| Title: | Assessment of indoor air quality at an electronic cigarette (Vaping) convention |
| Author(s): | Chen R; Aherrera A; Isichei C; Olmedo P; Jarmul S; Cohen JE; Navas-Acien A; Rule AM; |
| Address: | "Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. Department of Health, Behavior and Society and Institute for Global Tobacco Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. arule@jhsph.edu" |
| Journal Title: | J Expo Sci Environ Epidemiol |
| DOI: | 10.1038/s41370-017-0005-x |
| ISSN/ISBN: | 1559-064X (Electronic) 1559-0631 (Linking) |
| Abstract: | "E-cigarette (vaping) conventions are public events promoting electronic cigarettes, in which indoor use of e-cigarettes is allowed. The large concentration of people using e-cigarettes and poor air ventilation can result in indoor air pollution. In order to estimate this worst-case exposure to e-cigarettes, we evaluated indoor air quality in a vaping convention in Maryland (MD), USA. Real-time concentrations of particulate matter (PM(10)) and real-time total volatile organic compounds (TVOCs), CO(2) and NO(2) concentrations were measured. Integrated samples of air nicotine and PM(10) concentrations were also collected. The number of attendees was estimated to range from 75 to 600 at any single observation time. The estimated 24-h time-weighted average (TWA) PM(10) was 1800 mug/m(3), 12-fold higher than the EPA 24-h regulation (150 mug/m(3)). Median (range) indoor TVOCs concentration was 0.13 (0.04-0.3) ppm. PM(10) and TVOC concentrations were highly correlated with CO(2) concentrations, indicating the high number of people using e-cigarettes and poor indoor air quality. Air nicotine concentration was 125 mug/m(3), equivalent to concentrations measured in bars and nightclubs. E-cigarette aerosol in a vaping convention that congregates many e-cigarette users is a major source of PM(10), air nicotine and VOCs, impairing indoor air quality. These findings also raise occupational concerns for e-cigarette vendors and other venue staff workers" |
| Keywords: | "Aerosols/analysis/chemistry Air Pollutants/analysis Air Pollution, Indoor/*analysis Carbon Dioxide/*analysis Congresses as Topic Electronic Nicotine Delivery Systems Environmental Monitoring Humans Maryland Nicotine/*analysis Nitrogen Dioxide/*analysis Pa;" |
| Notes: | "MedlineChen, Rui Aherrera, Angela Isichei, Chineye Olmedo, Pablo Jarmul, Stephanie Cohen, Joanna E Navas-Acien, Ana Rule, Ana M eng Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't 2017/12/31 J Expo Sci Environ Epidemiol. 2018 Nov; 28(6):522-529. doi: 10.1038/s41370-017-0005-x. Epub 2017 Dec 29" |
