Media release:                                                                     August 19, 2004

Secondhand smoke tar gets into smaller airways

Tobacco study showed passive smoke is retained longer     

 

Research believed to have been funded by the tobacco industry showed more than ten years ago that secondhand smoke can get into smaller airways and stay longer than active smoke.

A study from the early 1990s by UK researchers*, held in a library of British American Tobacco documents, has just come to light confirming that secondhand smoke tar stayed longer in the airways (another study by some of the same authors cited in the report said while tar from mainstream smoke remained in the airways for 1-2 hours, secondhand smoke tar stayed for over nine hours) - suggesting that it penetrated more deeply into the lung, reaching much smaller airways, and taking longer to disappear from the exhaled breath. Deeper penetration was made possible by the smaller particle size of secondhand smoke.

Health and trade union leaders say the study adds to the urgency of all Australian states and territories implementing total indoor smoke bans in all workplaces, including pubs and clubs.

Asks Anne Jones from the SmokeFree Australia coalition:  “We would like to know what, if any, action BAT have taken to make these findings widely known. Where are the warnings from tobacco companies about the harm caused by secondhand smoke?

“Studies published just in the past few months show it’s killing a large number of Australian bar workers every year; that it causes twice the risk of heart disease previously thought; and that it raises the overall death risk by up to 15%.

“The revenue being milked from nicotine-addicted problem gamblers is simply not worth the overall health harm to workers and patrons from these smoky venues,” she says.

“Venues accept that there is a serious health risk and that legislation to ban indoor smoking is inevitable. Any further delays will just lead to unnecessary exposure – and increase the risk of expensive lawsuits against smoky venues.

“This also highlights the need for workcover/worksafe authorities to act more decisively against this clear and serious toxic danger to workers’ and patrons’ health.”     

 

* Black A, McAughey JJ, Knight DA, Dickens CJ, Srong JC. Aerosol Science Centre, AEA Technology, Harwell. Oxfordshire, UK. (circa 1992-93) “Estimation of ETS retention in volunteers from measurements of exhaled smoke composition.” Bates no. 500831661. Online at http://bat.library.ucsf.edu/data/w/l/h/wlh10a99/wlh10a99.pdf 

 

Comment:                                Anne Jones, ASH Australia                                  ph. 0417-227-879

Comment / media info:            Stafford Sanders, SmokeFree Australia                      ph. (02) 9334-1823

SmokeFree Australia coalition for clean safe workplaces:
Liquor, Hospitality and Miscellaneous Workers’ Union;  Musicians’ Union of Australia;  Media, Entertainment and Arts Alliance; Australian Council of Trade Unions; Action on Smoking and Health Australia; The Cancer Council Australia; National Heart Foundation of Australia; Australian Council on Smoking and Health; Non-Smokers’ Movement of Australia; Australian Medical Association.

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