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Environ Sci Technol

Title:		Heated Tobacco Products: Volatile Emissions and Their Predicted Impact on Indoor Air Quality
Author(s):		Cancelada L; Sleiman M; Tang X; Russell ML; Montesinos VN; Litter MI; Gundel LA; Destaillats H;
Address:		"Indoor Environment Group , Lawrence Berkeley National Laboratory , 1 Cyclotron Road MS70-108B , Berkeley , California 94720 , United States. Division Quimica de la Remediacion Ambiental , CNEA-CONICET , Avenida Gral. Paz 1499 , 1650 San Martin , Buenos Aires , Argentina. Universite Clermont Auvergne, CNRS, SIGMA Clermont , Institut de Chimie de Clermont Ferrand (ICCF) , F-63000 Clermont-Ferrand , France. Centro Tecnologias Quimicas , FRBA-UTN , Medrano 951 , 1179 CABA , Argentina. Instituto de Investigacion e Ingenieria Ambiental , Universidad de General San Martin , Campus Miguelete, Av. 25 de Mayo y Francia , 1650 San Martin , Buenos Aires , Argentina"
Journal Title:		Environ Sci Technol
Year:		2019
Volume:		20190617
Issue:		13
Page Number:		7866 - 7876
DOI:		10.1021/acs.est.9b02544
ISSN/ISBN:		1520-5851 (Electronic) 0013-936X (Linking)
Abstract:		"This study characterized emissions from IQOS, a heated tobacco product promoted as a less harmful alternative to cigarettes. Consumable tobacco plugs were analyzed by headspace GC/MS to assess the influence of heating temperature on the emission profile. Yields of major chemical constituents increased from 4.1 mg per unit at 180 degrees C to 6.2 mg at 200 degrees C, and 10.5 mg at 220 degrees C. The Health Canada Intense smoking regime was used to operate IQOS in an environmental chamber, quantifying 33 volatile organic compounds in mainstream and sidestream emissions. Aldehydes, nitrogenated species, and aromatic species were found, along with other harmful and potentially harmful compounds. Compared with combustion cigarettes, IQOS yields were in most cases 1-2 orders of magnitude lower. However, yields were closer to, and sometimes higher than electronic cigarettes. Predicted users' daily average intake of benzene, formaldehyde, acetaldehyde and acrolein were 39 mug, 32 mug, 2.2 mg and 71 mug, respectively. Indoor air concentrations were estimated for commonly encountered scenarios, with acrolein levels of concern (over 0.35 mug m(-3)) derived from IQOS used in homes and public spaces. Heated tobacco products are a weaker indoor pollution source than conventional cigarettes, but their impacts are neither negligible nor yet fully understood"
Keywords:		"*Air Pollutants *Air Pollution, Indoor Canada *Electronic Nicotine Delivery Systems Tobacco *Tobacco Products *Tobacco Smoke Pollution *Volatile Organic Compounds;"
Notes:		"MedlineCancelada, Lucia Sleiman, Mohamad Tang, Xiaochen Russell, Marion L Montesinos, V Nahuel Litter, Marta I Gundel, Lara A Destaillats, Hugo eng 2019/06/01 Environ Sci Technol. 2019 Jul 2; 53(13):7866-7876. doi: 10.1021/acs.est.9b02544. Epub 2019 Jun 17"