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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/190280
Exposure to secondhand aerosol from electronic cigarettes at homes: A real-life study in four European countries
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Electronic cigarette (e-cigarette) use emits potentially hazardous compounds and deteriorates indoor air quality. Home is a place where e-cigarettes may frequently be used amid its increasing prohibition in public places. This study assessed the real-life scenario of bystanders' exposure to secondhand e-cigarette aerosol (SHA) at home. A one-week observational study was conducted within the TackSHS project in four countries (Greece, Italy, Spain, and the United Kingdom) in 2019 including: 1) homes of e-cigarette users living together with a non-user/non-smoker; and 2) control homes with no smokers nor e-cigarette users. Indoor airborne nicotine, PM2.5, and PM1.0 concentrations were measured as environmental markers of SHA. Biomarkers, including nicotine and its metabolites, tobacco -specific nitrosamines, propanediol, glycerol, and metals were measured in participants' saliva and urine samples. E-cigarette use characteristics, such as e-cigarette refill liquid's nicotine concentration, e-cigarette type, place of e-cigarette use at home, and frequency of ventilation, were also collected. A total of 29 e-cigarette users' homes and 21 control homes were included. The results showed that the seven-day concentrations of airborne nicotine were quantifiable in 21 (72.4 %) out of 29 e-cigarette users' homes; overall, they were quite low (geometric mean: 0.01 mu g/m3; 95 % CI: 0.01-0.02 mu g/m(3)) and were all below the limit of quantification in control homes. Seven-day concentrations of PM2.5 and PM1.0 in e-cigarette and control homes were similar. Airborne nicotine and PM concentrations did not differ according to different e-cigarette use characteristics. Non-users residing with e-cigarette users had low but significantly higher levels of cotinine, 3 '-OH-cotinine and 1,2-propanediol in saliva, and cobalt in urine than non-users living in control homes. In conclusion, e-cigarette use at home created bystanders' exposure to SHA regardless of the e-cigarette use characteristics. Further studies are warranted to assess the implications of SHA exposure for smoke-free policy.
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AMALIA, Beladenta, FU BALBOA, Marcela, TIGOVA, Olena, BALLBÈ I GIBERNAU, Montse, PANIELLO CASTILLO, Blanca, CASTELLANO, Yolanda, VYZIKIDOU, Vergina k., O'DONNELL, Rachel, DOBSON, Ruaraidh, LUGO, Alessandra, VERONESE, Chiara, PÉREZ ORTUÑO, Raúl, PASCUAL, José antonio, CORTÉS, Núria, GIL, Fernando, OLMEDO, Pablo, SORIANO, Joan b., BOFFI, Roberto, RUPRECHT, Ario, ANCOCHEA BERMÚDEZ, Julio, LÓPEZ, Maria j., GALLUS, Silvano, VARDAVAS, Constantine, SEMPLE, Sean, FERNÁNDEZ MUÑOZ, Esteve. Exposure to secondhand aerosol from electronic cigarettes at homes: A real-life study in four European countries. _Science of The Total Environment_. 2022. Vol. 854. [consulta: 22 de gener de 2026]. ISSN: 1879-1026. [Disponible a: https://hdl.handle.net/2445/190280]