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Time Series Analysis of Air Quality Trends in Urban Nigeria: A Case Study of Lagos

Air quality significantly influences public health, economic output, and the quality of life of urban residents. This study explores long-term air quality trends in Lagos, Nigeria, focusing on primary air pollutants such as particulate matter (PM2.5), nitrogen dioxide (NO₂), and Carbon monoxide (CO). Air quality data gathered at government monitoring stations from 2010 to 2020 were investigated using Seasonal Decomposition of Time Series (STL) and ARIMA (Auto Regressive Integrated Moving Average) models to extract information and predict future trend prospects. The findings indicate significan…