WTS database

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Topographical characteristics and shear bond strength of tooth surfaces cut with a laser-powered hydrokinetic system	1999	Department of Biomaterials Science, University of the Pacific School of Dentistry, San Francisco, CA 94115, USA.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The Journal of prosthetic dentistry Periodical, Abbrev. J.Prosthet.Dent. Pub Date Free Form Oct Volume 82 Issue 4 Start Page 451 Other Pages 455 Notes LR: 20141120; JID: 0376364; 0 (Composite Resins); ppublish Place of Publication UNITED STATES ISSN/ISBN 0022-3913; 0022-3913 Accession Number PMID: 10512965 Language eng SubFile Comparative Study; Journal Article; D; IM; S DOI S0022391399002486 [pii] Output Language Unknown(0) PMID 10512965 Abstract STATEMENT OF PROBLEM: Erbium lasers, specifically Er;YAG and Er, Cr;YSGG that emit in the near red wavelengths, cut both enamel and dentine. Bonding to these cut surfaces with composites has not been assessed for all laser systems. PURPOSE: This investigation assessed the shear bond strength of composite bonded to tooth structure treated with an Er,Cr;YSGG-powered hydrokinetic system (HKS, Millennium system) and then was compared with surfaces treated with a carbide bur. MATERIAL AND METHODS: Extracted human molars were cut into enamel and dentin with both systems. Nonetched and acid-etched subgroups were evaluated. Shear bond strength was measured with an Instron test machine with a knife-edge loading head. In addition, SEMs were evaluated. RESULTS: There were no significant differences in shear bond strength between etched bur cut (23.3 +/- 2.5 MPa), etched laser-cut enamel (23.7 +/- 4.5 MPa), and nonetched laser-cut enamel (20.5 +/- 2.8 MPa). For nonetched enamel, bond strength values for laser-cut surfaces were significantly higher than the bur-cut surfaces (8.7 +/- 4.3 MPa). Bond strength differences for dentin between bur (14.3 +/- 1.7 MPa) and laser cuts (11.5 +/- 4.3 MPa) were not significant (P =.03). SEM revealed that laser cutting of enamel did not cause formation of a smear layer. CONCLUSION: There were no significant differences in shear bond strength between etched bur-cut, etched laser-cut, and nonetched laser-cut enamel. With nonetched enamel, bond strength values for nonetched laser-cut surfaces were significantly higher than for the bur-cut surfaces. No bond strength differences between bur and laser cutting existed for dentin. Similar topography was observed for bur and laser prepared surfaces of etched enamel and nonetched dentin. Descriptors Acid Etching, Dental, Composite Resins, Dental Enamel/physiology/surgery/ultrastructure, Dental High-Speed Equipment, Dentin/physiology/surgery/ultrastructure, Humans, In Vitro Techniques, Laser Therapy/instrumentation/methods, Microscopy, Electron, Scanning, Molar, Stress, Mechanical, Surface Properties, Tooth/physiology/surgery/ultrastructure Links Book Title Database Publisher Data Source Authors Lin,S., Caputo,A. A., Eversole,L. R., Rizoiu,I. Original/Translated Title URL Date of Electronic PMCID Editors
Total prohibition of smoking but not partial restriction effectively reduced exposure to tobacco smoke among restaurant workers in Finland	2013	Finnish Institute of Occupational Health (FIOH), Helsinki, Finland, reijula@student.uef.fi.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full International journal of occupational medicine and environmental health Periodical, Abbrev. Int.J.Occup.Med.Environ.Health Pub Date Free Form Oct Volume 26 Issue 5 Start Page 682 Other Pages 692 Notes LR: 20151119; JID: 9437093; 0 (Tobacco Smoke Pollution); 6M3C89ZY6R (Nicotine); 2013/05/03 [received]; 2013/09/05 [accepted]; 2014/01/25 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 1896-494X; 1232-1087 Accession Number PMID: 24326912 Language eng SubFile Journal Article; IM DOI 10.2478/s13382-013-0145-8 [doi] Output Language Unknown(0) PMID 24326912 Abstract OBJECTIVES: To assess work-related exposure to tobacco smoke in Finnish restaurants, a series of nationwide questionnaire surveys were conducted among restaurant workers and the levels of indoor air nicotine concentrations were measured in restaurants. The survey aimed to evaluate the impact of the smoke-free legislation in general and in particular after the total smoking ban launched in 2007. MATERIALS AND METHODS: In 2003-2010, four national questionnaire surveys were conducted among restaurant workers and the concentration of nicotine in indoor air was measured in different types of restaurants, bars and nightclubs. RESULTS: Between 2003 and 2010, the proportion of restaurant workers reporting occupational exposure to tobacco smoke dropped from 59% to 11%. Among pub workers, the decrease was from 97% to 18% and in workers of dining restaurants from 49% to 10%, respectively. The median concentration of nicotine in indoor air of all restaurants decreased from 11.7 mug/m(3) to 0.1 mug/m(3). The most significant decrease was detected in pubs where the decrease was from 16.1 mug/m(3) to 0.1 mug/m(3). Among all restaurant workers, in 2003-2010 the prevalence of daily smokers was reduced from 39% to 31% in men and from 35% to 25% in women. CONCLUSION: Total prohibition of smoking but not partial restriction in restaurants was effective in reducing work-related exposure to tobacco smoke. Strict tobacco legislation may partly be associated with the significant decrease of daily smoking prevalence among restaurant workers. Descriptors Links Book Title Database Publisher Data Source Authors Reijula,J., Johnsson,T., Kaleva,S., Tuomi,T., Reijula,K. Original/Translated Title URL Date of Electronic 20140125 PMCID Editors
Toward a Regulatory Framework for the Waterpipe	2016	Ramzi G. Salloum is with the Department of Health Outcomes and Policy and the Institute for Child Health Policy, University of Florida College of Medicine, Gainesville. Taghrid Asfar is with the Department of Public Health Sciences, University of Miami Mi	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Public Health Periodical, Abbrev. Am.J.Public Health Pub Date Free Form 23-Aug Volume Issue Start Page e1 Other Pages e5 Notes LR: 20160823; JID: 1254074; aheadofprint; SO: Am J Public Health. 2016 Aug 23:e1-e5. Place of Publication ISSN/ISBN 1541-0048; 0090-0036 Accession Number PMID: 27552262 Language ENG SubFile JOURNAL ARTICLE DOI 10.2105/AJPH.2016.303322 [doi] Output Language Unknown(0) PMID 27552262 Abstract Waterpipe smoking has been dramatically increasing among youth worldwide and in the United States. Despite its general association with misperceptions of reduced harm, evidence suggests this is a harmful and dependence-inducing tobacco use method that represents a threat to public health. Waterpipe products continue to be generally unregulated, which likely has contributed to their spread. The Family Smoking Prevention and Tobacco Control Act of 2009 granted the US Food and Drug Administration (FDA) the authority to regulate waterpipe products, and the FDA finalized a rule extending its authority over waterpipe products in May 2016. This critical step in addressing the alarming increase in waterpipe smoking in the United States has created urgency for research to provide the evidence needed for effective regulatory initiatives for waterpipe products. We aim to stimulate such research by providing a framework that addresses the scope of waterpipe products and their unique context and use patterns. The proposed framework identifies regulatory targets for waterpipe product components (i.e., tobacco, charcoal, and device), the waterpipe cafe setting, and its marketing environment dominated by Internet promotion. (Am J Public Health. Published online ahead of print August 23, 2016: e1-e5. doi:10.2105/AJPH.2016.303322). Descriptors Links Book Title Database Publisher Data Source Authors Salloum,R.G., Asfar,T., Maziak,W. Original/Translated Title URL Date of Electronic 20160823 PMCID Editors
Toward Effective Water Pipe Tobacco Control Policy in the United States: Synthesis of Federal, State, and Local Policy Texts	2016		Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Health promotion : AJHP Periodical, Abbrev. Am.J.Health Promot. Pub Date Free Form 5-Jan Volume Issue Start Page Other Pages Notes LR: 20160708; GR: R01 CA140150/CA/NCI NIH HHS/United States; GR: R21 CA185767/CA/NCI NIH HHS/United States; JID: 8701680; NIHMS795045; OTO: NOTNLM; PMCR: 2017/07/05 00:00; aheadofprint Place of Publication ISSN/ISBN 2168-6602; 0890-1171 Accession Number PMID: 26730559 Language ENG SubFile JOURNAL ARTICLE DOI 10.4278/ajhp.150218-QUAL-736 [doi] Output Language Unknown(0) PMID 26730559 Abstract Purpose . Water pipe tobacco smoking (WTS) is growing in popularity among U.S. young adults and is associated with health risks similar to those of cigarette smoking. The purpose of this study is to examine existing tobacco control policies (TCPs) in order to investigate how they engage WTS. Approach . A systematic synthesis of content and legal interactions among federal, state, and local TCP documents. Setting . Pennsylvania, which represents a politically and demographically diverse microcosm of the United States. Participants . No human subjects. Method . Federal and state TCPs were retrieved via public legal repositories. Local policy searches were conducted via county/municipal Web sites, inclusive of 13 localities that had autonomous health departments or existing TCPs based on a National Cancer Institute report. Full-text TCPs were double coded within a grounded theory framework for health policy analysis. Emergent codes were used to compare and contrast policy texts and to examine legal interactions among TCPs. Results . Examination of policy categories including youth access, use restrictions, and taxation revealed WTS as largely omitted from current TCPs. WTS was sometimes addressed as an "other" tobacco product under older TCPs, though ambiguities in language led to questionable enforceability. State preemptions have rolled back or prevented well-tailored reforms at the local level. Federal preemptions have likewise constrained state TCPs. Conclusion . Outdated, preempted, and unclear policies limit the extent to which TCPs engage WTS. Health advocates might target these aspects of TCP reform. Descriptors Links Book Title Database Publisher Data Source Authors Colditz,J.B., Ton,J.N., James,A.E., Primack,B.A. Original/Translated Title URL Date of Electronic 20160105 PMCID PMC4935627 Editors
Toward the stereochemical identification of prohibited characterizing flavors in tobacco products: the case of strawberry flavor	2015	Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany, Meike.Paschke@bfr.bund.de.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Archives of Toxicology Periodical, Abbrev. Arch.Toxicol. Pub Date Free Form Aug Volume 89 Issue 8 Start Page 1241 Other Pages 1255 Notes JID: 0417615; 0 (Flavoring Agents); 0 (Volatile Organic Compounds); 2015/05/04 [received]; 2015/06/18 [accepted]; 2015/07/03 [aheadofprint]; ppublish Place of Publication Germany ISSN/ISBN 1432-0738; 0340-5761 Accession Number PMID: 26138682 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1007/s00204-015-1558-x [doi] Output Language Unknown(0) PMID 26138682 Abstract With the revision of the European Tobacco Products Directive (2014/40/EU), characterizing flavors such as strawberry, candy, vanillin or chocolate will be prohibited in cigarettes and fine-cut tobacco. Product surveillance will therefore require analytical means to define and subsequently detect selected characterizing flavors that are formed by supplemented flavors within the complex matrix tobacco. We have analyzed strawberry-flavored tobacco products as an example for characterizing fruit-like aroma. Using this approach, we looked into aroma components to find indicative patterns or features that can be used to satisfy obligatory product information as requested by the European Directive. Accordingly, a headspace solid-phase microextraction (HS-SPME) technique was developed and coupled to subsequent gas chromatography-mass spectrometry (GC/MS) to characterize different strawberry-flavored tobacco products (cigarettes, fine-cut tobacco, liquids for electronic cigarettes, snus, shisha tobacco) for their volatile additives. The results were compared with non-flavored, blend characteristic flavored and other fruity-flavored cigarettes, as well as fresh and dried strawberries. Besides different esters and aldehydes, the terpenes linalool, alpha-terpineol, nerolidol and limonene as well as the lactones gamma-decalactone, gamma-dodecalactone and gamma-undecalactone could be verified as compounds sufficient to convey some sort of strawberry flavor to tobacco. Selected flavors, i.e., limonene, linalool, alpha-terpineol, citronellol, carvone and gamma-decalactone, were analyzed further with respect to their stereoisomeric composition by using enantioselective HS-SPME-GC/MS. These experiments confirmed that individual enantiomers that differ in taste or physiological properties can be distinguished within the tobacco matrix. By comparing the enantiomeric composition of these compounds in the tobacco with that of fresh and dried strawberries, it can be concluded that non-natural strawberry aroma is usually used to produce strawberry-flavored tobacco products. Such authenticity control can become of interest particularly when manufacturers claim that natural sources were used for flavoring of products. Although the definition of characterizing flavors by analytical means remains challenging, specific compounds or features are required to be defined for routine screening of reported information. Clarifications by sensory testing might still be necessary, but could be limited to a few preselected samples. Descriptors Links Book Title Database Publisher Data Source Authors Paschke,M., Hutzler,C., Henkler,F., Luch,A. Original/Translated Title URL Date of Electronic 20150703 PMCID Editors
Towards a topographical model of narghile water-pipe cafÃ© smoking: A pilot study in a high socioeconomic status neighborhood of Beirut, Lebanon	2004	Shihadeh, A., Department of Mechanical Engineering, American University of Beirut, P.O. Box 11-0236, Riad El S., Beirut, Lebanon	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Pharmacology Biochemistry and Behavior Periodical, Abbrev. Pharmacol.Biochem.Behav. Pub Date Free Form / Volume 79 Issue 1 Start Page 75 Other Pages 82 Notes Place of Publication ISSN/ISBN 0091-3057 Accession Number Language SubFile DOI Output Language Unknown(0) PMID Abstract A pilot study of narghile water-pipe smokers in a cafe in the Hamra neighborhood of Beirut, Lebanon, was conducted to develop a preliminary model of narghile water-pipe smoking behavior for use in laboratory smoking machine studies. The model is based on data gathered from smoking sessions of 30 min or longer duration from 52 smoker volunteers using a differential pressure puff topography instrument, as well as anonymous visual observations of 56 smokers in the same cafe. Results showed that the "average" water-pipe cafe smoking session consists of one hundred seventy-one 530-ml puffs of 2.6-s duration at a frequency of 2.8 puffs/min. The implications of this comparatively high-intensity puffing regimen on the production of toxic smoke constituents are discussed. Â© 2004 Elsevier Inc. All rights reserved. Descriptors adult, article, behavior, comparative study, female, human, devices, laboratory, Lebanon, male, pilot study, priority journal, smoking, social status, topography Links Book Title Database Embase; MEDLINE Publisher Data Source Embase Authors Shihadeh,A., Azar,S., Antonios,C., Haddad,A. Original/Translated Title URL Date of Electronic PMCID Editors
Towards estimating the burden of disease attributable to second-hand smoke exposure in Polish children	2014	European Environment Agency, Copenhagen, Denmark.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full International journal of occupational medicine and environmental health Periodical, Abbrev. Int.J.Occup.Med.Environ.Health Pub Date Free Form Jan Volume 27 Issue 1 Start Page 38 Other Pages 49 Notes JID: 9437093; 0 (Tobacco Smoke Pollution); 2013/03/15 [received]; 2013/12/13 [accepted]; 2014/01/24 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 1896-494X; 1232-1087 Accession Number PMID: 24464439 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.2478/s13382-014-0223-6 [doi] Output Language Unknown(0) PMID 24464439 Abstract OBJECTIVES: To estimate the burden of disease attributable to second-hand smoke (SHS) exposure in Polish children in terms of the number of deaths and disability adjusted life years (DALYs) due to lower respiratory infections (LRI), otitis media (OM), asthma, low birth weight (LBW) and sudden infant death syndrome (SIDS). MATERIALS AND METHODS: Estimates of SHS exposure in children and in pregnant women as well as information concerning maternal smoking were derived from a national survey, the Global Youth Tobacco Survey, and the Global Adult Tobacco Survey in Poland. Mortality data (LRI, OM, asthma, and SIDS), the number of cases (LBW), and population data were obtained from national statistics (year 2010), and DALYs came from the WHO (year 2004). The burden of disease due to SHS was calculated by multiplying the total burden of a specific health outcome (deaths or DALYs) by a population attributable fraction. RESULTS: Using two estimates of SHS exposure in children: 48% and 60%, at least 12 and 14 deaths from LRI in children aged up to 2 years were attributed to SHS, for the two exposure scenarios, respectively. The highest burden of DALYs was for asthma in children aged up to 15 years: 2412, and 2970 DALYs, for the two exposure scenarios, respectively. For LRI, 419 and 500 DALYs, and for OM, 61 and 77 DALYs were attributed to SHS, for the two exposure scenarios, respectively. Between 13% and 27% of SIDS cases and between 3% and 16% of the cases of LBW at term were attributed to SHS exposure. CONCLUSIONS: This study provides a conservative estimate of the public health impact of SHS exposure on Polish children. Lack of comprehensive, up to date health data concerning children, as well as lack of measures that would best reflect actual SHS exposure are major limitations of the study, likely to underestimate the burden of disease. Descriptors Links Book Title Database Publisher Data Source Authors Jarosinska,D., Polanska,K., Wojtyniak,B., Hanke,W. Original/Translated Title URL Date of Electronic 20140124 PMCID Editors
Toxic volatile organic compounds in simulated environmental tobacco smoke: emission factors for exposure assessment	1998	Indoor Environment Program, Lawrence Berkeley National Laboratory, CA 947720, USA. jmdaisey@lbl.gov	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of exposure analysis and environmental epidemiology Periodical, Abbrev. J.Expo.Anal.Environ.Epidemiol. Pub Date Free Form Jul-Sep Volume 8 Issue 3 Start Page 313 Other Pages 334 Notes LR: 20071114; GR: R01-HL42490/HL/NHLBI NIH HHS/United States; JID: 9111438; 0 (Organic Chemicals); 0 (Tobacco Smoke Pollution); ppublish Place of Publication UNITED STATES ISSN/ISBN 1053-4245; 1053-4245 Accession Number PMID: 9679214 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.; IM DOI Output Language Unknown(0) PMID 9679214 Abstract Environmental tobacco smoke (ETS) is suspected to be a major source of exposure to many of the compounds identified as toxic air contaminants. However, we lack emission factors for many of the ETS air toxics for the brands of cigarettes which currently dominate the market and therefore cannot adequately estimate contributions of ETS to such exposures. This study provides up-to-date emission factors for selected air toxics and other volatile organic compounds (VOCs) in simulated ETS and uses them in a mass balance model to evaluate the potential contribution of ETS to air toxics in indoor air and, therefore to indoor exposures to air toxics. Emission factors (microgram/cigarette) were determined for 21 VOCs (including two aldehydes), nicotine and particulate matter in a room-sized (20-m3) environmental chamber with stainless-steel walls, operated under static conditions, using diluted sidestream smoke (no exhaled mainstream smoke) to simulate ETS. Experiments were conducted for Kentucky Reference cigarette 1R4F and for each of six commercial cigarette brands with major market shares. The variabilities in the ETS emission factors among brands of cigarettes were relatively small, ranging from 16 to 31% (expressed as the coefficient of variation) among the six brands. The concentrations of most of the VOCs did not change over the 4-hour periods of the experiments. However, concentrations of 3-ethenylpyridine, phenol, o-cresol and m,p-cresol showed consistent decreases over time, indicating removal by means other than the very low air infiltration rate (0.03 h-1), e.g., deposition onto the chamber surfaces. Emission factors for these compounds were calculated to take these losses into account and the rate constants for these losses were estimated. To estimate indoor concentrations and inhalation exposures to 16 VOCs, nicotine and PM-2.5, the average emission factors for the six commercial brands were used in a time-dependent mass-balance model for two scenarios: a typical office building and an average residence. In general, the indoor concentrations of the air toxics from ETS, under conditions selected to be "typical" rather than extreme, are comparable in magnitude to average outdoor concentrations, indicating that ETS can be a significant contributor to the total indoor concentration and the inhalation exposure for these species. At higher smoking rates, exposures to VOCs from ETS could be several times higher than those modeled under more "typical" conditions. Descriptors Air Pollution, Indoor/analysis, Environmental Exposure/analysis, Environmental Monitoring, Humans, Models, Theoretical, Organic Chemicals/analysis, Smoking, Tobacco Smoke Pollution/analysis Links Book Title Database Publisher Data Source Authors Daisey,J. M., Mahanama,K. R., Hodgson,A. T. Original/Translated Title URL Date of Electronic PMCID Editors
Toxicant content, physical properties and biological activity of waterpipe tobacco smoke and its tobacco-free alternatives	2015	Department of Mechanical Engineering, American University of Beirut, Beirut, Lebanon Department of Psychology, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, USA.; Department of Safety of Pesticides, German	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Tobacco control Periodical, Abbrev. Tob.Control Pub Date Free Form Mar Volume 24 Suppl 1 Issue Start Page i22 Other Pages i30 Notes LR: 20150319; CI: Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.; GR: P50DA036105/DA/NIDA NIH HHS/United States; GR: R0 Place of Publication England ISSN/ISBN 1468-3318; 0964-4563 Accession Number PMID: 25666550 Language eng SubFile Journal Article; Research Support, N.I.H., Extramural; Review; IM DOI 10.1136/tobaccocontrol-2014-051907 [doi] Output Language Unknown(0) PMID 25666550 Abstract OBJECTIVES: Waterpipe smoking using sweetened, flavoured tobacco products has become a widespread global phenomenon. In this paper, we review chemical, physical and biological properties of waterpipe smoke. DATA SOURCES: Peer-reviewed publications indexed in major databases between 1991 and 2014. Search keywords included a combination of: waterpipe, narghile, hookah, shisha along with names of chemical compounds and classes of compounds, in addition to terms commonly used in cellular biology and aerosol sizing. STUDY SELECTION: The search was limited to articles published in English which reported novel data on waterpipe tobacco smoke (WTS) toxicant content, biological activity or particle size and which met various criteria for analytical rigour including: method specificity and selectivity, precision, accuracy and recovery, linearity, range, and stability. DATA EXTRACTION: Multiple researchers reviewed the reports and collectively agreed on which data were pertinent for inclusion. DATA SYNTHESIS: Waterpipe smoke contains significant concentrations of toxicants thought to cause dependence, heart disease, lung disease and cancer in cigarette smokers, and includes 27 known or suspected carcinogens. Waterpipe smoke is a respirable aerosol that induces cellular responses associated with pulmonary and arterial diseases. Except nicotine, smoke generated using tobacco-free preparations marketed for 'health conscious' users contains the same or greater doses of toxicants, with the same cellular effects as conventional products. Toxicant yield data from the analytical laboratory are consistent with studies of exposure biomarkers in waterpipe users. CONCLUSIONS: A sufficient evidence base exists to support public health interventions that highlight the fact that WTS presents a serious inhalation hazard. Descriptors Links Book Title Database Publisher Data Source Authors Shihadeh,A., Schubert,J., Klaiany,J., El Sabban,M., Luch,A., Saliba,N.A. Original/Translated Title URL Date of Electronic 20150209 PMCID PMC4345918 Editors
Toxicant inhalation among singleton waterpipe tobacco users in natural settings	2019	Public Health Policy Evaluation Unit, Imperial College London, Hammersmith, UK.; Department of Psychology, Virginia Commonwealth University, Richmond, Virginia, USA.; Center for the Study of Tobacco Products, Virginia Commonwealth University, Ri(TRUNCATED	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Tobacco control Periodical, Abbrev. Tob.Control Pub Date Free Form Mar Volume 28 Issue 2 Start Page 181 Other Pages 188 Notes LR: 20190614; CI: (c) Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2019; GR: P50 DA036105/DA/NIDA NIH HHS/United States; GR: R01 DA025659/DA/NIDA NIH HHS/United States; JID: 9209612; NIHMS971077; OTO: NOTNLM; Place of Publication England ISSN/ISBN 1468-3318; 0964-4563 Accession Number PMID: 29807946 Language eng SubFile Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S. DOI 10.1136/tobaccocontrol-2017-054230 [doi] Output Language Unknown(0) PMID 29807946 Abstract BACKGROUND: Studies that assess waterpipe tobacco smoking behaviour and toxicant exposure generally use controlled laboratory environments with small samples that may not fully capture real-world variability in human behaviour and waterpipe products. This study aimed to conduct real-time sampling of waterpipe tobacco use in natural environments using an in situ device. METHODS: We used the REALTIME sampling instrument: a validated, portable, self-powered device designed to sample automatically a fixed percentage of the aerosol flowing through the waterpipe mouthpiece during every puff. We recruited participants at cafe and home settings in Jordan and measured puffing behaviour in addition to inhalation exposure of total particulate matter (TPM), carbon monoxide (CO), nicotine, polycyclic aromatic hydrocarbons and volatile aldehydes. We correlated total inhaled volume with five selected toxicants and calculated the regression line of this relationship. RESULTS: Averaged across 79 singleton sessions (52% male, mean age 27.0, 95% home sessions), sessions lasted 46.9 min and participants drew 290 puffs and inhaled 214 L per session. Mean quantities of inhaled toxicants per session were 1910 mg TPM, 259 mg CO, 5.0 mg nicotine, 117 ng benzo[a]pyrene and 198 ng formaldehyde. We found positive correlations between total inhaled volume and TPM (r=0.472; p Descriptors Links Book Title Database Publisher Data Source Authors Jawad,M., Eissenberg,T., Salman,R., Soule,E., Alzoubi,K.H., Khabour,O.F., Karaoghlanian,N., Baalbaki,R., El Hage,R., Saliba,N.A., Shihadeh,A. Original/Translated Title URL Date of Electronic 20180528 PMCID PMC6563915 Editors

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