Exposure Assessment of Environmental Tobacco Aerosol from Heated Tobacco Products: Nicotine and PM Exposures under Two Limited Conditions
| Autor: | Fumihiko Wakao, Tokuaki Shobayashi, Teiji Takei, Tomoyasu Hirano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
exposure assessment
Indoor air Health Toxicology and Mutagenesis lcsh:Medicine complex mixtures Article particulate matter 2.5 (PM2.5) Nicotine 03 medical and health sciences Shower 0302 clinical medicine Indoor air quality medicine Humans Cigarette smoke 030212 general & internal medicine heated tobacco products (HTPs) Exposure assessment Aerosols lcsh:R Public Health Environmental and Occupational Health Environmental Exposure Tobacco Products Particulates Aerosol Air Pollution Indoor Environmental chemistry Environmental science Particulate Matter Tobacco Smoke Pollution secondhand aerosol 030217 neurology & neurosurgery medicine.drug policy nicotine |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 17, Iss 8536, p 8536 (2020) International Journal of Environmental Research and Public Health Volume 17 Issue 22 |
| ISSN: | 1661-7827 1660-4601 |
| Popis: | It is too early to provide a clear answer on the impact of exposure to the second-hand aerosol of heated tobacco products (HTPs) in the planning of policy for smoke-free indoors legislation. Here, we conducted a preliminary study to evaluate indoor air quality with the use of HTPs. We first measured the concentration of nicotine and particulate matter (PM2.5) in the air following 50 puffs in the use of HTPs or cigarettes in a small shower cubicle. We then measured these concentrations in comparison with the use equivalent of smoking 5.4 cigarettes per hour in a 25 m3 room, as a typical indoor environment test condition. In the shower cubicle test, nicotine concentrations in indoor air using three types of HTP, namely IQOS, glo, and ploomTECH, were 25.9&ndash 257 &mu g/m3. These values all exceed the upper bound of the range of tolerable concentration without health concerns, namely 3 µ g/m3. In particular, the indoor PM2.5 concentration of about 300 to 500 &mu g/m3 using IQOS or glo in the shower cubicle is hazardous. In the 25 m3 room test, in contrast, nicotine concentrations in indoor air with the three types of HTP did not exceed 3 &mu g/m3. PM2.5 concentrations were below the standard value of 15 &mu g/m3 per year for IQOS and ploomTECH, but were slightly high for glo, with some measurements exceeding 100 &mu g/m3. These results do not negate the inclusion of HTPs within a regulatory framework for indoor tolerable use from exposure to HTP aerosol, unlike cigarette smoke. |
| Databáze: | OpenAIRE |
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