Relevance and Reliability of Outdoor SO2 Monitoring in Low-Income Countries Using Low-Cost Sensors

Low-cost SO2 sensors can provide reliable air quality data in low-income countries, as demonstrated by a study comparing their performance to high-end calibration methods. Researchers found that tropical climate calibrations in Cuba matched the accuracy of European lab calibrations, validating the use of affordable sensors for monitoring in resource-limited settings like Cienfuegos. While reliability improves with higher SO2 concentrations, the findings suggest these sensors could effectively replace expensive equipment in regions where traditional monitoring is inaccessible.

González Rivero, R. A., Schalm, O., Alvarez Cruz, A., Hernández Rodríguez, E., Morales Pérez, M. C., Alejo Sánchez, D., Martinez Laguardia, A., Jacobs, W., & Hernández Santana, L. (2023). Relevance and Reliability of Outdoor SO2 Monitoring in Low-Income Countries Using Low-Cost Sensors. Atmosphere, 14(6), 912. https://doi.org/10.3390/atmos14060912