Waterpipe tobacco smoking impact on public health: implications for policy

Abstract

Background: Given the increasing evidence of its negative health effects, including contributions to both infectious and chronic diseases, waterpipe tobacco smoking raises public health concerns beyond even those presented by traditional smoking.

Methods: Identification of Clean Indoor Air Acts (CIAAs) from each of the 50 United States and District of Columbia were retrieved and examined for inclusion of regulatory measures where waterpipe tobacco smoking is concerned. Several instances of exemption to current CIAAs policies were identified. The cumulative policy lens is presented in this study.

Results: States vary in their inclusion of explicit wording regarding CIAAs to the point where waterpipe tobacco smoking, unlike traditional smoking products, is excluded from some legislation, thereby limiting authorities’ ability to carry out enforcement.

Conclusion: Consistent, comprehensive, and unambiguous legislative language is necessary to prevent establishments where waterpipe tobacco smoking occurs from skirting legislation and other forms of regulatory control. Stricter laws are needed due to the increasing negative health impact on both the smoker and the bystander. Actions at both the federal and state levels may be needed to control health risks, particularly among youth and young adult populations.

Introduction

More than a decade ago, tobacco smoking was identified as the leading actual cause of death and disease in the US.¹ In the US, tobacco smoking occurs with traditional cigarettes, cigars, pipes, and more novel devices called hookahs or waterpipes. In other parts of the world, these alternative methods may be referred to as hubble-bubble, nargeela, nargileh, argeela, arghileh, okka, kalian, ghelyoon, ghalyan, boury, or gouza.² Waterpipe tobacco smoking is a form of social smoking that involves smoking flavored tobacco called "shisha" or "ma'ssell." Shisha most often comes flavored in attractive packages laden with colorful and esthetically pleasing pictures that foster its appeal. The US tobacco companies produce more shisha than ever before, and its sales account for an increasing proportion of tobacco revenue. The waterpipe device consists of a clay pot that holds the foil-covered shisha over a glass bowl of water at the base through which the smoke bubbles before entering a plastic hose and mouthpiece where the smoker inhales. Charcoal is lit on top of the perforated foil-covered shisha and serves as the heating element for "baking" the shisha. Shisha is then vaporized and passed through the water basin in the form of smoke. A typical waterpipe tobacco session may last ~45 minutes and involves socialization among a number of individuals who share a hose and pipe.

Waterpipe smoking has an extensive history and originated in India over 400 years ago.³ Over the past 20 years, a revival of waterpipe usage occurred and spread from northern Africa and Southeast Asia to Europe and North America. The lack of knowledge concerning negative health effects of waterpipe tobacco smoking may have contributed to the spread of use, as well as the popularity of flavored tobacco.^4,5 This revival has led to increased use among youth and young adult populations statewide and nationally,^6–8 where prevalence rates range from 15% to 48%.^9–12 From 2011 to 2014, waterpipe tobacco use doubled,¹² accompanied by corresponding public health concerns.

From an acute health perspective, there exist concerns related to infectious disease transmission. This concern is novel to waterpipe tobacco smoking as opposed to traditional smoking because of the sharing or passing around of a common mouthpiece in waterpipe smoking. Infectious disease transmission is likely due to the sharing of mouthpieces that currently lack device-cleaning regulations within waterpipe smoking establishments. Concerns of infectious diseases leading to respiratory illness are legitimate due to waterpipes being a warm medium for the growth of bacteria. According to Safizadeh et al:¹³

Of 285 samples from different parts of the waterpipes, 236 (82.8%) showed positive cultures; the rate of contamination ranged from 69% in the fixed mouthpiece to 96% in bowl water.

Both Gram-positive and Gram-negative isolates have been cultured from waterpipes with the majority being Micrococcus, Corynebacterium, and Bacillus.⁴ Streptococcus is the most common bacterial agent in community-acquired pneumonias.¹⁴ Additionally, aspergillosis and tuberculosis have been linked to waterpipe smoking.^15,16 There could be transmission of other pathogens, including hepatitis C, herpes simplex, and Epstein-Barr virus.¹⁷

Emissions from the burning charcoal may affect not only the smoker but also workers in waterpipe smoking establishments and other patrons who may not be smoking waterpipe tobacco directly. The charcoal produces heavy metals and carbon monoxide (CO) that are inhaled by the smoker.^18,19 CO is a specific concern with respect to waterpipe tobacco smoking (with or without tobacco) because of the high levels in which it is present.^20–22 High CO levels arise from charcoal combustion, and some reports suggest that the CO can be 30 times higher for waterpipe smokers than for cigarette smokers.²³ At least six cases of CO poisoning as a consequence of waterpipe tobacco smoking have been documented with carboxyhemoglobin levels in the range of 20%–30%.²⁴ Carbon monoxide has the ability to replace oxygen-binding sites in the body and impair oxygen delivery to the tissues. Emergency room visits document cases of carbon monoxide toxicity that have required several hours of care and provision of oxygen and other health care services.²⁵ Furthermore, tests on patrons exiting waterpipe smoking establishments demonstrate that they have elevated levels of carbon monoxide.^21,22

In addition to these fairly immediate consequences, waterpipe tobacco smoking has been associated with chronic diseases. Smoke from a waterpipe contains carcinogens from the aldehyde groups such as formaldehyde and acetaldehyde and, compared with factory-made cigarettes, significant amounts of polycyclic aromatic hydrocarbons (PAHs), notably benzo[a]pyrene.²³ PAHs act both as tumor initiators and co-carcinogens.²⁶ For instance, they have been linked to lung cancer and lip cancer.^27–29 Additional chronic conditions related to cardiovascular disease and pulmonary function changes exist among waterpipe tobacco smokers.^30,31

These health risks notwithstanding, youth and young adults perceive waterpipe use as less harmful than cigarette smoking, and this perception can lead to an increased social acceptance.³² Other reasons for smoking waterpipe tobacco include relaxation, pleasure, and entertainment.³³ Myslin et al³⁴ found hookah-related messages (ie, tweets) via social media were predominantly positive in nature (unlike tweets about more traditional tobacco products) and reflected constructs they categorized as representing sociability, pleasure, and favorable social image. Waterpipe tobacco smoking is most prevalent in the 18–24-year-old age group and in regions where smoke-free legislation is well established and smoking traditional cigarettes has declined.³⁵ Consequently, representations employing social media may encourage people in this age group to try waterpipe tobacco smoking. An additional research supports the claim that waterpipe's marketing places it in a much more positive light than cigarettes, adding further to its allure.³⁶

Creamer et al³⁷ reported that use of non-cigarette products among high-school-aged youth coupled with concurrent use of traditional tobacco products may be on the rise. If their estimates of dual use are accurate, such a development should raise additional concerns about tobacco's never-ending health burden. An additional evidence from Jamil et al³⁸ showed waterpipe smoking occurred in 19% of their sample of Michigan adults: 10% hookah only and 9% hookah plus cigarettes; moreover, nearly one in five survey respondents believed hookah smoking was less harmful than smoking cigarettes. Given what is known about infectious acute diseases, environmental impact, and chronic disease issues related to waterpipe tobacco smoking, it is essential for public health advocates to initiate emphatic discussion on how best to inform policy to include control of waterpipe tobacco smoking.

Policy for waterpipe tobacco smoking use

Concerted efforts to educate the public about the negative effects of traditional cigarette smoking and to deter this behavior have made significant progress over the past several decades, so much so that the norm is clearly in the direction of not smoking. The concern of secondhand smoke exposure is now understood by the public and was highlighted in the Surgeon General's Report on smoking and health.³⁹ Awareness and concern not only for the health of smokers but also those exposed to secondhand smoke have led to an increase in smoking restrictions from standalone organizations to state enactments. In 2014, as an extension to the 2009 Family Smoking Prevention and Tobacco Control Act, the US Food and Drug Administration (FDA) proposed to extend its regulatory capacity to additional tobacco products. Hookah or waterpipe tobacco will be subject to the FDA regulations that include registering with the FDA and reporting ingredients, having the FDA review new products, requiring claims of reduced risk and public health benefit be confirmed by scientific evidence, and prohibiting the distribution of free samples.⁴⁰

Compared with traditional smoking, waterpipe tobacco smoking is a relatively novel form of smoking. In the US, its popularity has been primarily among youth and young adults.³⁵ The Centers for Disease Control and Prevention has indicated an increase in waterpipe smoking among US young adults.⁴¹ Despite the increase in waterpipe smoking, there has been a dearth of educational material and campaigns focused on deterring the behavior. The World Health Organization (WHO) Framework Convention of Tobacco Control stresses the importance of education of harm, clear package content labeling, and prohibition of waterpipe tobacco smoking in areas where cigarettes are banned. The WHO recommends that "education … is urgently needed about the risks of waterpipe smoking, including high potential levels of secondhand exposure." Moreover, "waterpipe smokers and second-hand smokers [are] at risks for the same kinds of disease as are caused by cigarette smoking, including cancer, heart disease, respiratory disease, and adverse effects during pregnancy."⁴²

Given the scientific evidence of harmfulness obtained over the past several decades surrounding tobacco use and secondhand smoke, there is an increasing number of states instituting rules and regulations to support and expand existing clean indoor air laws and legislation that include waterpipe smoking establishments.

In this study, we conduct a policy review of current clean indoor air act (CIAA) legislation at the state level, as well as identify legislation pertaining specifically to waterpipe tobacco smoking. To complete this review, we examine state-by-state policy with waterpipe use and allowable exposure. This review provides valuable information for current legislative initiatives and has implications for needed future waterpipe tobacco smoking policy.⁴³ In particular, we address the following research questions.

1. Does the state have a CIAA?

2. If the state has a CIAA, is waterpipe tobacco smoking clearly included?

3. If the state has a CIAA, is waterpipe tobacco smoking clearly exempt?

4. Does the CIAA define retail tobacco store or tobacco specialty retail store? If yes, is hookah/waterpipe establishment included in this definition?

5. Is there a connection between prevalence rates and policy?

Methods

Our review of CIAA legislation and waterpipe tobacco policy inclusion accessed the official websites for both the state legislatures and the departments of (public) health for each state. These websites were examined to assess the existence/nonexistence of a state CIAA. Examination of websites took place from September 2014 to April 2015. We explored waterpipe tobacco exemptions and waterpipe policy options that promote smoke-free environments and decreased use of waterpipes in restaurant settings. Despite the increase in waterpipe tobacco use among young adult and college-aged youth and the concomitant environmental exposure to the contaminants of smoke, businesses often circumvent the CIAA.

The statute of each state and the information pertaining to the research questions, as well as additional information (such as the definition of tobacco per state statute and whether or not hookah, shisha, and waterpipe are included), were prepared in the policy overview tables. In addition to the state CIAAs, information from other regulating agencies such as the departments of business and professional regulation was reviewed to determine if these separate entities regulated waterpipe establishment licensing in the absence of state regulations. We searched LexisNexis to verify state legislation in the event that it could not be found on either the state legislature or public health website. Two researchers independently confirmed any updates from the initial policy search and confirmed current information. A summary is provided in Table 1. The Supplementary materials contains a detailed version of state findings.

Table 1 Summary of waterpipe regulation or exemption mentioned in the CIAA or other state statute Abbreviation: CIAA, Clean Indoor Air Act.

Results

Evidence of clean indoor air legislation

There is much variability in legislation across the US pertaining to smoking restrictions. However, all US states have some form of a CIAA with the exceptions of West Virginia and Wyoming. Eight states (Alabama, Alaska, Kentucky, Mississippi, Missouri, Oklahoma, South Carolina, and Texas) have CIAAs that pertain only to government-owned buildings and property. This leaves legislation at the local level void of preemption and subject to organizational policy.

Definition of smoking

Definitions of the act of smoking vary from state to state, with simple references such as "burning" or "puffing" or "possession" to more detailed ones such as "inhaling, exhaling, burning, carrying, or holding." All states with definitions refer to a "lighted" device with device details varying from state to state. Nine states (Alaska, California, Nevada, Oregon, Oklahoma, South Carolina, South Dakota, Texas, and Vermont) have a CIAA in place but do not define the act of smoking. Oklahoma law describes smoke and secondhand smoke but not the explicit act of smoking itself, and Vermont includes "intention" in the device description. Additionally, three states (Alaska, Nevada, and South Carolina) do not identify the devices. With novel devices and products constantly being developed, it becomes challenging for legislation verbiage to be all-inclusive of delivery devices and mechanisms.

Waterpipe tobacco prevalence

Findings from the National Adult Tobacco Survey indicate that the four states with the highest prevalence of waterpipe tobacco smoking ever-use are Nevada, California, Colorado, and New Mexico.³⁵ However, ever-use in the District of Columbia exceeds all four of these states, and waterpipe lounges are not mentioned directly in the law.³⁵ California, Oregon, and Nevada do not define smoking in their legislation. New Mexico has exemptions for waterpipe establishments. The lowest rates of ever-use of waterpipe tobacco smoking were found in West Virginia, where there is no CIAA, as well as in Alabama, North Dakota, Mississippi, South Carolina, and Nebraska.

Device and product smoked

Although some states mention "pipe tobacco" in their CIAAs, this language becomes subject to interpretation as do the actual devices that burn waterpipe tobacco. For instance, newer devices are being used to smoke waterpipe tobacco that deviate from the traditional water bowl and pipe designs. If legislation neither refers specifically to tobacco nor to waterpipe tobacco, then the legislation is subject to interpretation. Additionally, there are waterpipe establishments that sell tea leaves and other nontobacco products. Although these leaves do not contain tobacco, they are fraught with carcinogens, if smoked, as well as an ability to generate carbon monoxide.⁹⁵ States have legislation verbiage that may help to cover these types of issues by listing "… other lighted combustible plant material" similar to the CIAA definition provided by Arkansas, Minnesota, Hawaii, and Louisiana. New Jersey legislation makes the definition even more far reaching by stating "any other matter that can be smoked", and North Dakota states "… or plant product intended for inhalation, in any manner or in any form."

Another option for policymakers to cover devices and products is seen in Illinois legislation that declares "… or any other lighted smoking equipment." This particular choice of language implies an assumption that future devices will require lighting. Waterpipe tobacco smoking in particular has avoided legislation that included the burning of tobacco because with the traditional waterpipe devices, the charcoal that sits atop the foil-covered tobacco is lit rather than the waterpipe tobacco itself.

Waterpipe tobacco inclusion in CIAA definition

Specific wording in the CIAA state definitions is lacking. There are only a few states that mention the word hookah or waterpipe. Utah includes "hookah" as part of its definition in the CIAA stating "cigar, cigarette, pipe, or hookah," and Maine includes "other object giving off tobacco smoke" in its definition and further goes on to define waterpipe or hookah. Connecticut includes "waterpipe, hookah, or similar device" in its legislative definition. Importance in describing the nature of the smoking, the product being smoked, and the delivery device as broadly as possible may enable legislation to be responsive, effective, and long-lasting as new products (eg, e-cigarettes) are introduced to the marketplace.

Exemptions

Although tobacco products may be included in legislative definitions, waterpipe establishments have become exempt from CIAAs based on their being structured as tobacco business/retail stores. Depending on the interpretation of the law and the structure of the business, 24 states have an exemption for waterpipe establishments: Alabama, Alaska, Arkansas, Colorado, Georgia, Hawaii, Idaho, Iowa, Louisiana, Florida, Maryland, Massachusetts, New York, North Carolina, New Mexico, Nebraska, Nevada, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, and Tennessee. Utah has exemptions but only for waterpipe smoking establishments with a sunset date of July 2017. Exemption of waterpipe tobacco use in these states allows waterpipe usage where smoking or tobacco usage is banned.

Another 14 states have a "percentage of sales requirement" for tobacco products, thereby enabling waterpipe smoking establishment exemption to occur; moreover, this percentage varies considerably from state to state. These states and their respective sales requirements are Arizona (51%), California (60%), Connecticut (10%), Illinois (80%), Indiana (85%), Kansas (65%), Maine (60%), Michigan (75%), Minnesota (90%), Missouri (50%), New Jersey (51%), North Carolina (75%), South Dakota (65%), and Wisconsin (75%). Consequently, marketing waterpipe smoking is proving beneficial for some establishments in certain states. It is unclear if the District of Columbia and Alaska have exemptions in place for waterpipe smoking establishments. Clearly, the existing legislation in more than half of the states has the potential to exempt waterpipe smoking establishments from their CIAA.

Other states such as South Carolina, Texas, and Vermont do not list tobacco stores as public places that are included in their CIAA; therefore, they may be exempt. Delaware, New Hampshire, North Dakota, Montana, and Vermont are the only states that have a CIAA and do not have visible exemption loopholes. Washington has no exemption for tobacco retail stores.

Discussion

Clean air indoor laws have been instituted around the USA to improve air quality for the good of the public's health. Increasing scientific evidence has provided information that waterpipe smoking is not a safe alternative to traditional cigarette smoking and carries many secondhand risks similar to ones pertaining to traditional cigarette smoking.⁹⁶ The WHO recommends that "waterpipes should be prohibited in public places consistent with bans on cigarette and other forms of tobacco smoking."⁴² Such recommendations notwithstanding, not all US states have adopted a CIAA and clearly not all venues are covered under some regulatory actions. Increasingly, however, smoke-free indoor air ordinances are being proposed and implemented.

Direct exposure to waterpipe smoking contributes to selected infectious diseases and certain chronic conditions; moreover, the effects of secondhand smoke exposure contribute to or exacerbate some chronic diseases, especially ones of a respiratory nature.⁹⁷ Exposures to both the smoker and bystander have significant implications for CIAA legislation. Following are identified points in effectively developing waterpipe tobacco legislation:

1. Tighten up policies to disallow waterpipe establishment loopholes and exemptions

2. Clear wording in statewide policies to include tobacco smoked using waterpipes

3. Regulations on packaging contents for consumers

4. Information on negative health effects on packaging

5. Elimination of packaging that contains luring fruit pictures

6. Information on known negative health effects displayed in waterpipe establishments

7. FDA regulations on secondhand smoke exposure from waterpipe tobacco smoking

8. Regulation on cleaning of waterpipes in bars/cafes/restaurants

9. Occupational Safety and Health Administration regulation on air quality of waterpipe establishments for workers.

Policy can have a broad impact on reduction of rates of smoking when it manifests with clear and unambiguous regulatory language. Waterpipe tobacco smoking establishments, as well as tobacco shops, have managed to avoid state clean indoor air laws that are not inclusive of specific and unambiguous language. A legal concern related to waterpipe tobacco smoking is whether or not it is included in CIAA legislation.⁹⁸ Some states exempt waterpipe smoking establishments from the CIAA, whereas others include waterpipe tobacco smoking verbiage specifically. Oregon, for example, experienced negative effects in tobacco control program costs and diversion from their evidence-based programmatic focus by lacking clear definitions of "sampling" and waterpipe tobacco shops being included under the umbrella of a smoke shop.⁹⁹ Whether current state-wide legislation effectively covers waterpipe smoking establishments is subject to interpretation. Overarching federal legislation would serve to minimize loopholes and maintain consistency across all states. Federal legislation would have a broader impact of protecting the public's health from this known danger.

Conclusion

Smoke-free environments not only protect people from secondhand smoke exposure but also increase the normative behavior of not smoking. By doing so, cessation is promoted and youth and young adults may be less inclined to partake in waterpipe tobacco smoking. Waterpipe smoking establishments encourage a community social norm and a perception of acceptance.¹⁰⁰ Our study findings demonstrate that waterpipe tobacco smoking regulatory control in many venues is misaligned with the evidence base regarding the disease effects of waterpipe smoking for both users and the non-users who share the waterpipe smoking environment. Few states actually identify waterpipe smoking use as a health hazard. Public health advocates must be vigilant with waterpipe tobacco smoking, its various delivery mechanisms, as well as other emerging tobacco-related devices. Current policies appear to be ineffective at limiting or discouraging waterpipe "ever-use" among 18–24-year-olds,³⁵ the most vulnerable age group in the US for the uptake of waterpipe tobacco smoking. Future studies should examine state-to-state prevalence of waterpipe smoking establishments, particularly ones occupying areas in proximity to colleges and universities, to determine the relationship between waterpipe tobacco smoking in this population and placement of these establishments.

Acknowledgments

We acknowledge the work of two public health students Jamie McGrogan and Alisha Maysonet for their devoted efforts in reviewing and updating the policy table.

Disclosure

The authors report no conflicts of interest in this work.

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