Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria

Journal of Applied Sciences and Environmental Management

ADESUYI, ADEOLA ALEX¹  AKINOLA, MODUPE OLATUNDE¹  JOLAOSO, ANUOLUWAPO OMOSILEOLA¹  RUMIDE, TOSIN JOHN¹  NJOKU, KELECHI LONGINUS¹ 

关键词: Air;    Air quality index;    sulphur-dioxide;    pollutants;    carbon-monoxide;   

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 】

Twenty one sampling locations were assessed for carbon monoxide (CO),carbondioxide (CO2), oxygen (O2), sulphur dioxide (SO2), nitrogen dioxide (NO2), nitrogen oxide(NO), suspended particulate matter (SPM) and noise level using air pollutants measurementmethods approved by ASTM for each specific parameter. All equipments and meters were allproperly pre-calibrated before each usage for quality assurance. Findings of the study showed thatmeasured levels of noise (61.4 - 101.4 dBA), NO (0.0 - 3.0 ppm), NO2 (0.0 - 3.0 ppm), CO (1.0 –42.0 ppm) and SPM (0.14 – 4.82 ppm) in all sampling areas were quite high and above regulatorylimits however there was no significant difference except in SPM (at all the sampling points), andnoise, NO2 and NO (only in major traffic intersection). Air quality index (AQI) indicates that theambient air can be described as poor for SPM, varied from good to very poor for CO, while NOand NO2 are very good except at major traffic intersection where they were both poor and verypoor (D-E). The results suggest that strict and appropriate vehicle emission management,industrial air pollution control coupled with close burning management of wastes should beconsidered in the study area to reduce the risks associated with these pollutants.

【 授权许可】

Unknown