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Constituents in tobacco and smoke emissions from Canadian cigarettes.
Tob Control. 2008 Sep; 17 Suppl 1:i24-31.TC

Abstract

BACKGROUND

There is relatively little information available about the chemical constituents of tobacco and individual toxic emissions from cigarettes and other tobacco products.

OBJECTIVE

To characterise 21 constituents in whole tobacco and 41 constituents in the smoke emissions of Canadian cigarettes, as well as to compare differences between domestic and imported brands.

METHODS

All data were released as part of Canada's Tobacco Reporting Regulations. Data are reported for 247 brands tested in 2004.

RESULTS

The results indicate significant differences in the constituent levels of domestic and imported cigarette tobacco. Levels of ammonia compounds were significantly higher in imported "US blended" tobacco compared to domestically manufactured brands. Toxic emissions for tobacco-specific nitrosamines were significantly higher for imported cigarettes under both the ISO and Canadian Intense testing methods; however domestic cigarettes had higher levels of other toxic constituents, including benzo[a]pyrene. The findings also highlight the extent to which nicotine, heavy metals and tobacco-specific nitrosamines are "transferred" from the whole tobacco to the smoke.

CONCLUSIONS

The findings illustrate important differences between domestically manufactured Virginia flue-cured cigarettes and imported US blended cigarettes. Although the findings suggest that domestic cigarettes had lower levels of constituents such as ammonia, which are associated with increased "additives", Canadian cigarettes were by no means "additive-free." Overall, these findings provide important benchmarks for making historical and international comparisons across brands on key constituents.

Authors+Show Affiliations

Department of Health Studies and Gerontology, University of Waterloo, Ontario, Canada. dhammond@uwaterloo.caNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18768456

Citation

Hammond, D, and R J. O'Connor. "Constituents in Tobacco and Smoke Emissions From Canadian Cigarettes." Tobacco Control, vol. 17 Suppl 1, 2008, pp. i24-31.
Hammond D, O'Connor RJ. Constituents in tobacco and smoke emissions from Canadian cigarettes. Tob Control. 2008;17 Suppl 1:i24-31.
Hammond, D., & O'Connor, R. J. (2008). Constituents in tobacco and smoke emissions from Canadian cigarettes. Tobacco Control, 17 Suppl 1, i24-31. https://doi.org/10.1136/tc.2008.024778
Hammond D, O'Connor RJ. Constituents in Tobacco and Smoke Emissions From Canadian Cigarettes. Tob Control. 2008;17 Suppl 1:i24-31. PubMed PMID: 18768456.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Constituents in tobacco and smoke emissions from Canadian cigarettes. AU - Hammond,D, AU - O'Connor,R J, PY - 2008/9/11/pubmed PY - 2009/2/20/medline PY - 2008/9/11/entrez SP - i24 EP - 31 JF - Tobacco control JO - Tob Control VL - 17 Suppl 1 N2 - BACKGROUND: There is relatively little information available about the chemical constituents of tobacco and individual toxic emissions from cigarettes and other tobacco products. OBJECTIVE: To characterise 21 constituents in whole tobacco and 41 constituents in the smoke emissions of Canadian cigarettes, as well as to compare differences between domestic and imported brands. METHODS: All data were released as part of Canada's Tobacco Reporting Regulations. Data are reported for 247 brands tested in 2004. RESULTS: The results indicate significant differences in the constituent levels of domestic and imported cigarette tobacco. Levels of ammonia compounds were significantly higher in imported "US blended" tobacco compared to domestically manufactured brands. Toxic emissions for tobacco-specific nitrosamines were significantly higher for imported cigarettes under both the ISO and Canadian Intense testing methods; however domestic cigarettes had higher levels of other toxic constituents, including benzo[a]pyrene. The findings also highlight the extent to which nicotine, heavy metals and tobacco-specific nitrosamines are "transferred" from the whole tobacco to the smoke. CONCLUSIONS: The findings illustrate important differences between domestically manufactured Virginia flue-cured cigarettes and imported US blended cigarettes. Although the findings suggest that domestic cigarettes had lower levels of constituents such as ammonia, which are associated with increased "additives", Canadian cigarettes were by no means "additive-free." Overall, these findings provide important benchmarks for making historical and international comparisons across brands on key constituents. SN - 1468-3318 UR - https://www.unboundmedicine.com/medline/citation/18768456/Constituents_in_tobacco_and_smoke_emissions_from_Canadian_cigarettes_ L2 - https://tobaccocontrol.bmj.com/lookup/pmidlookup?view=long&pmid=18768456 DB - PRIME DP - Unbound Medicine ER -