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Ajouter le résultat dans votre panier Affiner la rechercheEffects of aftermarket electronic cigarette pods on device power output and nicotine, carbonyl, and ros emissions / Soha Talih (2023)
Titre : Effects of aftermarket electronic cigarette pods on device power output and nicotine, carbonyl, and ros emissions Type de document : document électronique Auteurs : Soha Talih, Auteur ; Nareg Karaoghlnanian, Auteur ; Rola Salman, Auteur Editeur : ACS Publications Année de publication : 2023 Collection : Chemical Research Toxicology num. 36(12) Importance : 8 p. Présentation : ill., graph.; tab. Langues : Anglais (eng) Catégories : [TABAC] CANDIDATS:pod
[TABAC] chimie du tabac:constituant:alcaloïde:nicotine
[TABAC] chimie du tabac:substance toxique
[TABAC] chimie du tabac:tabac fumé:cigarette:cigarette électronique
[TABAC] étude
[TABAC] tabagisme:risqueIndex. décimale : TA 1.1.1 Cigarettes (« normales », électroniques, aromatisées,…) Résumé : Aftermarket pods designed to operate with prevalent electronic nicotine delivery system (ENDS) products such as JUUL are marketed as low-cost alternatives that allow the use of banned flavored liquids. Subtle differences in the design or construction of aftermarket pods may intrinsically modify the performance of the ENDS device and the resulting nicotine and toxicant emissions relative to the original equipment manufacturer's product. In this study, we examined the electrical output of a JUUL battery and the aerosol emissions when four different brands of aftermarket pods filled with an analytical-grade mixture of propylene glycol, glycerol, and nicotine were attached to it and puffed by machine. The aerosol emissions examined included total particulate matter (TPM), nicotine, carbonyl compounds (CCs), and reactive oxygen species (ROS). We also compared the puff-resolved power and TPM outputs of JUUL and aftermarket pods. We found that all aftermarket pods drew significantly greater electrical power from the JUUL battery during puffing and had different electrical resistances and resistivity. In addition, unlike the case with the original pods, we found that with the aftermarket pods, the power provided by the battery did not vary greatly with flow rate or puff number, suggesting impairment of the temperature control circuitry of the JUUL device when used with the aftermarket pods. The greater power output with the aftermarket pods resulted in up to three times greater aerosol and nicotine output than the original product. ROS and CC emissions varied widely across brands. These results highlight that the use of aftermarket pods can greatly modify the performance and emissions of ENDS. Consumers and public health authorities should be made aware of the potential increase in the level of toxicant exposure when aftermarket pods are employed. En ligne : https://doi.org/10.1021/acs.chemrestox.3c00213 Format de la ressource électronique : Article en ligne Permalink : https://biblio.fares.be/opac_css/index.php?lvl=notice_display&id=10600 Aucun avis, veuillez vous identifier pour ajouter le vôtre !
Titre : Metal concentrations in e-cigarette aerosol samples : a comparison by device type and flavor Type de document : document électronique Auteurs : Angela Aherrera, Auteur ; Joyce Jy Lin, Auteur ; Rui chen, Auteur Editeur : National Institute of Environmental Health Sciences Année de publication : 2023 Collection : Environmental health perspectives, ISSN 0091-6765 num. 131(12) Importance : p. 1-13 Présentation : graph.; tab. Langues : Anglais (eng) Catégories : [TABAC] CANDIDATS:pod
[TABAC] chimie du tabac:constituant:additif:agent de saveur
[TABAC] chimie du tabac:tabac fumé:cigarette:cigarette électronique
[TABAC] étude
[TABAC] tabagisme:effet du tabac:altération des fonctions sensorielles:altération du goûtMots-clés : MOD Index. décimale : TA 1.1.1 Cigarettes (« normales », électroniques, aromatisées,…) Résumé : Background:
The rapid evolution of electronic cigarette (e-cigarette) products warrants surveillance of the differences in exposure across device types—modifiable devices (MODs), cartridge (“pod”)-containing devices (PODs), disposable PODs (d-PODs)—and flavors of the products available on the market.
Objective:
This study aimed to measure and compare metal aerosol concentrations by device type and common flavors.
Methods:
We collected aerosol from 104 MODs, 67 PODs (four brands: JUUL, Bo, Suorin, PHIX), and 23 d-PODs (three brands: ZPOD, Bidi, Stig) via droplet deposition in a series of conical pipette tips. Metals and metalloids [aluminum (Al), arsenic (As), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb), antimony (Sb), tin (Sn), and zinc (Zn)] were measured using inductively coupled plasma mass spectrometry (ICP-MS), results were log-transformed for statistical analysis, and concentrations are reported in aerosol units (mg/m3).
Results:
Of the 12 elements analyzed, concentrations were statistically significantly higher in MOD devices, except for Co and Ni, which were higher in PODs and d-PODs. Of the POD brands analyzed, PHIX had the highest median concentrations among four metals (Al, Ni, Pb, and Sn) compared to the rest of the POD brands. According to POD flavor, seven metals were three to seven orders of magnitude higher in tobacco-flavored aerosol compared to those in mint and mango flavors. Among the d-POD brands, concentrations of four metals (Al, Cu, Ni, and Pb) were higher in the ZPOD brand than in Bidi Stick and Stig devices. According to d-POD flavor, only Cr concentrations were found to be statistically significantly higher in mint than tobacco-flavored d-PODs.
Discussion:
We observed wide variability in aerosol metal concentrations within and between the different e-cigarette device types, brands, and flavors. Overall, MOD devices generated aerosols with higher metal concentrations than PODs and d-PODs, and tobacco-flavored aerosols contained the highest metal concentrations. Continued research is needed to evaluate additional factors (i.e., nicotine type) that contribute to metal exposure from new and emerging e-cigarette devices in order to inform policy.En ligne : https://doi.org/10.1289/EHP11921 Format de la ressource électronique : Article en ligne Permalink : https://biblio.fares.be/opac_css/index.php?lvl=notice_display&id=10578 Aucun avis, veuillez vous identifier pour ajouter le vôtre !
Titre : Une nouveauté : les sels de nicotine et les "pods" Type de document : document électronique Auteurs : Pierre Bartsch (1939 - 2023), Auteur Année de publication : 2019 Importance : 4 p. Langues : Français (fre) Catégories : [TABAC] CANDIDATS:pod
[TABAC] chimie du tabac:constituant:alcaloïde:nicotine
[TABAC] chimie du tabac:tabac fumé:cigarette:cigarette électroniqueIndex. décimale : TA 1.1.1 Cigarettes (« normales », électroniques, aromatisées,…) Permalink : https://biblio.fares.be/opac_css/index.php?lvl=notice_display&id=10124 Aucun avis, veuillez vous identifier pour ajouter le vôtre !
