Spatiotemporal Assessment of PM2.5 in Senior High Schools in Kumasi, Ghana using Low-Cost Sensors

Victoria Owusu Tawiah; Thompson Annor; Edmund I. Yamba; James Nimo; Cosmos Senyo Wemegah; Collins Gameli Hodoli; Desmond Osei-Tutu; Daniel Amponsah; Allison Felix Hughes; Daniel M. Westervelt

doi:10.1007/s44408-025-00066-2

November 19, 2025Aerosol and Air Quality ResearchOpen Access

Spatiotemporal Assessment of PM2.5 in Senior High Schools in Kumasi, Ghana using Low-Cost Sensors

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Key Points

The study aimed to evaluate PM2.5 pollution levels across senior high schools in Kumasi, Ghana.
Utilized low-cost Airnote sensors for PM2.5 assessment.
Collected meteorological data on wind speed and direction from ERA5-Land Reanalysis.
Conducted assessment across six senior high schools over the course of 2022 to 2023.
Analyzed spatial and seasonal variability in pollution levels.
Annual median PM2.5 concentration was 17.18 µg/m³, exceeding the WHO guideline of 5 µg/m³.
Pollution levels were significantly higher during weekdays and Saturdays compared to Sundays.
Diurnal patterns showed peaks aligned with morning and evening activities, linked to traffic and biomass emissions.

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Implication

This investigation measured annual PM2.5 pollution during dry and wet seasons in senior high schools, revealing high levels driven by biomass burning.

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Cite This Study

Tawiah et al. (2025) studied this question.

synapsesocial.com/papers/6924f091c0ce034ddc35098c https://doi.org/10.1007/s44408-025-00066-2

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Spatiotemporal Assessment of PM2.5 in Senior High Schools in Kumasi, Ghana using Low-Cost Sensors

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Spatiotemporal Assessment of PM2.5 in Senior High Schools in Kumasi, Ghana using Low-Cost Sensors

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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