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The aim of this paper is to examine the confusion and misperceptions regarding the actual risk involved in smokeless tobacco use as an alternative nicotine delivery option for inveterate smokers.

The paper cites published research and current government guidelines to demonstrate misinformation on the part of some in the public health community.

The paper finds that smokeless tobacco is substantially safer than smoking and is a viable choice to increase smoking cessation for those unwilling or unable to quit.

The public is entitled to know the facts about nicotine and the truth about the actual risk levels involved in consuming various forms of tobacco.

Consumers are capable of making an informed choice for themselves regarding the risks of using smokeless tobacco if the truth is communicated to them.

Alcohol and tobacco consumption are significant public health concerns and considered some of the riskiest behaviors among students. Despite strong indications of heavy consumption of these substances, certain sections of the student population remain unexplored regarding their consumption patterns and associated factors, including research scholars pursuing Doctor of Philosophy degrees. This study aims to explore the patterns and correlations of consumption of alcohol and tobacco among doctoral students in three Indian universities.

A cross-sectional study was conducted on a total of 530 scholars from three central universities, Aligarh Muslim University, Banaras Hindu University and Jawahar Lal Nehru University, and focused on two substances (alcohol and tobacco) frequently used by students in India. Bi-variate analysis and penalized logistic regressions were applied to analyse the prevalence and associated factors of alcohol, smoking and smokeless tobacco among doctoral students.

Tobacco consumption was observed to be the dominant form of substance use among doctoral students. Findings revealed that 34% of scholars smoked and 25% consumed smokeless tobacco daily and around 14% consumed alcohol at least once a week. Major significant correlates of substance consumption among scholars were found to be gender, religion, parental mortality, dissatisfaction with academic performance and stress about future career/employment. Significant variation in substance use patterns was observed among universities.

This study provides first-hand evidence on substance use patterns and the correlates among doctoral students in three Indian universities. Findings indicate the implementation of specific intervention programs for mental health and counselling for this section of students to prevent substance use addiction would be beneficial.

The purpose of this paper is to examine the prevalence of tobacco use and associated factors influencing the use of tobacco among adolescents in a school setting.

A cross-sectional descriptive study was conducted amongst Bhutanese adolescents studying at high schools in the district of Wangdue Phodrang in May 2016. A total of 378 eighth-grade students from four schools participated in the study. A self-administered questionnaire was used to collect data. Bivariate and multivariate logistic regressions were carried out to describe the predictors of tobacco use.

Of the 378 student participants, 52.90 percent were girls and 47.10 percent boys. The age ranged from 11 to 19 years, and the majority lived in school hostels (82 percent). The prevalence of smoking was 10.80 percent while smokeless tobacco users constituted 11.10 percent in the month preceding the study. Gender, tobacco use by siblings and friends, ever having tried alcohol, consumption of alcohol in the last 30 days, previous experimentation with cigarettes/bidi and smokeless tobacco/baba (p-value <0.05) were significantly related to the use of tobacco among students. In multivariate analysis, tobacco use by friends (AdjOR=1.09; 95%CI=0.01–2.48), ever having tried alcohol (AdjOR=2.24; 95%CI=1.75–3.72), current alcohol use (AdjOR=2.63; 95%CI=1.52–4.31), experimentation with cigarettes/bidi (AdjOR =39.46; 95%CI=11.91–90.63) or with smokeless tobacco/baba (AdjOR=32.61; 95%CI=11.78–90.30) were observed as the strong predictors of current tobacco use among adolescents.

These study results re-emphasized the rising public health concern of tobacco use among younger boys and girls. The findings may help the Bhutanese policy makers and managers to better understand the present situation of adolescent tobacco use and its associated determinants, and formulate appropriate tobacco control strategies for adolescents.

In Norway, snus (low nitrosamine smokeless tobacco) is allowed to compete with cigarettes for market share, and over the past decades the prevalence of snus users has increased as the prevalence of smokers has decreased. The author has aimed to sum up the findings from research that has tried to identify the role of snus in smoking cessation and how availability to snus in Norway has affected the magnitude of concomitant use of snus and cigarettes.

Relevant results from Norwegian studies are presented, and, if possible, compared to findings from studies conducted in other countries.

Snus is reported by ever‐smokers to be the most preferred method for quitting, and former smokers make up the largest segment of Norwegian snus users. The quit rate for smoking is consistently observed to be higher for snus users than for smokers who have no experience of use of snus. Moreover, those using snus are more likely to have quit smoking completely or considerably reduced their cigarette smoking than users of medicinal smoking cessation products. The increase in snus use among men in Norway has not been paralleled by an increase in dual use of snus and cigarettes.

The results observed in Norway might not be extrapolated to other countries that do not have the same history of use of snus.

The replacement of cigarettes by snus has been the most typical pattern of use in Norway, and the availability of snus may have been beneficial to public health.

Besides neighbouring Sweden, Norway is the only country in the eurozone with a tradition of snus use. Knowledge about the pattern of snus use in these countries is relevant for policymakers when deciding the legal status of snus in the EU.

The purpose of this paper is to analyze the phenomenon of makeup effect using numerical simulation and model experiments on seven different natural smoke extraction patterns of tall space. Airflow distribution and heat accumulation phenomenon in different cases are compared. The natural smoke exhaust system for tall spaces has many advantages, including low cost, no power and low maintenance cost. It is more advantageous than the mechanical type of exhaust. However, the internal air distribution is complicated since the large span spatial character. Effective and correct verification method is very important for the analysis of flow fields in tall spaces.

This study used fire dynamics simulator (FDS) software to simulate the fire scene. The model experiments are conducted to determine if the numerical simulation results are reasonable. A single-mirror Schlieren system, including an 838 (H) × 736 mm (W) square concave mirror, as well as the focal length of 3,100 mm was adopted to record the dynamic flow of hot gas. Six smokeless candles were burned in a 1/12.5 model in experiments to record the distribution of inflow, accumulation and outflow of airflow in the space. In addition, the thermocouple lines were mounted in the model for temperature measurement.

The results of numerical simulation and model experiments have proved that makeup air has a significant effect on the effectiveness of a natural smoke vent system. Larger areas of smoke vents will produce more heat accumulation phenomenon. In this study, the air inlet and vent installed on the same side have a better heat removal effect. Moreover, Schlieren photography technique is proved to be an accurate measurement method to record the dynamic flow of hot air immediately, directly and accurately. The dynamic flow behavior of hot gas in the model has been visualized in this paper.

At present, there is no examination method other than checking the smoke vent area to validate the effectiveness of a natural smoke vent system in Taiwan, as well as no requirements regarding the makeup inlet. The effect of makeup air in generating the effective push-pull phenomenon of airflow has been analyzed. In addition, the post-combustion hot gas distributions were visualized by using Schlieren photography technology in the model space, compared with the FDS simulation result and thermocouple recorded temperature. A verification method in the model experiments is established to determine if the numerical simulation results are reasonable.

This paper aims to provide a brief summary of the effectiveness and efficacy of tobacco harm reduction (THR). THR is the substitution for cigarettes of low‐risk alternatives, including Swedish or American‐style smokeless tobacco, pharmaceutical nicotine products, and electronic cigarettes. The paper then very briefly summarizes the current social and political situation regarding THR.

This paper is a review of the evidence.

The risk from smoke‐free tobacco/nicotine products is so low as to be unmeasurable. For most smokers, adopting THR is a lower risk option than to trying to become nicotine abstinent. THR products have been widely adopted in some populations, providing great public health benefits. There is currently an explosion of interest in electronic cigarettes. However, THR is a threat to the business model of the tobacco control industry, and so they are fighting hard to discourage it. Because they cannot admit their real motives for discouraging THR, anti‐THR activism is an entirely dishonest enterprise.

Tobacco harm reduction is the greatest untapped public health initiative in the developed world. It is more promising than further attempts to promote tobacco/nicotine abstinence. The future inevitably includes a large portion of the population using low‐risk tobacco/nicotine, but anti‐THR efforts might keep people smoking in the short run.

While most of the content of this paper is well known to experts on THR, many ostensible experts on health, as well as other opinion leaders and policy makers, are unaware of the truth.

The purpose of this study is to examine a Midwest university in North America over a one‐year period on current smoking policies and programs, student support for implementing additional smoking policies, and to produce a follow‐up report on supporting policies that were approved by administration.

The researchers used a convenience sample from a four‐year public university located in the Midwestern USA. A four‐year public university is a publicly funded institution of higher learning awarding baccalaureate, Master's and doctoral degrees. Data were collected from administrators (n=6) and on Assessment Day of all freshmen (n=1,743) and juniors (n=643) at the university. Data were collected through document mining, a survey instrument, interviewing, and observation. Descriptive statistics were used to summarize frequency data for this study.

The data produced some interesting findings. First, the study provided college administrators with a model to follow in moving forward in developing policies for their students, faculty and staff. Second, the study offered support for implementing practical policies which may save the universities money, while protecting students, faculty, and staff from harmful environmental tobacco smoke (ETS). Finally, the study addresses the need of the university to implement and enforce policies on campus that will embrace tobacco control.

The implications of this study are that other universities may utilize the steps involved in this study to move forward in developing policies for their employees, universities may utilize this information by stressing that students are less likely to begin smoking if the university or campus offers smoke‐free resident halls and apartments, and fire safety is increased by banning smoking in resident halls and apartments.

Embraces more comprehensively than previously the situation, treatment and future research regarding smoking among college students in the USA.

In his introductory remarks the Medical Officer briefly comments on the war in its relations to medical practice and public health. He reminds us that Japanese action, by depriving us of quinine, encouraged research for synthetic substitutes. Again, penicillin and D.D.T. were given attention that they, possibly, would not otherwise have had. Food standards, long urgently needed, have been established for many important foods. He further points out that “adequate finance and international scientific co‐operation” has aided atomic research. These remarks make an exceedingly appropriate introduction to what immediately follows. The Borough of Leigh has an area of 6,359 acres, that is ten square miles. The population is 45,317, or about 4,500 to the square mile. It lies in the centre of one of the greatest manufacturing districts in the world. This district includes Manchester, Liverpool, Bury, Wigan and other places whose names alone suggest intense industrial activity. Leigh, therefore, densely populated and taking an active part in this industrial activity, presents the special health problems that are always to be found in places where nature has been subordinated to the needs of industry. One of these problems, and by no means the least important one, is atmospheric pollution caused by the smoke of domestic fires and of factory fires. It is as old as any and it is still unsolved. It is but one of the many attempts that have been made in the past to better public or domestic hygiene. Weak or faulty administration or the lack of compulsory powers have enhanced difficulties, already considerable, when confronted with actively expressed popular prejudice, or worse still with the apathy of ignorance, or the opposition arising from vested interests. To enforce Acts of Parliament or regulations under such conditions was in some cases an almost impossible task. Thus the report states that the Manchester and Regional Smoke Abatement Committee is now functioning again—its work was suspended during the war. “It is a voluntary association of local authorities… and acts in an advisory capacity.” It seems that out of 91 local authorities—including two County Councils—sixty‐eight have joined or resumed their previous membership of the Regional Committee. Since only fifty‐three out of ninety‐one were pre‐war members the increase of membership from about 54 to 78 per cent. of the possible membership is taken to indicate that greater interest is being taken in the problem of smoke abatement. Just so. But why not the full possible membership? We can to a certain extent understand this if the powers of the Committee are merely advisory and they have to deal with some who have “urged that smoke means work, the inference being that the greater the degree of pollution the higher will be the level of employment.” Again, we arc told that the Manchester Corporation Bill proposes to create a smokeless zone in the centre of the city. The proposal to create such zones has been “criticised on the grounds that the area they comprise will still be subject to pollution from outside sources.” Of course they will! Who in the world doubts it? But we submit that a beginning should be made somewhere, somehow, and somewhen. A committee which can act only in an advisory capacity would have little influence on people who use perverted reasoning to justify conditions that the committee has been created to suppress. Some years ago, before the war brought everything to a standstill, the foul state of the Ribble, Mersey and associated streams engaged the attention of local authorities. It might, with as much reason, be urged that polluted streams were in like case. Hence fouled air and fouled streams are indications of and inseparable accidents of industrial success! The matter in some respects inclines slightly to the humorous side. Not so the following. The Medical Officer says “the high infant mortality and general death rates, together with the high incidence of respiratory diseases associated with atmospheric pollution of our industrial areas should be sufficient in themselves to dispel any attitude of complacency or apathy towards this problem.” We do not suggest Leigh is any better or any worse on the whole than any other industrial area in this respect. The old tag ex uno disce omnes seems to fit the case. The report calls attention to the following facts. That 70,000 tons of carbon black is discharged into London air every year, and its value is £40 a ton. That the Department of Scientific and Industrial Research in their report of 1945 on atmospheric pollution in Leicester point out that pollution from our industrial areas spreads all over England. That twice as much smoke is made from domestic fires than from industrial fires. That in burning coal in an ordinary grate only about one‐fifth of the coal is used to supply heat and that half a hundredweight per ton of coal used goes up the chimney as smoke. All this waste can be expressed with a fair approach to accuracy in terms of weight and monetary units. The Meteorological Office and later the Department of Scientific and Industrial Research have issued annual reports for the past twenty‐five years on this matter and Health Authorities and Public Analysts have done much the same thing. This scientific co‐operation has led to a great accumution of exact knowledge, and “all that is required for success is the application of this knowledge.” And this knowledge has not been adequately applied. Material waste and damage by smoke‐polluted air can be assessed in ordinary units. Waste of and damage to life cannot be so estimated. Mind and body suffer. Ill health, weakened physical powers, and resulting mental distress and impaired efficiency can, we suppose, only be duly appreciated by members of the medical profession whose duties bring them into personal touch with the patients. Vital statistics and bills of mortality but imperfectly reveal the truth. If atmospheric pollution had “impeded the war effort”—in the way in which that expression was usually taken to mean—adequate finance and scientific co‐operation would undoubtedly have been forthcoming, even perhaps to the extent of writing smoke abated for smoke abatement. Enemy action was sporadic and temporary. Smoke pollution has acted without haste but without rest for a hundred years and more. It is still acting as a persistent and contributory cause of ill‐health. At a time when enhanced national efficiency is declared to be an essential condition of national recovery and success this statement of responsible medical opinion should, like others of the same kind, receive practical and prompt consideration. However quickly the evil may be effectually dealt with, even if that were done to‐morrow, there still would be the time lag, and years must pass before the after effects have become eliminated. Nationalisation of all kinds is very much to the fore. “It would be wise,” says the Report, “to regard the problem as already calling for action on a national scale.” These it is suggested would include adequate supplies of standardised domestic and industrial equipment for burning smokeless fuels, and the revision of the powers of local authorities in whose hands the matter at present rests. While we are in full agreement with these suggested remedies the difficulties of applying them are obviously very great and the work of a generation if the authors of the fantastic objections already alluded to and possibly others of a like way of thinking have any real say in the matter.

The purpose of this paper is to explore the use of chewing tobacco by South East Asian men in Auckland and their difficulty in giving up the habit.

Semi‐structured interviews with ten men were conducted in a grounded theory case study design. Snowball sampling was used to identify and recruit participants from hard‐to‐find populations. Written consents were obtained.

Each of the men attributed their initiation to chewing tobacco to the influence of friends and the society in which they lived. They all were aware that chewing tobacco could increase their risk for oral cancer and wanted to quit. New Zealand law prohibits the import and sale of oral forms of tobacco. However, the men in this study were still able to get chewing tobacco via friends and family bringing it into the country “for personal use”.

This paper opens up a space for further research within the South East Asian communities, with the view to identifying and developing effective cessation methods.

This paper is significant as there has been minimal research conducted on the pervasiveness of chewing tobacco in the South East Asian communities in New Zealand.