Evidence map›Paper›PMID 26726281›Full record

ArticleAerosol science and technology : the journal of the American Association for Aerosol Research

A Real-Time Fast-Flow Tube Study of VOC and Particulate Emissions from Electronic, Potentially Reduced-Harm, Conventional, and Reference Cigarettes.

Sandra L Blair, Scott A Epstein, Sergey A Nizkorodov, Norbert Staimer

Open access · greenAbstract read
In one paragraph

Article in Aerosol science and technology : the journal of the American Association for Aerosol Research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Biomarkers of Tobacco Exposure Decrease After Smokers Switch to an E-Cigarette or Nicotine Gum.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2019
    Trial
  4. E‑Cigarettes Generate Gas Phase Ions.Environment & health (Washington, D.C.) · 2026
    Article
  5. Influence of e-cigarettes and their constituents on cardiac rhythm and arrhythmias.American journal of physiology. Heart and circulatory physiology · 2026
    Review
  6. Article
  7. Association between biomarkers of tobacco smoke exposure and clinical efficacy of ivacaftor in the G551D observational trial (GOAL).Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2024
    Observational
  8. Article
  9. Article
  10. Article
  11. Article
  12. Cross-Sectional Association of Lifetime Electronic Cigarette Use with Wheezing and Related Respiratory Symptoms in U.S. Adults.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
    Article
  13. Article
  14. Article
  15. Chemical Characterization of Nanoparticles and Volatiles Present in Mainstream Hookah Smoke.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2019
    Article
  16. Review
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Sandra L BlairDepartment of Chemistry, University of California, Irvine, California, USA.
Scott A EpsteinDepartment of Chemistry, University of California, Irvine, California, USA.
Sergey A NizkorodovDepartment of Chemistry, University of California, Irvine, California, USA.
Norbert StaimerDepartment of Epidemiology, University of California, Irvine, California, USA.
University of California, Irvine · US

Funding

Differential Redox & Electrophilic Toxicities of Modified Tobacco ProductsR21CA164540 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI STAIMER, NORBERT · 2013 to 2014
$354k
NCI NIH HHS R21 CA164540
6 · The paper itself

Abstract

Tobacco-free electronic cigarettes (e-cigarettes), which are currently not regulated by the FDA, have become widespread as a "safe" form of smoking. One approach to evaluate the potential toxicity of e-cigarettes and other types of potentially "reduced-harm" cigarettes is to compare their emissions of volatile organic compounds (VOCs), including reactive organic electrophillic compounds such as acrolein, and particulate matter to those of conventional and reference cigarettes. Our newly designed fast-flow tube system enabled us to analyze VOC composition and particle number concentration in real-time by promptly diluting puffs of mainstream smoke obtained from different brands of combustion cigarettes and e-cigarettes. A proton transfer reaction time-of-flight mass spectrometer (PTRMS) was used to analyze real-time cigarette VOC emissions with a 1 s time resolution. Particles were detected with a condensation particle counter (CPC). This technique offers real-time analysis of VOCs and particles in each puff without sample aging and does not require any sample pretreatment or extra handling. Several important determining factors in VOC and particle concentration were investigated: (1) puff frequency; (2) puff number; (3) tar content; (4) filter type. Results indicate that electronic cigarettes are not free from acrolein and acetaldehyde emissions and produce comparable particle number concentrations to those of combustion cigarettes, more specifically to the 1R5F reference cigarette. Unlike conventional cigarettes, which emit different amounts of particles and VOCs each puff, there was no significant puff dependence in the e-cigarette emissions. Charcoal filter cigarettes did not fully prevent the emission of acrolein and other VOCs.

Indexed as

acroleincigarettee-cigarettemass spectrometry (MS)particle size measurementvolatile organic compounds (VOC)

Identifiers

PMID26726281
PMCPMC4696598
OpenAlexW1604465000

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.