journal of environment and earth sciences
Language(s) - English
Resource type - Journals
ISSN - 2684-446X
DOI - 10.24018/ejgeo.2021.2.3.136
Subject(s) - dry season , wet season , environmental science , air quality index , sulfur dioxide , pollutant , air pollution , nox , air pollutants , winter season , environmental chemistry , pollution , zoology , chemistry , meteorology , geography , ecology , biology , climatology , combustion , geology , inorganic chemistry , organic chemistry
This study investigated the air pollutants in the ambient air of a typical intercity highway in Nigeria. This was to assess the effect of vehicular emission on air quality along the highway. The results showed that NOX concentrations ranged from 9.9±3.2 to 33.8±3.3 µg/m3 during the wet season and 19.0±1.2 to 35.4±2.3 µg/m3 during the dry season. Sulfur dioxide measured along this highway ranged from 49.7±38.1 to 219±18.1 µg/m3 during the wet season while dry season concentration ranged from 89.1±20.9 to 225.4±57.9 µg/m3. The TSP during the wet season ranged from 54.4±25.6 to 126.8±25.6 µg/m3. These values were below the limits of 250 mg/m3 set by FMEnv., and 150-230 mg/m3 by WHO. However, the TSP measured during the dry season ranged from 85.9±44.6 to 277.8±213.5 µg/m3. The average correlations between NOX, SO2, and TSP measured during wet and dry seasons and the traffic density were 0.7, 0.6 and 0.7, respectively. Air pollution along the Nigerian highway is highly linked to vehicular activities.