Andrew Apsley1, Sean Semple. 1. Division of Applied HealthSciences, Scottish Centre for Indoor Air, University of Aberdeen, Aberdeen, UK.
Abstract
OBJECTIVE: To determine current secondhand smoke (SHS) concentrations in bars previously assessed as part of an evaluation of Scottish smoke-free legislation 5 years ago. DESIGN: Comparison between SHS levels measured in 2006 and 2011 in 39 pubs in 2 Scottish cities. METHODS: Fine particulate matter (PM(2.5)) was measured discreetly for 30 min in each bar on one or two visits 5 years after the previous visit in May/June 2006. These 5-year follow-up visits were undertaken on the same day of the week and at approximately the same time of day. RESULTS: Average PM(2.5) levels measured in a total of 51 bar visits in 2011 were 12 μg/m(3) (range 2-155 μg/m(3)) compared to 20 μg/m(3) (range 6-104 μg/m(3)) in the period immediately after the ban in 2006. Fine particulate concentrations in all but two visits in 2011 were comparable to PM(2.5) levels measured in outside ambient air on the same day, with 92% of visits (n=47) providing 30-min average PM(2.5) concentrations less than 25 μg/m(3). CONCLUSIONS: These results are one of the longest follow-up of any national smoke-free legislation and indicate that, 5 years after introduction, compliance is high and that the legislation continues to provide bar workers and non-smoking customers protection from SHS.
OBJECTIVE: To determine current secondhand smoke (SHS) concentrations in bars previously assessed as part of an evaluation of Scottish smoke-free legislation 5 years ago. DESIGN: Comparison between SHS levels measured in 2006 and 2011 in 39 pubs in 2 Scottish cities. METHODS: Fine particulate matter (PM(2.5)) was measured discreetly for 30 min in each bar on one or two visits 5 years after the previous visit in May/June 2006. These 5-year follow-up visits were undertaken on the same day of the week and at approximately the same time of day. RESULTS: Average PM(2.5) levels measured in a total of 51 bar visits in 2011 were 12 μg/m(3) (range 2-155 μg/m(3)) compared to 20 μg/m(3) (range 6-104 μg/m(3)) in the period immediately after the ban in 2006. Fine particulate concentrations in all but two visits in 2011 were comparable to PM(2.5) levels measured in outside ambient air on the same day, with 92% of visits (n=47) providing 30-min average PM(2.5) concentrations less than 25 μg/m(3). CONCLUSIONS: These results are one of the longest follow-up of any national smoke-free legislation and indicate that, 5 years after introduction, compliance is high and that the legislation continues to provide bar workers and non-smoking customers protection from SHS.
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