RT Journal Article T1 Lung Function and Symptoms of Exposure to the Volcanic Eruption in the Canary Islands: First Follow-Up of the ASHES Study A1 Candal Pedreira, Cristina A1 Ruano Raviña, Alberto K1 Volcanic eruption K1 Respiratory health K1 Respiratory symptoms K1 Lung function K1 Pollutants K1 Exposure AB IntroductionExposure to gases and particulate matter released during volcanic eruptions can prove harmful to population health. This paper reports the preliminary results of the ASHES study, aimed at ascertaining the respiratory health effects of the 2021 volcanic eruption in La Palma Island (Spain) on the adult population without previous respiratory disease.MethodsAmbispective cohort study on the healthy adult population. Three exposure groups were considered: Group 1, high exposure; Group 2, moderate exposure; and Group 3, minor or no exposure. We carried out a descriptive analysis of symptoms during and after the eruption, as well as measure lung function after the eruption (through forced spirometry and diffusing capacity of carbon monoxide).ResultsThe analysis included 474 subjects: 54 in Group 1, 335 in Group 2, and 85 in Group 3. A significant increase in most symptoms was observed for subjects in the groups exposed during the eruption. After the eruption, this increase remained for some symptoms. There seems to be a dose-response relationship, such that the higher the exposure, the higher the odds ratio. A prebronchodilator FEV1/FVC ratio < 70% was observed in 13.0% of subjects in Group 1, 8.6% of subjects in Group 2, and 7.1% of subjects in Group 3.ConclusionsThis study is the first to report a dose-response relationship between exposure to volcanic eruptions and the presence of symptoms in adults. Furthermore, there is a tendency toward obstructive impairment in individuals with higher exposure. PB Elsevier SN 0300-2896 YR 2024 FD 2024 LK http://hdl.handle.net/10347/34648 UL http://hdl.handle.net/10347/34648 LA eng NO Archivos de Bronconeumología Volume 60, Issue 8 , August 2024, Pages 475-482 NO This study is funded by the Spanish Society of Pneumology and Thoracic Surgery (Sociedad Española de Neumología y Cirugía Torácica/SEPAR). DS Minerva RD 24 abr 2026