Introduction:
Aim: After the classification of second-hand smoke (SHS) as a known human pulmonary carcinogen by International Agency for Research on Cancer, most Countries of the European Union (EU) introduced smoking ban at workplaces and public places. Main aim of this study was to study trend of SHS exposure at work, 2006-2014.

Material and Methods:
Figures were collected in four cross-sectional surveys representative of population of each EU Country. Surveys were conducted in 2006, 2010, 2012, 2014 (Eurobarometer 66.2, 72.3, 77.1, 82.4) in all 28 EU Countries. The question on SHS exposure at work was recorded in both smokers and non-smokers: “How long are you exposed to tobacco smoke at your workplace?” Possible answers were: <1 hour a day; 1-5 hours; >5 hours a day; Never or almost never; don’t know, In the 2012 and 2014 surveys a new category was added: “occasionally exposed”.

Results:
Prevalence of exposure to SHS at work decreased by around 70% from 2006 to 2014. The drop was recorded since 2010 for exposures for ≥1 hour per day, whereas the exposure to <1 hour per day dropped in the 2012 survey. In 2012 and 2014 17% of participants reported to be exposed occasionally, not on a daily basis. Occasional exposure at work was not recorded in previous surveys. Figures of SHS exposure for each EU Country will be presented reporting also the year of implementation of smoking ban per each Country.

Conclusions:
SHS exposure at work dropped in 28 EU Countries after the implementation of nationwide smoking bans.

Funding:
This document was developed under the Project TackSHS that received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 681040.