Emerging low‑cost sensing technologies provide the city with a smart solution for real‑time air quality monitoring and management. This enables the reduction of health risks and the improvement of citizens’ quality of life as they are engaged to mitigate air pollution, especially in indoor environments where they spend most of the time and the levels of air pollution often surpass those of outdoors.

Children are often physically active in school, increasing their ventilation rate and consequently the inhaled dose of pollutant concentrations, which are known to negatively affect their health, particularly the respiratory system, as they are more vulnerable than adults. Thus, 2SMART aims, with this activity, to develop a smart, low‑cost device to reduce children’s health risks from indoor air pollution exposure in schools. For this, scientifically calibrated and validated sensors capable of interacting with the end‑users, especially children, will be used. This device will also suggest adequate mitigation measures, thus enabling schools to be self‑sufficient in managing indoor air quality. This project will also contribute to the environmental education of the scholar communities and its science involvement since infancy.

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Selected Results

On‑field performance test and calibration of two commercially available low‑cost sensors devices for CO2 monitoring

Chojer, H.; Branco, P. T. B. S.; Martins, F. G.; Sousa, S. I. V. International Journal of Environmental Impacts, 5 (1), 7, 2022, doi: 10.2495/EI‑V5‑N1‑15‑22

Application of the low‑cost sensing technology for indoor air quality monitoring: A review

Sá, J. P.; Alvim‑Ferraz, M. C. M.; Martins, F. G.; Sousa, S. I. V. Environmental Technology & Innovation, 28, 102551, 2022, doi: 10.1016/j.eti.2022.102551

Can data reliability of low‑cost sensor devices for indoor air particulate matter monitoring be improved? – An approach using machine learning

Chojer, H., Branco, P. T. B. S., Martins, F.G., Alvim‑Ferraz, M. C. M., Sousa, S. I. V. Atmospheric Environment, 286, 2022, doi: 10.1016/j.atmosenv.2022.119251
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