August 8, 2013
Many people have asked me what I thought about the report "Peering through the mist: What does the chemistry of contaminants in electronic cigarettes tell us about health risks?" that being publicized by the e-cig advocacy group CASAA.
This paper uses the same approach to risk assessment that I remember from risk assessments done of secondhand smoke years ago by tobacco industry apologists that concluded that secondhand tobacco smoke could not produce any adverse health effects.
August 7, 2013
Brett Loomis and colleagues just published an interesting paper, "The Economic Impact of Smoke-Free Laws on Restaurants and Bars in 9 States," that adds to the already considerable evidence that these laws have no effect or are good for the hospitality business.
Here's the abstract:
Introduction
Smoke-free air laws in restaurants and bars protect patrons and workers from involuntary exposure to secondhand smoke, but owners often express concern that such laws will harm their businesses. The primary objective of this study was to estimate the association between local smoke-free air laws and economic outcomes in restaurants and bars in 8 states without statewide smoke-free air laws: Alabama, Indiana, Kentucky, Mississippi, Missouri, South Carolina, Texas, and West Virginia. A secondary objective was to examine the economic impact of a 2010 statewide smoke-free restaurant and bar law in North Carolina.
August 5, 2013
Casinos throughout the country are often exempt from smoke-free workplace laws. Now a new study led by UC San Francisco has found that when smoking is banned in casinos, it results in considerably fewer emergency calls for ambulances.
The study is the first to examine the health impact of smoking bans in casinos.
The authors conclude that if smoke-free laws were to apply to casinos as well as other businesses, it would prevent many medical emergencies and reduce public health costs.
“Our study suggests that exempting casinos from smoke-free laws means that more people will suffer medical emergencies as a result,” said lead author Stanton A. Glantz, PhD, UCSF professor of medicine and director of the Center for Tobacco Control Research and Education at UCSF.
“The research shows strong evidence of a significant drop in ambulance calls due to less secondhand smoke exposure,” Glantz said. “Inhaling secondhand smoke increases the likelihood of dangers with blood clots and makes it more difficult for arteries to expand properly – changes that can trigger heart attacks. Legislative and tribal exemptions for casinos, which are all too common, are potentially putting employees and customers at risk of secondhand smoke exposure.”
August 3, 2013
The Mayo Clinic just published an excellent answer in the Chicago Tribune in response to question by smoker who is considering using nicotine inhaler or e-cigs to help quit smoking. The Mayo Clinic explained that e-cigs contain toxic substances, do not deliver a controlled amount of nicotine, are not regulated, are not effective in helping people quit smoking, and not enough is known about safety of e-cigs. They recommend nicotine inhaler and not e-cigs. The full question and response is here.
July 29, 2013
E-cigarette supporters are fond of quoting a risk assessment, "Comparison of the effects of e-cigarette vapor and cigarette smoke on indoor air quality," by McAultey et al (Inhalation Toxicology 2012; 24(12): 850-857) as evidence that e-cigarettes are safe. Indeed, the last sentence of the abstract states, "This study indicates no apparent risk to human health from e-cigarette emissions based on the compounds analyzed."
I've gone back and re-read the paper again together with the online supplemental material and found lots of problems, including the fact that they did not detect any benzo(a)pyrene in the conventional cigarette smoke despite the fact that it has been established for over half a century that benzo(a)pyrene is an important carcinogen in cigarette smoke and that they way they did their "risk assessment" is not described in any detail.
The most amazing conclusion in the paper (on page 855, second column, 11 lines from the top), however, is that “neither vapor from e-liquids or cigarette smoke analytes posed a condition of ‘Significant Risk’ of harm to human health via the inhalation route of exposure."