Navigation Links
Study reveals new details on the dangers of third-hand smoke
Date:2/8/2010

e main source of nitrous acid indoors. Since most vehicle engines emit some nitrous acid that can infiltrate the passenger compartments, tests were also conducted on surfaces inside the truck of a heavy smoker, including the surface of a stainless steel glove compartment. These measurements also showed substantial levels of TSNAs. In both cases, one of the major products found was a TSNA that is absent in freshly emitted tobacco smoke the nitrosamine known as NNA. The potent carcinogens NNN and NNK were also formed in this reaction.

"Time-course measurements revealed fast TSNA formation, up to 0.4 percent conversion of nicotine within the first hour," says lead author Sleiman. "Given the rapid sorption and persistence of high levels of nicotine on indoor surfaces, including clothing and human skin, our findings indicate that third-hand smoke represents an unappreciated health hazard through dermal exposure, dust inhalation and ingestion."

Since the most likely human exposure to these TSNAs is through either inhalation of dust or the contact of skin with carpet or clothes, third-hand smoke would seem to pose the greatest hazard to infants and toddlers. The study's findings indicate that opening a window or deploying a fan to ventilate the room while a cigarette burns does not eliminate the hazard of third-hand smoke. Smoking outdoors is not much of an improvement, as co-author Gundel explains.

"Smoking outside is better than smoking indoors but nicotine residues will stick to a smoker's skin and clothing," she says. "Those residues follow a smoker back inside and get spread everywhere. The biggest risk is to young children. Dermal uptake of the nicotine through a child's skin is likely to occur when the smoker returns and if nitrous acid is in the air, which it usually is, then TSNAs will be formed."

The dangers of mainstream and secondhand tobacco smoke have been well documented as a cause of cancer, cardiovascular disease and st
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. UC Davis study confirms link between advanced maternal age and autism
2. NTU researchers complete the worlds first in-depth study of the malaria parasite genome
3. Study reveals potential evolutionary role for same-sex attraction
4. Study shows male erectile dysfunction drug enhances fetal growth in female sheep
5. LSTM begins £0.5 million malaria study in Burkina Faso
6. University of Oklahoma study reveals red hot results
7. Big study of dirty air inversions
8. Evolution impacts environment, challenging traditionally held view, UC Riverside study finds
9. Simulation study may help Parkinsons patients retain driving skills
10. Most patients gain weight after getting a new knee, UD study finds
11. Study recommends better handling of milk in restaurants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study reveals new details on the dangers of third-hand smoke
(Date:4/14/2015)... , April 14, 2015  HYPR Corp. ... Online (FIDO ® ) Alliance tm , an ... FIDO members commit to share technology and collaborate ... that are interoperable, more secure and private, and ... biometric identity verification that protects sensitive user information ...
(Date:4/10/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/cjk4gb/security ) ... Profiles - NEC" report to their offering. ... continue to supply a range of IT security management ... focus on the development of a Big Data and ... the Asia-Pacific region is a ...
(Date:4/2/2015)... In the current eight ... the strongest competitors, showing outstanding performance in recognition ... is capable of a throughput of 5.000.000 fingerprints ... be ten times faster than most competitors and ...      (Photo: http://photos.prnewswire.com/prnh/20150402/738673-a ) , ...
Breaking Biology News(10 mins):HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3NEC Security Competitive Profile 2015 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3
... University biologists are part of an international research team ... remote Arctic lake provides compelling evidence of unprecedented environmental ... "Our findings show that the last several decades have ... Neal Michelutti, a research scientist at the Paleoecological Environmental ...
... An analysis of sediment cores indicates that biological and chemical ... the past 200,000 years and likely are the result of ... the University of Colorado at Boulder. While environmental ... shown to be tightly linked with natural causes of climate ...
... new ways to fight cancer and other diseases have ... circadian rhythm, says Liheng Shi, a researcher in Texas ... the roughly 24-hour cycle of physiological activities of humans, ... have had their research, currently focusing on the circadian ...
Cached Biology News:Queen's scientists on international team discover 'ecologically unique' changes in Arctic lake 2Arctic lake sediments show warming, unique ecological changes in recent decades 2Arctic lake sediments show warming, unique ecological changes in recent decades 3Texas A&M researchers find new mechanism for circadian rhythm 2
(Date:4/20/2015)... Texas , April 20, 2015 ... surgeons for healing bone injuries. The orthobiologics market is ... opportunities for its stakeholders. The global orthobiologics market report ... forecast of revenue. The global orthobiologics market was valued ... reach $7,900.2 million by 2019, at a CAGR of ...
(Date:4/20/2015)... , April 20, 2015  Eli Lilly and ... data from several targeted cancer therapies, reflecting Lilly,s diverse ... (AACR) Annual Meeting 2015, held April 18-22 in ... Cancer Discoveries to Patients" is the theme of this ... Lilly,s commitment to broadening its portfolio of therapies that ...
(Date:4/20/2015)... TORONTO , April 20, 2015 /CNW/ - Portage ... Canadian Securities Exchange: PBT.U), is pleased to announce that ... completed a collaborative research study that showed one of ... reduces inflammation in brain tissue through inhibition of NFkB ... The permeability of the blood brain ...
(Date:4/20/2015)... Global Stem Cells Group ... an annual gathering of aesthetic medicine experts and innovators. ... to introduce the company’s brand new training course that ... cell techniques. , The course is designed to ... aesthetic field, including facial aging caused by volume loss. ...
Breaking Biology Technology:Global Orthobiologics Market is Expected to Reach $7,900.2 Million by 2019, at a CAGR of 6.7% from 2014 to 2019 2Global Orthobiologics Market is Expected to Reach $7,900.2 Million by 2019, at a CAGR of 6.7% from 2014 to 2019 3Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 2Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 3Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 4Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 5Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 6Portage's CPP Platform Delivers a Peptide Cargo Across Blood Brain Barrier 2Portage's CPP Platform Delivers a Peptide Cargo Across Blood Brain Barrier 3Global Stem Cells Group to Host Featured Speaker at The Aesthetic Meeting 2015 in Montreal 2Global Stem Cells Group to Host Featured Speaker at The Aesthetic Meeting 2015 in Montreal 3
... STOCKHOLM, January 21 Richter-Helm,BioLogics GmbH & Co. ... for the development and manufacturing of Athera,s novel ... binding of the,protein, Annexin A5, to endothelium. The ... of patients with Acute Coronary Syndrome and who,are ...
... Pharmaceuticals, Inc. (NYSE Alternext US: IMM.BC) today announced ... Company, LLP as its independent registered public accounting ... Company,s independent registered public accounting firm was approved ... appointment will result in cost savings for Immtech. ...
... 20 /PRNewswire-FirstCall/ - Vasogen Inc. (NASDAQ: VSGN ; ... Deficiency Letter on January 13, 2009, indicating that it ... set forth in Nasdaq Marketplace Rule 4350(c)(1) (the "Rule"). ... a Director, which was announced publicly in a January ...
Cached Biology Technology:Richter-Helm and Athera Biotechnologies Partner in Development of Recombinant Protein to Treat Cardiovascular Disease 2Richter-Helm and Athera Biotechnologies Partner in Development of Recombinant Protein to Treat Cardiovascular Disease 3Immtech Announces Appointment of Virchow Krause as Independent Registered Public Accounting Firm 2Vasogen Complies with NASDAQ Marketplace Rule 4350(c)(1) 2
Mouse Nodal Affinity Purified Polyclonal Ab...
Immunogen: Full length M32 fusion protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Human TFPI Affinity Purified Polyclonal Ab Protein Family: Coagulation, Inflammation, Serine Protease Regulators...
Prostaglandin E2 Luminex Standard Product Lines: Unspecified...
Biology Products: