- See also tobacco smoking and Health effects of tobacco smoking
- "Second Hand Smoke" redirects here. For the Sublime album, see Second-hand Smoke (album)
This photo illustrates secobd hand smoke smoke in a pub, a common complaint from those concerned with passive smoking
Passive smoking (also known as involuntary smoking, secondhand smoking, or Environmental Tobacco scond hand smoke secon hand smoke Smoke) occurs when the smoke from one person's burning tobacco product (or the seccond hand smoke smoker's exhalation) is inhaled by others. There is controversy surrounding the health risks of long second handsmoke term exposure to second hand smoke, but the most recent studies second hand smok confirm the health risks. In 1992, Passive smoke was classified as a Group A carcinogen, which means second had smoke it is known to cause cancer in humans. Passive second hand smoke smoking is one of the key issues leading to smoking bans in workplaces, smoke-free restaurants, and public places.
- 1 Short-term effects
- 2 Long-term effects
- 2.1 Epidemiological can you test positive for thc from second hand smoke studies of passive second hand smoke statistics smoking
- 2.2 Studies of passive smoking in animals
- 2.3 Risk level of passive smoking
- 3 Environmental positive thc from second hand smoke Tobacco Smoke and Particulate Matter Emission
- 4 Controversy
- 4.1 Enstrom drug test second hand smoke and Kabat
- 5 Tobacco health hazards of smoking and second hand smoke a time industry response
- 6 Smoking bans
- 7 Notes
- 8 External side effects of second hand smoke links
Some non-smokers are able to stay in a room with second hand smoke asthma smokers for quite some time and notice little or hydrogen cyanide in second hand smoke no effects. For others, however, just a few minutes or an hour of exposure can make them feel quite research on second hand smoke ill. Persons with asthma second hand smoke and pets can experience attacks brought on by smoking, and by passive smoking  whether second hand smoke risks they are adults or children(, , , supporting dangers second hand smoke calls for a smoking ban).
Tobacco smoke is an allergen, and allergy sufferers can experience stuffy, runny facts about second hand smoke noses, watery eyes, sneezing, coughing, wheezing, second hand smoke and babies and all the other typical allergy symptoms within minutes of exposure. second hand smoke from cigarettes Some people with no known allergies and without asthma may cough in smoke-filled rooms, get headaches, second hand smoke from pot feel nauseous, feel sleepy, and experience second hand smoke junk science other ill effects. Many former smokers, and those who are trying to quit do not like effect of second hand smoke to be around smoke as it can cause them to have cravings. Some people simply do not like the odor, which clings to second hand crack cocain smoke hair and clothing.
Many of these second hand smoke video short-term effects terminate after the exposure ends. Repeated surgeon general's report on the dangers of second hand smoke exposure, however, is believed to cause more serious long-term effects.
A wide array of why is second hand smoke a health problem negative effects are often attributed, in whole or in part, to frequent, long term legal cases against second hand smoke exposure to second hand smoke. The extent to which the poisonous gases and chemicals and second hand smoke smoke influences the development of these negative effects is the subject of much debate and controversy. problem of second hand smoke Some of the symptoms which have been or are frequently attributed to second hand smoke include:
- Increased risk second hand marajuana smoke of lung cancer
- The effect of passive smoking second hand smoke and children's health on lung cancer has been extensively studied. Studies from the USA (1986, , 1992, 1997, 2001, 2003 ), Europe (1998), the second hand smoke and smoking UK (1998, ), and Australia (1997) have consistently shown tenant rights second hand smoke a significant increase in relative risk among tenant rights second hand smoke nebraska those exposed to passive smoke.
- Increased risk breathing neighbors second hand smoke of cancer 
- Increased risk of heart disease 
- Increased risk of miscarriage and birth defects 
- Increased risk comments of students on second hand smoke of SIDS (Sudden Infant danger of second hand smoke Death Syndrome) 
- Increased risk of developing asthma, both for children and adults 
- Learning difficulty in children
- Increased risk of behavior problems in children, such as depression, anxiety and immaturity. (http://web.ebscohost.com.proxy-bc.researchport.umd.edu/ehost/detail?vid=23&hid=14&sid=77b4eba7-34a7-41c4-8a00-99cae6a629cf%40sessionmgr2)
- Increased risk deth certificates of people who died from second hand smoke of lung infections
- Increased risk of ear infections
- Increased risk effects of second hand smoke on children of allergies in children
- Worsening of asthma, allergies, and other conditions
Although the nature of passive smoking makes study design marijuana and second hand smoke and urine test problematic, meta-analyses from around the world suggest that dangers of passive smoking are significant.  
Passive smoking kills about 53,000 reduces second hand smoke quickly nonsmokers per year, making it the 3rd leading cause of preventable death in the U.S.
Epidemiological studies report on second hand smoke of passive second hand smoke and health smoking
Epidemiological studies suggest that non-smokers exposed to secondhand smoke are at risk for many of the second hand smoke and seventh month pregnancy health problems associated with direct smoking.
In 1992, the Journal of the American Medical Association published second hand smoke baby a review of the evidence available from epidemiological and other studies regarding second hand smoke cause sids the relationship between secondhand smoke and heart disease and estimated that passive smoking was responsible for 35,000 to 40,000 deaths second hand smoke deaths per year per year in the United States second hand smoke during pregnancy in the early 1980s. Some studies make the claim that non-smokers living with smokers have second hand smoke party about a 25 per cent increase in risk of death from heart attack, are more second hand smoke picture of child's lung likely to suffer a stroke, and can sometimes contract genital cancer. Some second hand smoke related deaths research, such as the Helena Study, suggests that risks to nonsmokers may second hand smoke reports be even greater than this second hand smoke the truth estimate. The Helena Study claims that exposure to secondhand smoke increases the risk second hand smoke through touch of heart disease among non-smokers by as much as 60 percent.  Parents who smoke appear to be a risk second hand smoke truths factor for children and babies and are associated with significance of primary and second hand smoke to bronchitis low birth weight babies, sudden infant death syndrome (SIDS), bronchitis and pneumonia, and middle ear infections.
In 2002, a group of 29 experts from 12 countries convened by the Monographs Programme of surgeon general report affects of second hand smoke on hotel the International surgeon general report affects of second hand smoke on maids Agency for Research on Cancer (IARC) of the World Health Organization (WHO) reviewed all significant published evidence related thc levels second hand smoke to tobacco smoking and cancer. It concluded:
- These meta-analyses show that there is a statistically significant and consistent association articles on effects of second hand smoke between lung cancer risk in spouses of smokers and exposure benefits of second hand smoke to secondhand tobacco smoke from the spouse who smokes. The excess can second hand marijuana smoke effect a drug test risk is of the order of 20% for women and 30% for men and cause of second hand smoke remains after controlling for some potential sources of bias and confounding.
Additionally, studies assessing causes of second hand smoke passive smoking without looking at the partners of smokers have found that high overall exposure children and second hand smoke to passive smoking is associated with greater risks dangers from second hand smoke than partner smoking and is widespread in non-smokers.
The National dangers of second hand smoke and the law Asthma Council of Australia cites studies showing that: Environmental tobacco smoke (ETS) is probably the most important indoor pollutant, effectof second hand smoke especially around young children:
- Smoking by either parent, particularly by the mother, increases the effects eyes hand second smoke risk of asthma in children.14,15,<LE III-2>
- The outlook for early childhood asthma effects of second hand smoke of marijuana is less favourable in smoking households.15,<LE effects of second hand smoke video III-2>
- Children with asthma who are exposed to smoking in the home generally have more severe disease.16,<LE III-1>
- Many adults with asthma facts about second hand smoke for children identify ETS as a trigger for their symptoms.17,<LE III-1>
- Doctor-diagnosed asthma is more common among non-smoking getting rid of second hand smoke in the house adults exposed to ETS than those not exposed. hand public restaurant second smoke Among people with asthma, higher ETS exposure is harmful effects of second hand smoke associated with a greater risk of severe attacks.18,<LE III-2>
In France passive smoking has been shown how many people die from second hand smoke to cause between 3000 and 5000 premature deaths per year, with the larger how many people die of second hand smoke each year figure cited by Prime minister Dominique de Villepin during his announcement of a nationwide how to write an outline about second hand smoke smoking ban: "That makes more judge decisiion against second hand smoke than 13 deaths a day. It is an unacceptable reality in our country in terms of public health."
Studies of passive smoking in animals
Experimental studies in which animals myth second hand smoke are exposed to tobacco smoke have produced results supporting the view that exposure to secondhand or 'environmental' tobacco neighbors second hand smoke smoke is carcinogenic. The International Agency for Research on no health risks of second hand smoke Cancer expert group concluded that:
- There is limited evidence in experimental animals for the pets and second hand smoke carcinogenicity of mixtures of mainstream and sidestream tobacco smoke.
- There is sufficient evidence in experimental pictures of the second hand smoke animals for the carcinogenicity of sidestream smoke condensates.
A study conducted by the Tufts' School of Veterinary pregnant woman second hand smoke Medicine and the preventing employee exposure to second hand smoke University of Massachusetts concluded that a cat living with a smoker is two times more likely to second hand smoke + lawyer get feline lymphoma than one that is second hand smoke + risks not. After five years living with a smoker, that rate increases to three times as likely. And, when there are two smokers second hand smoke and boren in the home, the chances of getting feline lymphoma second hand smoke and fetal increases to four times as likely.
A study by Colorado State University found that a dog that second hand smoke and heart disease has exposure to a smoker in second hand smoke and lung cancer the home is 1.6 times more likely to develop lung second hand smoke and pregnancy cancer than a dog that is not exposed to a smoker. The study also found that skull shape had second hand smoke and restless leg syndrom an effect on the estimated risk of lung second hand smoke best cancer in dogs.
Risk level of passive smoking
The International Agency for Research on Cancer concluded in 2002 second hand smoke bracelet that:
- There is sufficient evidence that involuntary smoking (exposure to secondhand or 'environmental' tobacco smoke) causes second hand smoke cancer lung cancer in second hand smoke causes 3,400 lung cancer deaths per year humans.
- Involuntary smoking (exposure to secondhand or 'environmental' tobacco smoke) is carcinogenic to humans (Group 1).
Most experts believe that second hand smoke deaths moderate, occasional exposure to secondhand smoke presents a small, but measurable cancer risk to second hand smoke debate nonsmokers. The risk is considered more significant if non-smokers work second hand smoke diseases from in an environment where cigarette smoke is prevalent, although few studies bear second hand smoke effects in public areas this out.
In May 2006, the United States government's Center for Disease Control issued its second hand smoke engineer first new study on secondhand smoke second hand smoke law in 20 years. Surgeon General Richard Carmona summarized, "The health effects of secondhand smoke exposure are more pervasive than we previously second hand smoke lawsuits against employer thought. The scientific evidence is now indisputable: secondhand smoke is not a mere annoyance. It is a second hand smoke legislation serious health hazard that can lead to disease second hand smoke lesson plan and premature death in children and nonsmoking adults." second hand smoke limb damage The study estimated that living or working in a place where smoking is permitted increases the non-smokers' risk of developing heart disease by 25-30% second hand smoke lung cancer statistics and lung cancer by 20-30%. The study finds that passive smoke also second hand smoke outline causes sudden infant death syndrome (SIDS), respiratory problems, second hand smoke picture ear infections and asthma attacks in children.
Environmental Tobacco Smoke and Particulate second hand smoke smokes you Matter Emission
Environmental tobacco smoke (ETS) was shown to second hand smoke smoking health effects htm be a much higher source of pollution than an second hand smoke the band ecodiesel engine in regard to particulate matter (PM) emission. In fact three cigarettes smouldering in second hand smoke to babies a room of 60 m3 with a limited air exchange, a setting commonly encountered second hand smoke what is in it in everyday life, were able to produce PM concentrations up to 10-fold second hand weed smoke and tests that of the engine’s emissions, and up to 15-fold PM10 and PM2.5 outdoor limits, in agreement with previous data on surgeon general report on second hand smoke ETS pollution observed in the hospitality industry.
Some controversy has attended efforts to estimate the specific risk of lung cancer related to passive smoking. In 1993, thc levels from second hand smoke the US toxins in second hand smoke Environmental Protection Agency (EPA) issued a report estimating that 3,000 urine test second hand smoke lung cancer related deaths in the U.S. were caused by passive smoking every year. The Congressional Research Service issued a report that generally endorsed the findings of the study,while noting that 'a few researchers have challenged the classification of ETS as a known carcinogen'. Among those testifying in favour of the tobacco industry at the inquiry was Congressman Thomas J Bliley, who had received more than $22,900 from tobacco companies in 1993-4, and more than $53,000 from them in 1995-1996.
Philip Morris, R.J. Reynolds and groups representing growers, distributors and marketers took legal action, claiming that the EPA manipulated scientific studies and ignored accepted scientific and statistical practices. In 1998 United States District Court Judge William Osteen, a former tobacco lobbyist, vacated this study, declaring it null and void in a 92-page decision, that found that the EPA had manipulated results and violated scientific norms in order to achieve its pre-determined conclusion that passive smoke was harmful. Even though Osteen had worked as a lobbyist for the tobacco industry prior to becoming a judge, he had delivered a ruling contrary to the interests of tobacco companies in 1997 he had refused to strike down a FDA rule restricting young people's access to tobacco products.
Osteen's decision was overturned by the United States Court of Appeals for the Fourth Circuit in 2002 on the technical grounds that the report was not a reviewable agency action under the Administrative Procedure Act, and the EPA classification of tobacco was ultimately left intact. Because the substantive dispute was never resolved, the findings in Osteen's report are still used to argue that the issue of ETS is driven by politics rather than science.
Enstrom and Kabat
Two recent studies by Enstrom and Kabat conclude that the previous studies overestimated the effect of Environmental Tobacco Smoke (ETS) on both lung cancer and heart diseases.
These studies have been criticised by the American Cancer Society, which describes the study as "misinformation", on the grounds that both the original cohort and Enstrom and Kabat's follow-ups, were inappropriate for reliably determining ETS exposure, smoking history, etc. Furthermore, Enstrom and Kabat are funded by the tobacco industry..
Enstrom and Kabat have rejected this criticism, claiming that the American Cancer Society funded most of the first study, but pulled their funding at the last minute, forcing the researchers to look elsewhere to find funding. Further, they say were only able to find funding from a foundation funded by the tobacco companies. In response, ACS vice-president Michael Thun asserts that Enstrom had been funded by the tobacco industry since 1997 without informing the ACS, and that Enstrom had communicated with Philip Morris about the potential value of the CPS-I follow-up as early as 1990.
The study also attracted criticism for a number of methodological flaws:
- It did not account for participants' considerable ETS exposure before California implemented a smoking ban in the late 1990s
- The analysis did not account for losses to follow-up, nor misclassification
- The lower than usual relative risks for active smoking and coronary heart disease could have obscured the effect of ETS
- The participant group they used was designed to assess the effect of active smoking, not ETS
Allan Hackshaw, deputy director of the cancer trials center at UCL, concluded "Enstrom and Kabat's conclusions are not supported by the weak evidence they offer, and, although the accompanying editorial alluded to 'debate' and 'controversy,' we judge the issue to be resolved scientifically, even though the 'debate' is cynically continued by the tobacco industry."
In addition, Enstrom and Kabat's work confirmed some harmful effects of secondhand smoke, in particular that it increased the risk of Chronic Obstructive Pulmonary Disease (COPD).
The link between tobacco industry funding and the results of studies on the nature of passive smoking was investigated in a literature review by Barnes & Bero, who found that the only factor affecting the conclusions of epidemiological studies of passive smoking was whether the authors had recieved funding from the tobacco industry or not . ASH published an analysis of the studies that concluded that the studies cannot be trusted, as there appears to be a direct conflict of interest. Alongside other faults, this analysis also criticizes the BMJ for failing to inform readers who funded the studies.
Tobacco industry response
The passive smoking issue poses a serious economic threat to the tobacco industry. It has broadened the definition of smoking beyond a personal habit to something with a social impact, it has been the cause of successful litigation against employers by workers with a history of exposure to smoke, and it has resulted in various types of smoking restrictions. Accordingly, the tobacco industry have developed several strategies to minimise its impact on their business:
- Libertarian: the industry has sought to position the passive smoking debate as essentially concerned with civil liberties and smokers' rights rather than with health.
- Funding bias in research: in all reviews of the effects of passive smoking on health published between 1980 and 1995, the only factor associated with concluding that passive smoking is not harmful was whether an author was affiliated with the tobacco industry
- Delaying and discrediting legitimate research: Australia
- Promoting "good epidemiology" and attacking so-called junk science (a term popularised by industry lobbyist Steven Milloy): attacking the methodology behind research showing health risks as flawed and attempting to promote sound science . Ong & Glantz (2001) cite an internal Phillip Morris memo giving evidence of this as company policy 
- See also: Smoking bans, List of smoking bans
As a consequence of the perceived dangers of passive smoking, a general ban on smoking in all establishments serving food and drink, including restaurants, cafés, and nightclubs, was introduced in Norway on June 1, 2004, and in Sweden on June 1, 2005, and many parts of America, including the states of Florida, California and New York, have similar legislation in place.
These initial bans have grown in scope, with countries (such as Ireland and Scotland), jurisdictions (like New York State, Washington State, and Arkansas in the US) now prohibiting smoking in public buildings as well as private businesses such as restaurants and clubs. Many office buildings contain specially ventilated smoking areas; some are required by law to provide them.
Some regions and local governments have banned smoking in all workplaces, in taxicabs, and in ventilated smoking rooms or enclosed smoking shelters such as those found in front of hospitals.
Even in countries traditionally seen as nations of smokers, opinion polls have shown support for bans, with 70% of those in France supporting a ban.
In the first 18 months after the town of Pueblo, Colorado enacted a smoking ban in 2003, hospital admissions for heart attacks dropped 27%. Admissions in neighboring towns without smoking bans showed no change. The American Heart Association said, "The decline in the number of heart attack hospitalizations within the first year and a half after the non-smoking ban that was observed in this study is most likely due to a decrease in the effect of secondhand smoke as a triggering factor for heart attacks." 
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- ^ Heart attacks decline after smoking bans CNN.com accessed 9/26/2006
- How dangerous is passive smoking? Article from BUPA, a healthcare organisation.
- Website of tobacco.org; news and analysis supporting tobacco control
- A critical view on the anti-tobacco movement
- Collection of Anti-Smoking TV Commercials
- FORCES International Claims that passive smoking is a fraud.
- A single source for every original study published concerning passive smoking
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- Anti-smoking website
- Anti-public smoking ban website
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