RT info:eu-repo/semantics/article T1 Indoor PM from residential coal combustion: levels, chemical composition, and toxicity A1 Vicente, Estela Alexandra Domingos A1 Calvo Gordaliza, Ana Isabel A1 Sainnokhoi, Tsend Ayush A1 Kováts, Nora A1 Sánchez de la Campa Verdona, Ana María A1 Rosa Díaz, Jesús de la A1 Oduber Pérez, Fernanda Isabel A1 Nunes, Teresa Filomena Vieira AD 1958- A1 Fraile Laiz, Roberto A1 Tomé, Mário A1 Alves, Célia A2 Fisica Aplicada K1 Física K1 Química K1 Toxicología K1 Bioluminescence assay K1 Coal combustion K1 Carcinogenic risk K1 Indoor air quality K1 Particulate matter K1 2210 Química Física K1 3214 Toxicología AB [EN] Indoor air quality is crucial for human health due to the significant time people spend at home, and it is mainly affected by internal sources such as solid fuel combustion for heating. This study investigated the indoor air quality and health implications associated with residential coal burning covering gaseous pollutants (CO, CO2 and total volatile organic compounds), particulate matter, and toxicity. The PM10 chemical composition was obtained by ICP-MS/OES (elements), ion chromatography (water-soluble ions) and thermal-optical analysis (organic and elemental carbon). During coal combustion, PM10 levels were higher (up to 8.8 times) than background levels and the indoor-to-outdoor ratios were, on average, greater than unity, confirming the existence of a significant indoor source. The chemical characterisation of PM10 revealed increased concentrations of organic carbon and elemental carbon during coal combustion as well as arsenic, cadmium and lead. Carcinogenic risks associated with exposure to arsenic exceeded safety thresholds. Indoor air quality fluctuated during the study, with varying toxicity levels assessed using the Aliivibrio fischeri bioluminescence inhibition assay. These findings underscore the importance of mitigating indoor air pollution associated with coal burning and highlight the potential health risks from long-term exposure. Effective interventions are needed to improve indoor air quality and reduce health risks in coal-burning households PB Elsevier SN 0048-9697 LK https://hdl.handle.net/10612/18380 UL https://hdl.handle.net/10612/18380 NO Vicente, E. D., Calvo, A. I., Sainnokhoi, T.-A., Kováts, N., de la Campa, A. S., de la Rosa, J., Oduber, F., Nunes, T., Fraile, R., Tomé, M., and Alves, C. A. (2024). Indoor PM from residential coal combustion: levels, chemical composition and toxicity. The Science of the Total Environment., 918, Article e170598. https://doi.org/10.1016/j.scitotenv.2024.170598 DS BULERIA. Repositorio Institucional de la Universidad de León RD 18-may-2024