Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws

How to cite: Keogan, S.; Alonso, T.; Sunday, S.; Tigova, O.; Fernández, E.; López, M.J.; Gallus, S.; Semple, S.; Tzortzi, A.; Boffi, R.; Gorini, G.; Lopez-Nicholas, A.; Hanafin, J.; Radu-Loghin, C.; Soriano, J.B.; Clancy, L. Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws. Preprints 2023, 2023020294. https://doi.org/10.20944/preprints202302.0294.v1. Keogan, S.; Alonso, T.; Sunday, S.; Tigova, O.; Fernández, E.; López, M.J.; Gallus, S.; Semple, S.; Tzortzi, A.; Boffi, R.; Gorini, G.; Lopez-Nicholas, A.; Hanafin, J.; Radu-Loghin, C.; Soriano, J.B.; Clancy, L. Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws. Preprints 2023, 2023020294. https://doi.org/10.20944/preprints202302.0294.v1.

Cite as:

Keogan, S.; Alonso, T.; Sunday, S.; Tigova, O.; Fernández, E.; López, M.J.; Gallus, S.; Semple, S.; Tzortzi, A.; Boffi, R.; Gorini, G.; Lopez-Nicholas, A.; Hanafin, J.; Radu-Loghin, C.; Soriano, J.B.; Clancy, L. Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws. Preprints 2023, 2023020294. https://doi.org/10.20944/preprints202302.0294.v1. Keogan, S.; Alonso, T.; Sunday, S.; Tigova, O.; Fernández, E.; López, M.J.; Gallus, S.; Semple, S.; Tzortzi, A.; Boffi, R.; Gorini, G.; Lopez-Nicholas, A.; Hanafin, J.; Radu-Loghin, C.; Soriano, J.B.; Clancy, L. Particle Exposure Hazards of Visiting Outdoor Smoking Areas for Patients with Asthma or COPD Even in EU Countries with Comprehensive Smokefree Laws. Preprints 2023, 2023020294. https://doi.org/10.20944/preprints202302.0294.v1.

Abstract

Objective To measure, exposure to PM2.5 particles in outdoor smoking areas and changes in breathing rates in patients with asthma or chronic obstructive pulmonary disease (COPD). Setting Sixty venues in Czechia, Ireland and Spain, in an open, non-randomised, clinical trial. Participants We studied 60 patients-30 asthma patients (Female 63.3%), with a mean age (+/-standard deviation [SD]) of 47.4 (19.0 SD), and 30 COPD patients (Female 51.6%), mean age 63.5 (10.1 SD), smokers, non-smokers or ex-smokers, recruited through medical clinics. Intervention Patients wore a PM2.5 particle monitor (AirSpeck), and a breath monitor (RESpeck) for 24 hours 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. Results PM2.5 levels in the 60 venues were highly variable, in 1 premises levels of PM2.5 were sustained for at least 15 minutes at ≥ 2,000 µg/m3, in 4 premises, ≥ 500 (range 1,933-539) µg/m3, in 8 premises, ≥ 200(range 480-203) µg/m3, in 9 premises, ≥ 100 (range 170-108) µg/m3, in 8 premises, ≥ 40 (range 80.5- 40.1) µg/m3, in 9 premises, ≥ 25 µg/m3, in 10 premises, ≥ 10 µg/m3, in 8 premises, and ≤10 µg/m3 in only 3 premises, with a single wall. The overall breathing rates/minute (Br)did not change significantly but in 28 patients mean Br increased from 21.47 (1.74 SD) to 22.8 (2.29 SD), change of -1.35 (-1.80-0.91 C.I), p value 0.00 and mean in 29 patients Br decreased from 21.95(2.43 SD) to 20.38(2.79 SD), 1.57(1.03-2.12 C.I), p value 0.00. Conclusion Exposure to high levels of PM2.5, and associated alteration of patients’ breathing rates occurred in outdoor smoking areas despite national comprehensive smokefree laws. These exposure levels support the abolition of such areas. (Words 295) ClinicalTrials.gov ID: NCT03074734 Ethics: Approval Number: Ref: 15-103

Keywords

Smokefree laws; COPD; asthma; particle exposure; sensors; outside areas

Subject

MEDICINE & PHARMACOLOGY, General Medical Research

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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