Air Quality Trends and Pollution Analysis in Nigerian Cities Using Time Series Methods
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Date
2024
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International Journal of Advanced Statistics and Probability
Abstract
Air pollution is a significant environmental and public health issue in rapidly urbanizing cities, particularly in developing countries like
Nigeria. This study analyzes air quality trends in five major Nigerian cities Abuja, Lagos, Kano, Port Harcourt, and Enugu using satellitebased remote sensing data from January 2021 to December 2023. Key pollutants, including PM2.5, PM10, CO, NO2, SO2, and O3, were
analyzed using time series models (ARIMA, SARIMA), seasonal decomposition (STL), and correlation analysis. The results reveal that
Lagos and Kano experience the highest pollution levels, particularly during the Harmattan season, when Saharan dust exacerbates particulate
matter. Abuja also sees significant pollution spikes, while Port Harcourt and Enugu show moderate pollution driven by industrial emissions
and traffic. The study underscores the need for better air quality monitoring, seasonal interventions, and policies to reduce pollution,
particularly during Harmattan