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tag:category-air_quality

TAG: category-air quality

A fresh look at tobacco harm reduction: the case for the electronic cigarette Journal Article Abstract Smokers of any age can reap substantial health benefits by quitting. In fact, no other single public health effort is likely to achieve a benefit comparable to large-scale smoking cessation. Surveys document that most smokers would like to quit, and many have made repeated efforts to do so. However, conventional smoking cessation approaches require nicotine addicted smokers to abstain fro…
Acute effects of electronic and tobacco cigarette smoking on complete blood count Journal Article The World Health Organisation called for research assessing the safety of electronic cigarette (e-cigarette). We evaluated the acute effect of active and passive e-cigarette and tobacco cigarette smoking on complete blood count (
Air Sanitizers- US EPA Document Air Sanitizers DIS/TSS-11 / Sep. 3, 1980 EFFICACY DATA AND LABELING REQUIREMENTS: Air Sanitizers These requirements apply to products with label claims for the treatment of air to reduce the numbers of airborne microorganisms.
AMBIENT MEASUREMENTS OF AIR TOXIC POLLUTANTS AT RESURRECTION CATHOLIC SCHOOL IN BOYLE HEIGHTS Journal Article BACKGROUND AND OBJECTIVES Boyle Heights is a neighborhood located on the eastern bank of the Los Angeles River, east of downtown Los Angeles. The extensive East Los Angeles Interchange (the busiest freeway interchange in the world) passes through Boyle Heights, allowing access to the Golden State (I- 5), Hollywood (U.S. Route 101), Pomona (SR 60), San Bernardino (I-10), Santa Ana (…
ASSESSMENT OF THIRDHAND EXPOSURE TO NICOTINE FROM ELECTRONIC CIGARETTES Conference Paper Purpose: Electronic cigarettes (e-cigarettes) are new battery-powered devices that resemble tobacco cigarettes and convert nicotine solutions into inhalable vapors.
Characterization of chemicals released to the environment by electronic cigarettes use (ClearStream-AIR project): is passive vaping a reality? Journal Article Background Electronic cigarettes (e-CIG) have been marketed as a safer alternative habit to tobacco smoking. We have developed a group of research protocols to evaluate the effects of e-CIG on human health, called ClearStream. No studies have adequately evaluated the effects of e-CIG use on the release of chemicals to the environment…
Cigarette Smoke Toxins Deposited on Surfaces: Implications for Human Health Journal Article Cigarette smoking remains a significant health threat for smokers and nonsmokers alike. Secondhand smoke (SHS) is intrinsically more toxic than directly inhaled smoke. Recently, a new threat has been discovered – Thirdhand smoke (
Comparison of the aerosol produced by electronic cigarettes with conventional cigarettes and the shisha Journal Article In previous studies of the smoke from regular cigarettes and water pipes, we measured aerosol particle sizes in three streams; S1, inhaled by the smoker, S2, released by the device itself and
Comparison of the effects of e-cigarette vapor and cigarette smoke on indoor air quality Journal Article CONTEXT: Electronic cigarettes (e-cigarettes) have earned considerable attention recently as an alternative to smoking tobacco, but uncertainties about their impact on health and indoor air quality have resulted in proposals for bans on indoor e-cigarette use. OBJECTIVE: To assess potential health impacts relating to the use of e-cigarettes, a series of studies were conducted using e-ci…
Does e-cigarette consumption cause passive vaping? Journal Article Electronic cigarette consumption ('vaping') is marketed as an alternative to conventional tobacco smoking. Technically, a mixture of chemicals containing carrier liquids, flavors, and optionally nicotine is vaporized and inhaled. The present study aims at the determination of the release of volatile organic compounds (
E-cigarette use and indoor air quality: methodological limitations Response to Schober W et al. Use of electronic cigarettes (e-cigarettes) impairs indoor air quality and increases FeNO levels of e-cigarette consumers Journal Article By Dr Farsalinos
Ecigarette mist harmless, inhaled or exhaled Report Background Electronic cigarettes, without tobacco, flame or smoke, claim to be cigarette substitutes and to deliver nicotine safely, without smoke toxicants. Are these claims justified? Aim
Environmental Health Criteria Monographs (EHCs)- Formaldehyde (EHC 89, 1989) Web Page 1.8 Effects on Man Formaldehyde has a pungent odour detectable at low concentrations, and its vapour and solutions are known skin and eye irritants in human beings. The common effects of formaldehyde exposure are various symptoms caused by irritation of the mucosa in the eyes and upper airways. In the non-industrial indoor environment, sensory reactions are typical effects, but there are large indiv…
Experimental exposure to propylene glycol mist in aviation emergency training: acute ocular and respiratory effects Journal Article OBJECTIVES— Propylene glycol (PG) (1-2 propanediol; CAS No 57-55-6) is a low toxicity compound widely used as a food additive, in pharmaceutical preparations, in cosmetics, and in the workplace—for example, water based paints, de-icing fluids, and cooling liquids. Exposure to
Exposure of the us population to environmental tobacco smoke: The third national health and nutrition examination survey, 1988 to 1991 Journal Article Objective.  To estimate the extent of exposure of the US population to environmental tobacco smoke and the contribution of the home and workplace environment to environmental tobacco smoke exposure.
Government study finds toxic Roundup herbicide in 75 percent of air, rain samples Web Page Tuesday, March 11, 2014 by: Jonathan Benson, staff writer (NaturalNews) You might not want to hold your tongue out to catch that enticing drop the next time it rains
Heat degradation studies of solar heat transfer fluids Journal Article Destructive distillation of solar heat transfer fluids was conducted to determine the types of pyrolytic products which might be formed in solar collectors under conditions of stagnation or malfunction.
Human Breath Emissions of VOCs Journal Article ABSTRACT The medical community has long recognized that humans exhale volatile organic compounds (VOCs). Several studies have quantified emissions of VOCs from human breath, with values ranging widely due to variation between and within individuals. The authors have measured human breath concentrations of isoprene and pentane.
IDENTIFICATION OF CYTOTOXIC CHEMICALS IN THIRDHAND SMOKE Conference Paper (See note attachment for extended abstract) IDENTIFICATION OF CYTOTOXIC CHEMICALS IN THIRDHAND SMOKE Vasundhra Bahl*1,2, Suzaynn Schick 3, Mohamad Sleiman4, and Prue Talbot
Indoor Air Pollution: An Introduction for Health Professionals Book Health Problems Related To Environmental Tobacco Smoke Key Signs/Symptoms in Adults … * rhinitis/pharyngitis, nasal congestion, persistent cough * conjunctival irritation
Involuntary smoking in the restaurant workplace: A review of employee exposure and health effects Journal Article Objective.\\  To determine the relative exposure to environmental tobacco smoke for bar and restaurant employees compared with office employees and with nonsmokers exposed in the home (part 1) and to determine whether this exposure is contributing to an elevated lung cancer risk in these employees (part 2).
Legislating abjection? Secondhand smoke, tobacco control policy and the public's health Journal Article Since the mid-1990s the position that “no amount of secondhand smoke is safe” has achieved hegemonic status in the field of public health. This has bolstered efforts in the tobacco control community to advocate for smoke-free legislation and a variety of countries around the world have implemented indoor smoking bans, with many others presently following suit. Increasingly, tobacco contro…
Letter re fatal flaws in Schober et al. paper on environmental vapor Blog Post by Carl V Phillips Below is a letter to the editor and Igor Burstyn and I will be submitting to the journal that published this article -- “Use of electronic cigarettes (e-cigarettes) impairs indoor air quality and increases FeNO levels of e-cigarette consumers” by Schober W, Szendrei K, Matzen W, Osiander-Fuchs H, Heitmann D, Schettgen T, Jörres RA, Fromme H – which made alarmist claims about the content of exh…
New Study of Passive Vaping Shows No Evidence of a Significant Public Health Hazard Blog Post A new study published online ahead of print in the International Journal of Hygiene and Environmental Health is one of the first to examine levels of chemicals in the ambient air of a real-life setting in the presence of electronic cigarette use.
New Study Shows that Thirdhand Smoke is 100 Times More Dilute than Secondhand Smoke Blog Post What may be the first investigation to actually measure the ambient levels of thirdhand smoke and compare them with levels of secondhand smoke, a new study
Propylene glycol - Wikipedia Encylopedia Article Propylene glycol, also called 1,2-propanediol or propane-1,2-diol, is an organic compound (a diol or double alcohol) with formula C3H8O2. It is a colorless, nearly odorless, clear, viscous liquid with a faintly sweet taste, hygroscopic and miscible with water, acetone, and chloroform.
Real–Time Measurement of Outdoor Tobacco Smoke Particles Journal Article Abstract The current lack of empirical data on outdoor tobacco smoke (OTS) levels impedes OTS exposure and risk assessments. We sought to measure peak and time-averaged OTS concentrations in common outdoor settings near smokers and to explore the determinants of time-varying OTS levels, including the effects of source proximity and wind. Using five types of real-time airborne particle monitoring devices, we obtained mo…
Scientists Find the Same Ecig “Toxins” In Regular Human Breath Blog Post All over the country, lawmakers are arguing that vaping should be banned in public areas because they fear it will put people at risk through secondhand exposure. Most recently, Los Angeles joined the campaign to outlaw public vaping, claiming that ecig vapor contains dangerous toxins like lead, nickel, nicotine, and chromium. After doing a little research, we found scientific evidence to refute lawmaker claims. It tur…
The Bactericidal Action of Propylene Glycol Vapor on Microorganisms Suspended in Air II. the Influence of Various Factors on the Activity of the Vapor Journal Article A study of the conditions which affect the bactericidal action of propylene glycol vapor on air-suspended microorganisms has been carried out. The killing process was found to be more effective when both the total number of air-borne droplets and the number of organisms in the bacterial suspension are small. A temperature belo…
The Bactericidal Action of Propylene Glycol Vapor on Microorganisms Suspended in Air. I Journal Article It has been found that propylene glycol vapor dispersed into the air of an enclosed space produces a marked and rapid bactericidal effect on microorganisms introduced into such an atmosphere in droplet form. Concentrations of 1 gm. of propylene glycol vapor in two to four million cc. of air produced immediate and complete sterilization of air into which pneumococci, streptococci, staphylo…
THE MECHANISM OF AERIAL DISINFECTION BY GLYCOLS AND OTHER CHEMICAL AGENTS - 1 Journal Article Theoretical analysis of the mechanism of action of chemical aerial disinfectants reveals that the rapid killing action which is obtained cannot be accounted for by a collision process between germicidal aerosol particles and the air-borne bacteria. However, a mechanism involving condensation of germicide molecules in the vapor state on to the bacteria-containing droplets results in a theoretical ve…
THE MECHANISM OF AERIAL DISINFECTION BY GLYCOLS AND OTHER CHEMICAL AGENTS - 2 Journal Article The effectiveness of any compound as an aerial germicide depends upon the extent of condensation of its vapor on air-suspended bacteria, and on the rate at which the resulting concentration of germicide can produce death of the microorganisms. The properties of any compound conducive to production of the highest rate of kill of air-borne microorganisms by means of the smallest possible concentratio…
Third-hand smoking: indoor measurements of concentration and sizes of cigarette smoke particles after resuspension Journal Letter In a previous study1 of ‘secondhand’ cigarette smoke, we showed that 75% of the particles added to indoor air were of ultrafine sizes and had a half-life in air of 18 minutes at 25°C. These particles after their deposition on household surfaces could be later put back in suspension and constitute a toxic ‘thirdhand’
Toxins in E-Cig Vapor Also Found in Human Breath and Outdoor Air Manuscript Summary * Five of the volatile organic compounds detected by various studies in electronic cigarette vapor have also been found in human breath emissions (acetaldehyde, acetone, butanone, formaldehyde and isoprene).
Two-Thirds of Americans OK With E-Cig Use In Their Personal Space, Survey Finds Newspaper Article First U.S. Study of Its Kind Finds 63 Percent of Adults Would Not Be Bothered By Use of E-Cigs; Majority Approve of ‘Vaping’ at Sporting Events; Men, Women Differ in Opinions
Use of electronic cigarettes (e-cigarettes) impairs indoor air quality and increases FeNO levels of e-cigarette consumers Journal Article Despite the recent popularity of e-cigarettes, to date only limited data is available on their safety for both users and secondhand smokers. The present study reports a comprehensive inner and outer exposure assessment of e-cigarette emissions in terms of particulate matter (