74f42241c6f3449c48a0f8dc9c64ba8d pmc_10252725.pdf beff191afae5a3d9084d0ba01bef4c1fdfcd2564 pmc_10252725.pdf 4f979c1b9d9042ab50808020397e08f37e345939829f4b203e4115b336235f72 pmc_10252725.pdf Title: Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws Subject: Smokefree laws are intended to protect against second-hand smoke (SHS) in outdoor areas. We examined if exposure to PM2.5 particles in outdoor smoking areas changed breathing rates in 60 patients with asthma (n = 30) or with COPD (n = 30), in an open, non-randomised, interventional study model in Czechia, Ireland and Spain. The patients wore a PM2.5 particle monitor (AirSpeck) and a breath monitor (RESpeck) for 24 h to determine changes in breathing rates (Br) at rest and during a visit to an outside smoking area. Spirometry and breath CO were measured before and the day after visiting an outdoor smoking area. The PM2.5 levels at the 60 venues were highly variable, ranging from 2000 g/m3 (in 4 premises) to 10 g/m3 (in 3 premises, which had only a single wall in the structure). At 39 venues, the mean PM 2.5 levels were 25 g/m3. The breathing rate changed significantly in 57 of the 60 patients, resulting in an increase in some patients and a decrease in others. Comprehensive smokefree laws were ineffective in protecting asthma and COPD patients from exposure to high levels of SHS in outside areas of pubs and terraces, which should be avoided by these patients. These findings also support the extension of smokefree laws to outside areas. Keywords: smokefree laws; COPD; asthma; particle exposure; sensors; outside areas Author: Sheila Keogan, Tamara Alonso, Salome Sunday, Joan Hanafin, Olena Tigova, Esteve Fernandez, Maria Jose Lopez, Silvano Gallus, Sean Semple, Anna Tzortzi, Roberto Boffi, Giuseppe Gorini, Angel Lopez-Nicolas, D. K. Arvind, Cornel Radu-Loghin, Joan B. 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Info: Title: Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws Author: Sheila Keogan, Tamara Alonso, Salome Sunday, Joan Hanafin, Olena Tigova, Esteve Fernandez, Maria Jose Lopez, Silvano Gallus, Sean Semple, Anna Tzortzi, Roberto Boffi, Giuseppe Gorini, Angel Lopez-Nicolas, D. K. Arvind, Cornel Radu-Loghin, Joan B. Soriano and Luke Clancy Subject: Smokefree laws are intended to protect against second-hand smoke (SHS) in outdoor areas. We examined if exposure to PM2.5 particles in outdoor smoking areas changed breathing rates in 60 patients with asthma (n = 30) or with COPD (n = 30), in an open, non-randomised, interventional study model in Czechia, Ireland and Spain. The patients wore a PM2.5 particle monitor (AirSpeck) and a breath monitor (RESpeck) for 24 h to determine changes in breathing rates (Br) at rest and during a visit to an outside smoking area. Spirometry and breath CO were measured before and the day after visiting an outdoor smoking area. The PM2.5 levels at the 60 venues were highly variable, ranging from 2000 g/m3 (in 4 premises) to 10 g/m3 (in 3 premises, which had only a single wall in the structure). At 39 venues, the mean PM 2.5 levels were 25 g/m3. The breathing rate changed significantly in 57 of the 60 patients, resulting in an increase in some patients and a decrease in others. Comprehensive smokefree laws were ineffective in protecting asthma and COPD patients from exposure to high levels of SHS in outside areas of pubs and terraces, which should be avoided by these patients. These findings also support the extension of smokefree laws to outside areas. 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