Skip 
Navigation Link

1215 South Walnut Ave.
Demopolis, AL 36732 map map 

Access to Care: 800.239.2901

Health Policy & Advocacy
Resources
Basic InformationMore InformationLatest News
Health Tip: Making an Emergency CallFrom Pigs to Peacocks, What's Up With Those 'Emotional-Support Animals'?Global Aid Programs Shortchange Teen Health Needs: StudyDoctors Write Fewer Opioid Scripts After Learning of Overdose DeathHow to Become an Educated PatientU.S. Murder, Suicide Rates Climbing AgainTo Boost Colon Cancer Screening, Use the MailMajority in U.S. Support Medical Pot, Think It Could Fight Opioid CrisisWhey Powder Blamed for Salmonella Tied to Ritz Crackers, Goldfish: FDAToo Few Americans Getting Screened for Cancer: CDCYou Have 11 Seconds to Tell Your Doc What's WrongFDA Warns of Deaths Tied to Tainted Synthetic PotWhere Are Opioid Painkillers Prescribed the Most?In the ICU, Patients' Relatives Often Mum About Care ConcernsResetting E-Prescriptions for Opioids Helps Curb Use: StudyHealth Tip: If You're 45 or Older, Get Screened for Colorectal CancerRed Cross Issues Nationwide Call for Blood DonationsDoctor Burnout Widespread, Helps Drive Many Medical ErrorsWarming Climate, More AC -- and More Unhealthy Smog AheadEven at 'Safe' Levels, Air Pollution May Boost Diabetes RiskDeath Certificate Data May Miss Many Opioid ODs: StudyRaise the Bar on CPR, Heart Group SaysWhen DEA Cracked Down on Opioids, Abusers Moved to Black Market: StudyStigma of Safe Needle Exchanges Lingers Despite Opioid EpidemicAHA: Drones a Lifesaver for Cardiac Arrest Patients?Millions Die Worldwide Each Year for Lack of Quality CareTips for Handling a Medical EmergencyAHA: Lifesaving Info Not Always a 911 Call AwayMany, But Not All, Hospitals Require Flu Shots for StaffersCancer Care Twice as Costly in U.S. Versus CanadaAHA: Health Concerns Haunt Puerto Rico as New Hurricane Season BeginsPot, Opioids Now Rival Alcohol as Factor in Driver DeathsThe ER or Urgent Care?Trumps Signs Bill Allowing Terminal Patients to Try Unproven MedicinesTough State Drunk Driving Laws Save LivesE-Cigarettes Don't Help Smokers Quit, But Cash MightSmall World? Not With One-Quarter Obese by 2045A Pill to Protect You From the Sun? Don't Believe It, FDA SaysMost Hospitals Aren't Ready for Mass Tragedies, ER Docs SayAHA: Making America's Doctors Look More Like AmericaLanguage Used in Medical Record Can Affect Patient CareNonprofit Manufacturer Could Keep Generic Drug Costs DownOpioid Makers' Perks to Docs Tied to More PrescriptionsFDA Targets Clinics Offering Unapproved Stem Cell TherapiesLittle 'Quit-Smoking' Help at U.S. Mental Health CentersIs Testing for Zika in U.S. Blood Supply Worth the Cost?'Smoke-Free' Rooms Still Loaded With Smoke Residues, Study FindsAHA: Smoke-Free Laws Do Seem to Help Young Adults' HeartsAHA: Poverty Levels Key to States' Performance on Heart DiseaseSimple Drug Packaging Change Could Save Toddlers' Lives
Questions and AnswersVideosLinksBook Reviews
Related Topics

Health Insurance
Healthcare

'Smoke-Free' Rooms Still Loaded With Smoke Residues, Study Finds

HealthDay News
by By Steven Reinberg
HealthDay Reporter
Updated: May 9th 2018

new article illustration

WEDNESDAY, May 9, 2018 (HealthDay News) -- Harmful cigarette smoke residue may be lurking in rooms where no one has ever lit up, researchers report.

In a new study, scientists from Drexel University in Philadelphia found that in an empty, nonsmoking classroom, nearly 30 percent of the tiny particles in the air were linked with cigarette smoke -- what is called "third-hand" smoke.

"We didn't expect to see a nonsmoking environment having such a signature of tobacco smoke," said lead researcher Peter DeCarlo, an associate professor of environmental engineering.

The dangers of second-hand smoke are well documented. But whether exposure to third-hand smoke carries the same health harms for people isn't known, DeCarlo noted.

However, animal studies have found that exposure to third-hand smoke can have negative effects on health, he said.

In nonsmoking areas, particles from smoking enter through ventilation systems and on clothing, and these particles cling to walls and furniture. They are difficult to remove and can emit harmful chemicals for years, DeCarlo explained.

In lab tests, the investigators used cigarette smoke to confirm that tobacco residue can travel from its source to areas where no one has ever smoked.

Dr. Norman Edelman, a senior scientific adviser to the American Lung Association, pointed out that "for a long period of time, lots of people were skeptical as to whether second-hand smoke was dangerous."

Then, extensive studies proved clearly that second-hand smoke is bad. "Now we are faced with third-hand smoke," he said.

For some people, such as those with asthma, third-hand smoke is dangerous, Edelman said. The question that remains is whether it's dangerous to the general public, he noted.

Overall, 29 percent of the tiny indoor particulate matter that people can inhale in a nonsmoking room was associated with the residue of third-hand smoke, the researchers found.

And, DeCarlo said, these findings may also apply to particles released by e-cigarettes.

"People should know that nonsmoking environments aren't necessarily free of smoking residue or exposure to tobacco smoke," he warned.

Suzaynn Schick, an associate professor at the University of California, San Francisco's division of occupational and environmental medicine, explained that once in the air, particles from tobacco smoke persist for a long time.

"Earlier research has shown that organic compounds in cigarette smoke -- the tar -- sticks to walls, carpets, furniture, clothing, skin and hair," Schick said.

Once stuck, they can remain for months, and even years, and release new and sometimes more toxic chemicals, she said.

"What makes this study so remarkable is that Drexel University has been smoke-free for over 20 years, and the overall air quality during their experiments was very high," Schick added.

This paper adds proof that even very small amounts of cigarette smoke have large effects on indoor air quality, she said.

Small airborne particles are important because they travel deep into the lungs, and even small increases in airborne particle concentrations increase the risk of cardiovascular disease and lung disease, Schick noted.

"Because the use of tobacco products has such a strong effect on indoor air chemistry, enforcing strong smoke-free policies and providing comprehensive services to smokers who wish to quit are vital tools to keep indoor air clean and protect the public health," she said.

The report was published online May 9 in the journal Science Advances.

More information

For more about third-hand smoke, visit the National Center for Health Research.