CONFERENCE PROCEEDING
Chemical compounds in the liquids and the emissions of electronic cigarettes
1
Hellenic Open University, Patras, Greece
2
University of Athens, Athens, Greece
Tob. Prev. Cessation 2026;12(Supplement 1):A95
ABSTRACT
BACKGROUND-AIM:
The electronic cigarettes are since some years in the market. The technology of those products evolved during those years; the same is also valid in the case of liquids composition. This work analyses the published works and synthetise the data on the chemical compounds found in the liquids and the emissions of electronic cigarettes.
METHODS:
Scopus is used as database for the published works. Two searches were performed, using appripriate keywords, one for the composition of e-liquids and one for emissions. The PRISMA method was used to select the papers to include in the analysis. Then, for each paper, several data were recorded: the metadata of the paper (title, authors, journal, year, etc.), the analytical methods used for the determination of the liquids and the emisions, the chemical compounds found and their concentrations (if available) the funding source, etc. In the case of particles, in addition of the chemical analysis (if available), the physical characteristics of the particles analyzed are also presented. At the next step, those data were put in appropriate tables and analysed.
RESULTS:
This work is ongoing and the final results are not fully available. Until mid of 2025, 109 papers deal with the composition of eliquids and 330 with the compounds emitted from electronic cigarettes. Totally, 439 compounds are detected in the eliquids and, in the emissions, 58 metals and 1058 different chemical compounds are detected, and the particles are analysed using 29 different physical characteritics (number, mass, etc). The next step is the presentation of the impact of funding (industry, independent research) on the detected emissions, the clustering of those compounds in chemical famillies, the evolutiuon of the compound on time, and a focus on the known toxics.
CONCLUSIONS:
Several hundreds of chemical compounds are reported in the literature in the case of the eliquids and emissions of electronic cigarettes. Aldo, several works report and analyze the emissions of particles.The next step is the analysis of the toxicological characteritics of those compounds.
The electronic cigarettes are since some years in the market. The technology of those products evolved during those years; the same is also valid in the case of liquids composition. This work analyses the published works and synthetise the data on the chemical compounds found in the liquids and the emissions of electronic cigarettes.
METHODS:
Scopus is used as database for the published works. Two searches were performed, using appripriate keywords, one for the composition of e-liquids and one for emissions. The PRISMA method was used to select the papers to include in the analysis. Then, for each paper, several data were recorded: the metadata of the paper (title, authors, journal, year, etc.), the analytical methods used for the determination of the liquids and the emisions, the chemical compounds found and their concentrations (if available) the funding source, etc. In the case of particles, in addition of the chemical analysis (if available), the physical characteristics of the particles analyzed are also presented. At the next step, those data were put in appropriate tables and analysed.
RESULTS:
This work is ongoing and the final results are not fully available. Until mid of 2025, 109 papers deal with the composition of eliquids and 330 with the compounds emitted from electronic cigarettes. Totally, 439 compounds are detected in the eliquids and, in the emissions, 58 metals and 1058 different chemical compounds are detected, and the particles are analysed using 29 different physical characteritics (number, mass, etc). The next step is the presentation of the impact of funding (industry, independent research) on the detected emissions, the clustering of those compounds in chemical famillies, the evolutiuon of the compound on time, and a focus on the known toxics.
CONCLUSIONS:
Several hundreds of chemical compounds are reported in the literature in the case of the eliquids and emissions of electronic cigarettes. Aldo, several works report and analyze the emissions of particles.The next step is the analysis of the toxicological characteritics of those compounds.
| eISSN: | 2459-3087 |
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