A new study highlights a major shift in secondhand smoke exposure in Scotland, showing how smoking bans in enclosed public places significantly improved public health, while some challenges remain.

Significant Decline After Ban
The research, conducted by the University of Stirling and Public Health Scotland, found that secondhand smoke exposure dropped by 96% since the smoking ban was introduced in March 2006.

Long-Term Data Analysis
Researchers analyzed 26 years of data using salivary cotinine levels, a key biomarker for tobacco smoke exposure among non-smokers. Results showed a 95.7% decline between 1998 and 2024, with the sharpest drop occurring shortly after the ban.

Slower Progress and Ongoing Exposure
Despite progress, improvements have slowed since 2011, with nearly a quarter of non-smokers still exposed to secondhand smoke, particularly in workplaces not fully covered by legislation such as outdoor hospitality and home visits.

Rise in Smoke-Free Homes
The percentage of smoke-free homes increased from 75.2% to 90.2% between 2012 and 2024, reflecting a major shift toward healthier living environments.

Growing Inequality Gap
However, disparities have widened, with households in more deprived areas now ten times more likely to allow indoor smoking compared to those in wealthier areas.

Calls for Broader Protection
Researchers recommend expanding smoke-free policies to additional workplaces and strengthening smoking cessation support to further reduce exposure and address health inequalities.

Conclusion
While the smoking ban has achieved remarkable success, further action is needed to ensure a completely smoke-free environment for all.

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