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August 3, 2026Discover AtmosphereOpen Access

Assessing the spatiotemporal characteristics of urban air pollution in Ado-Ekiti and its environs, southwest Nigeria

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Authors

OOOmotoso OluwatuyiFAFrancis Omowonuola AkinluyiAAAdeyeye Joseph Adeleke

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Overview

Randomized trial assesses air pollution levels in Ado-Ekiti, indicating significant challenges for public health.

Key Points

  • The study aims to assess the spatiotemporal distribution of urban air pollution in Ado-Ekiti, Nigeria, over a five-year period.
  • Analyzed air pollutants (CO, HCHO, PM2.5, PM10) from ground measurements and satellite data (Sentinel-5P, MODIS) from 2019 to 2024.
  • Derived meteorological data (rainfall, wind speed/direction) using the Weather Research and Forecasting model.
  • Conducted Mann-Kendall trend analysis to evaluate pollutant trends over time.
  • Particulate matter was the dominant pollutant with annual means of 59.37–65.29 µg/m³ for PM2.5 and 89.35–99.51 µg/m³ for PM10, exceeding WHO guidelines.
  • Peak PM concentrations were > 100 µg/m³ for PM2.5 and > 200 µg/m³ for PM10 during the Harmattan season, primarily due to Saharan dust.
  • Significant trends were found for increasing levels of HCHO, PM2.5, and PM10 over time; CO showed no significant trend.

Cite This Study

Oluwatuyi et al. (2026) studied this question.

synapsesocial.com/papers/6a70400975942ff7265e4a96https://doi.org/10.1007/s44292-026-00089-3
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