Articles tagged with Smoke
A new study from Duke University Medical Center found that pregnant women in North Carolina experienced reduced secondhand smoke exposure since the passage of the 'smoking ban' in 2009. Despite overall reductions, racial and socioeconomic disparities persisted among African-American, unmarried, and less-educated women.
A new study suggests that e-cigarettes can reduce premature deaths and life years lost compared to smoking, making them a promising alternative for smoking cessation. The authors argue that harm minimization is essential and that nicotine replacement therapies like gum or patches are more appealing but less effective.
Wildfire smoke plumes spread across the US, causing devastating effects on air quality and health. Researchers found that smoke from wildfires can tip air quality to unhealthy levels, particularly in urban areas with high population densities.
A collaborative team from Washington University in St. Louis conducted field studies in Raipur, India, to quantify the true scope of particulate emissions from cookstoves. They found that emissions were higher than previously estimated, with some cases exceeding twice the levels detected in laboratory experiments.
Thomas Fire contained to 60% thanks to improving weather conditions, with satellite images showing reduced hot spots and smoke. However, forecasted strong north winds may reignite the fire, prompting concern for continued spread.
Colorado State University researchers are expanding their study of wildfire smoke impacts thanks to new grants. The awards will fund research into modeling how aerosols from fires travel and react in the air, building on previously collected data from the Fire Influence on Regional and Global Environments Experiment (FIREX).
The Thomas fire, California's fifth-largest blaze, is being closely monitored due to the satellite's ability to provide detailed temperature differences within the burn scar. Severe fire weather continues to threaten communities in Santa Barbara County, with gusty offshore winds posing a significant risk.
Ocean researchers discovered 'smoke rings' that can transport small marine life at high speeds across vast distances. These linked eddies are ten times faster than regular ocean currents and were found in the Tasman Sea and South Atlantic.
In a concerning study, nearly 500 Bangladeshi children aged 9-12 tested positive for recent second-hand smoke exposure. The results reveal alarming rates of SHS exposure among Bangladeshi children, with 95% showing evidence of biochemically validated exposure.
A new study published in Archives of Toxicology shows that common combinations of low molecular weight polycyclic aromatic hydrocarbons (LMW PAHs) can help spark the development of cancer, even if each chemical is not known to cause cancer alone.
A new model developed by Alfonso Gañán explains the origin of various phenomena, including cloud formation, wine aroma, and tire smoke. The model predicts the critical size of gas bubbles that determine the release of tiny droplets, which can generate clouds or spread flavors in the air.
Researchers at Penn State found that popular cigar brands deliver more nicotine than commonly used cigarettes. The study suggests that small cigars, often perceived as safer alternatives, are just as addictive and harmful. The researchers plan to explore further comparisons between the toxins released by cigars and cigarettes.
A new study suggests that parents who smoke mistakenly rely on their own physical senses to gauge the presence of tobacco smoke in the air, leading to misconceptions about when and where children are exposed. This lack of awareness can result in inadequate measures being taken to protect children from secondhand smoke.
The American Thoracic Society editorial emphasizes the need for effective tobacco control measures, citing the court-ordered publication of corrective statements by major US tobacco companies. The statements acknowledge the addictive nature of nicotine and the lethal effects of smoking on human health.
A recent animal study suggests that heat-not-burn tobacco products may not offer cardiovascular protection. Exposure to iQOS vapor resulted in a significant decrease in blood vessel function, comparable to cigarette smoke.
A mouse study found significant differences in gut microbiome composition between male and female mice exposed to nicotine, with potential implications for nicotine's addictive properties. The study suggests that the brain-gut relationship plays a crucial role in nicotine's effects, particularly in women.
A new study reveals that cigarette smoke triggers colitis, an inflammation of the colon, in mice exposed to cigarette smoke. The researchers identified CD4+ T cells and a pro-inflammatory protein as the immune cells responsible for this effect. This finding could lead to the development of new treatments for Crohn's disease.
Scientists found gloTM vapour produces significantly lower levels of harmful compounds compared to cigarette smoke. The study measured 126 substances and found that 102 were emitted 95% less in gloTM vapour than in cigarette smoke.
Scientists ranked glo™ and other next-generation products against conventional cigarettes, finding reduced toxicants in vapour and biological impact on cells. Glo™ produced a substantially reduced response compared to cigarette smoke.
New research by British American Tobacco finds that vapour from gloTM has no toxic effect on human lung cells, unlike cigarette smoke. The study's results indicate that gloTM is substantially less harmful and may be considered a reduced-risk alternative.
Researchers at UBC Okanagan campus have created a definitive method to detect wildfire-tainted wine grapes, providing accurate and quick results. The new test detects volatile phenols present in the fruit prior to wine production, helping wine producers and grape growers manage the impact of smoke exposure on wine flavor.
A Keck School of Medicine of USC study found that teens vaping high-nicotine e-cigarettes were 14 times more likely to smoke traditional cigarettes per day. High nicotine concentrations increased the risk of becoming frequent smokers among youth.
Researchers at Washington University in St. Louis have discovered that brown carbon aerosol from wildfires loses its ability to absorb sunlight the longer it remains in the atmosphere, leading to a significant reduction in warming effects. This finding challenges current climate models and could impact air quality management districts.
A review by UC Davis graduate students highlights the need for research on wildfire smoke's composition and its impact on human health. The study found that current scientific evidence is insufficient, and pesticides and fire-suppression chemicals used in California contribute to the toxic effects of wildfire smoke.
A study found that a more intensive text messaging program helped some pregnant women quit smoking during pregnancy. The combo of Text4baby and Quit4baby was particularly effective for women age 26 and older and those in the second and third trimester. However, resolve to quit seemed to disappear postpartum.
Glycosylation of smoke-derived volatiles in grapevine is catalyzed by a promiscuous resveratrol/guaiacol glucosyltransferase, leading to undesirable aromas in wine. The study provides insight into the molecular mechanism behind this phenomenon and potential counter-measures for vintners.
A new study projects increased lung cancer death risks among people living with HIV who smoke, with heavy smokers facing the highest mortality rates. The study suggests that tobacco use accelerates lung cancer development and should be prioritized in comprehensive care for HIV patients.
Researchers found that thirdhand smoke exposure causes significant health effects in mice as early as one month after initiation of exposure, including liver damage and insulin resistance. The effects worsen with time, with stress hormones increasing and immune fatigue developing at longer exposure durations.
Scientists at Johns Hopkins Kimmel Cancer Center found that cigarette smoke triggers epigenetic changes in human airway cells, sensitizing them to genetic mutations. These changes precede and silence key tumor suppressor genes, leading to increased KRAS signaling and cancer development.
New studies reveal that e-cigarette refills contain respiratory irritants and increase symptoms in smokers. E-cigarette use is most common among smokers, with dual users experiencing the worst respiratory symptoms.
A new study found that more than 1 in 4 European workers are exposed to secondhand smoke at work, with indoor workplaces seeing an increase in cases. The research, which surveyed over 55,000 people across the EU, highlights the need for stronger enforcement of existing smoke-free laws.
A long-term follow-up study found that many patients who received instructions to stop smoking before cosmetic surgery were more likely to quit or reduce their cigarette use. The study suggests that targeted messaging with specific examples of the negative effects of smoking may be an effective way to encourage smokers to quit.
A new meta-analysis finds that having friends who smoke doubles the risk of adolescents starting and continuing to smoke. The study also reveals that peer influence is stronger in collectivist cultures, where adolescents are 4.3 times more likely to pick up smoking if their peers smoke.
A recent UK study found that schoolchildren who use e-cigarettes are 34% more likely to smoke a cigarette within a year. The research, led by the University of Leeds, surveyed over 2,800 adolescents and found that e-cigarette use was a strong predictor of smoking initiation, particularly among those with no friends who smoked.
Researchers found that e-liquid and vaping device variations can lead to high toxin levels, exceeding occupational limits for acrolein, formaldehyde, and diacetyl. Typical use scenarios result in lower toxicity compared to secondhand tobacco smoke.
A Colorado State University study shows a strong correlation between Facebook posts about visible smoke and commonly used datasets for estimating smoke exposure. The researchers found that Facebook was a better tool than satellite data in pinpointing smoke exposure, with daily maps of Facebook posts matching standard smoke monitoring s...
In British Columbia, over 500 wildfires are currently active, with firefighters battling blazes in three main areas. The region is experiencing its third-worst fire season on record, with 840 fires breaking out since April 1. Firefighting costs have reached $172.5 million, with close to 4,000 personnel working to contain the flames.
A study by University of Stirling researchers found a link between e-cigarette use and subsequent cigarette experimentation among never smokers. Young people who tried an e-cigarette were more likely to smoke a cigarette in the following year compared to those who had not.
Scientists are calculating environmental and human impacts of a potential nuclear war using sophisticated climate models and supercomputers. The team aims to provide a solid scientific analysis of the issues, including impacts on agriculture, food availability, and migration activity.
A study published in Respiratory Research reveals abnormal lung structure and function changes in mice exposed to second-hand smoke during gestation, leading to decreased lung function in adult offspring. The research suggests that in utero second-hand smoke exposure can predispose to adult lung diseases.
A laboratory study reveals that e-cigarette vapour has no effect on wound healing, whereas cigarette smoke completely prevents it at concentrations over 20%. The test used the scratch test to compare the effects of smoke extract and vapour extract from two commercial e-cigarettes.
A UM chemist will lead a three-year research project studying the chemical composition and evolution of western wildfire smoke. The study aims to improve understanding of the impact of VOCs on air quality, climate, and human health.
A new tobacco hybrid device, iFuse, produces a vapour with similar toxicant profile to e-cigarette Vype ePen, but with enhanced flavour. The vapour's toxicity levels are significantly lower than those in cigarette smoke.
Researchers found that brown carbon released into the air from wildfires is more likely to travel to the upper levels of the atmosphere, where it can cool or warm the air. Brown carbon appears more likely than black carbon to have a greater impact on climate due to its altitude.
A University of Pittsburgh analysis found that young adults who have a positive attitude towards hookah smoking are more likely to take their first puff. The study suggests that prevention efforts should focus on countering the image of hookah smoking as a fun social activity rather than emphasizing health risks.
Researchers found that Amish women exposed to secondhand smoke had a greater risk for cardiovascular disease, while men exposed to secondhand smoke tended to have a higher body mass index (BMI). The study, conducted in a Pennsylvania Amish community, used a novel method to track exposure and avoided recall bias. Small amounts of second...
A large study of over 39,000 participants found that social smokers face the same high blood pressure and cholesterol risks as everyday smokers. The researchers advise clinicians to ask about social smoking in different ways to identify and help these individuals quit.
A team of researchers led by Colorado State University is conducting a comprehensive study to better understand how wildfire smoke changes chemically with time, affecting air quality across the US. The study aims to improve predictions of air quality and weather patterns.
Research by British American Tobacco found that e-cigarette vapour has a limited effect on gene expression in human lung cells compared to cigarette smoke. The study exposed MucilAir 3D models to equivalent or higher doses of nicotine and measured the genes affected, revealing significant differences in response.
A recent study by UCSF found that young adults experience greater pleasure from smoking cigarettes while under the influence of alcohol compared to marijuana. The study, which used self-reported data from 500 participants aged 18-25, suggests that co-use of cigarettes and alcohol may be more pleasurable than co-use with marijuana.
In Kansas, controlled burns by farmers to manage land produce smoke with various chemicals and particles, posing an issue for air quality. Air quality alerts are in place due to the drift of smoke from burning grass.
A study by Cincinnati Children's Hospital Medical Center and San Diego State University found that children carry high levels of nicotine on their hands even when no one is actively smoking around them. This exposure is associated with various health problems, including respiratory issues and asthma attacks.
The prevalence of daily smoking declined globally between 1990 and 2015, but the number of daily smokers continues to rise year-over-year. Robust tobacco control programs have led to progress in reducing smoking rates, but more efforts are needed to prevent new smokers and encourage quitters.
A new study measures potentially damaging free radicals in cigarette smoke for the first time, finding variations in their levels across different cigarettes. The researchers' standardized protocol could help assess people's exposure to free radicals and inform potential health risks.
Researchers developed a standardized protocol for measuring gas-phase and particulate-phase free radicals in cigarette smoke. The study found that levels of these radicals varied widely across cigarette types, with highly ventilated cigarettes producing lower levels.
A new study published in Nicotine & Tobacco Research reveals that comprehensive smoking bans significantly decrease overall secondhand smoke exposure across all settings. Exposure to secondhand smoke was found to drop from 72% in 2006 to 45% in 2011, even outside workplaces and hospitality areas covered by the legislation.
Research published in BMJ Open found that brainy teens are less likely to smoke, but more likely to drink alcohol and use cannabis. The study tracked the substance use of over 6,000 English teenagers from age 11 to 19, revealing persistent patterns into adulthood.
A new University of Michigan study found that high school seniors who vape are more than four times more likely to smoke a cigarette in the following year. Vaping changes teens' perceptions of the risks of smoking, making them less likely to view smoking as harmful.
A recent study has found that e-cigarette users have significantly lower levels of toxic chemicals and carcinogens in their body compared to smokers. The study also suggests that quitting smoking altogether is the best way to minimize exposure to toxins, rather than using e-cigarettes alongside traditional cigarettes.
Researchers compared the effects of direct exposure to cigarette smoke or e-cigarette vapor on reconstituted lung tissue, finding changes in gene expression levels and increased inflammation. The study utilized a 3D airway culture system and next-generation sequencing technologies to evaluate the biological effects.