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Secondhand smoke levels in public building main entrances: outdoor and indoor PM2.5 assessment.
Tob Control. 2012 Nov; 21(6):543-8.TC

Abstract

BACKGROUND/OBJECTIVES

To describe secondhand smoke (SHS) levels in halls and main entrances (outdoors) in different buildings by measurement of PM(2.5) and airborne nicotine.

METHODS

Cross-sectional study in a sample of 47 public buildings. The authors studied SHS levels derived from PM(2.5) (micrograms per cubic metre) using TSI SidePak Personal Aerosol Monitors. The authors tested four locations within buildings: hall, main entrance (outdoor), control (indoor) and control (outdoor). The authors also measured airborne nicotine concentration (micrograms per cubic metre) in main entrances (outdoor). The authors computed medians and IQRs to describe the data. Spearman correlation coefficient (rsp) was used to explore the association between PM(2.5) concentrations simultaneously measured in halls and main entrances as well as between PM(2.5) and nicotine concentrations.

RESULTS

The authors obtained an overall median PM(2.5) concentration of hall 18.20 μg/m(3) (IQR: 10.92-23.92 μg/m(3)), main entrance (outdoor) 17.16 μg/m(3) (IQR: 10.92-24.96 μg/m(3)), control (indoor) 10.40 μg/m(3) (IQR: 6.76-15.60 μg/m(3)) and control (outdoor) 13.00 μg/m(3) (IQR: 8.32-18.72 μg/m(3)). The PM(2.5) concentration in halls was more correlated with concentration in the main entrances (outdoors) (rsp=0.518, 95% CI 0.271 to 0.701) than with the control indoor (rsp=0.316, 95% CI 0.032 to 0.553). The Spearman correlation coefficient between nicotine and PM(2.5) concentration was 0.365 (95% CI -0.009 to 0.650).

CONCLUSIONS

Indoor locations where smoking is banned are not completely free from SHS with levels similar to those obtained in the immediate entrances (outdoors) where smoking is allowed, indicating that SHS from outdoors settings drifts to adjacent indoors. These results warrant a revision of current smoke-free policies in particular outdoor settings.

Authors+Show Affiliations

Tobacco Control Unit, Cancer Prevention and Control Programme, Institut Català d'Oncologia-ICO, L'Hospitalet de Llobregat, Barcelona, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21964181

Citation

Sureda, Xisca, et al. "Secondhand Smoke Levels in Public Building Main Entrances: Outdoor and Indoor PM2.5 Assessment." Tobacco Control, vol. 21, no. 6, 2012, pp. 543-8.
Sureda X, Martínez-Sánchez JM, López MJ, et al. Secondhand smoke levels in public building main entrances: outdoor and indoor PM2.5 assessment. Tob Control. 2012;21(6):543-8.
Sureda, X., Martínez-Sánchez, J. M., López, M. J., Fu, M., Agüero, F., Saltó, E., Nebot, M., & Fernández, E. (2012). Secondhand smoke levels in public building main entrances: outdoor and indoor PM2.5 assessment. Tobacco Control, 21(6), 543-8. https://doi.org/10.1136/tobaccocontrol-2011-050040
Sureda X, et al. Secondhand Smoke Levels in Public Building Main Entrances: Outdoor and Indoor PM2.5 Assessment. Tob Control. 2012;21(6):543-8. PubMed PMID: 21964181.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Secondhand smoke levels in public building main entrances: outdoor and indoor PM2.5 assessment. AU - Sureda,Xisca, AU - Martínez-Sánchez,Jose M, AU - López,María José, AU - Fu,Marcela, AU - Agüero,Fernando, AU - Saltó,Esteve, AU - Nebot,Manel, AU - Fernández,Esteve, Y1 - 2011/09/28/ PY - 2011/10/4/entrez PY - 2011/10/4/pubmed PY - 2013/3/19/medline SP - 543 EP - 8 JF - Tobacco control JO - Tob Control VL - 21 IS - 6 N2 - BACKGROUND/OBJECTIVES: To describe secondhand smoke (SHS) levels in halls and main entrances (outdoors) in different buildings by measurement of PM(2.5) and airborne nicotine. METHODS: Cross-sectional study in a sample of 47 public buildings. The authors studied SHS levels derived from PM(2.5) (micrograms per cubic metre) using TSI SidePak Personal Aerosol Monitors. The authors tested four locations within buildings: hall, main entrance (outdoor), control (indoor) and control (outdoor). The authors also measured airborne nicotine concentration (micrograms per cubic metre) in main entrances (outdoor). The authors computed medians and IQRs to describe the data. Spearman correlation coefficient (rsp) was used to explore the association between PM(2.5) concentrations simultaneously measured in halls and main entrances as well as between PM(2.5) and nicotine concentrations. RESULTS: The authors obtained an overall median PM(2.5) concentration of hall 18.20 μg/m(3) (IQR: 10.92-23.92 μg/m(3)), main entrance (outdoor) 17.16 μg/m(3) (IQR: 10.92-24.96 μg/m(3)), control (indoor) 10.40 μg/m(3) (IQR: 6.76-15.60 μg/m(3)) and control (outdoor) 13.00 μg/m(3) (IQR: 8.32-18.72 μg/m(3)). The PM(2.5) concentration in halls was more correlated with concentration in the main entrances (outdoors) (rsp=0.518, 95% CI 0.271 to 0.701) than with the control indoor (rsp=0.316, 95% CI 0.032 to 0.553). The Spearman correlation coefficient between nicotine and PM(2.5) concentration was 0.365 (95% CI -0.009 to 0.650). CONCLUSIONS: Indoor locations where smoking is banned are not completely free from SHS with levels similar to those obtained in the immediate entrances (outdoors) where smoking is allowed, indicating that SHS from outdoors settings drifts to adjacent indoors. These results warrant a revision of current smoke-free policies in particular outdoor settings. SN - 1468-3318 UR - https://www.unboundmedicine.com/medline/citation/21964181/Secondhand_smoke_levels_in_public_building_main_entrances:_outdoor_and_indoor_PM2_5_assessment_ L2 - https://tobaccocontrol.bmj.com/lookup/pmidlookup?view=long&pmid=21964181 DB - PRIME DP - Unbound Medicine ER -