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| DOI | 10.1016/j.atmosenv.2020.117731 |
| Characteristics of secondhand cannabis smoke from common smoking methods: Calibration factor, emission rate, and particle removal rate | |
| Zhao T.; Cheng K.-C.; Ott W.R.; Wallace L.; Hildemann L.M. | |
| 发表日期 | 2020 |
| ISSN | 1352-2310 |
| 卷号 | 242 |
| 英文摘要 | The widespread legalization of recreational cannabis use raises growing concerns about exposure to secondhand cannabis smoke (SCS). However, few studies are characterizing fine particulate matter (PM2.5) exposure from SCS. Here, we determined PM2.5 calibration factors (CFs) for SCS from four common cannabis consuming methods—glass pipe smoking, joint smoking, bong smoking, and cannabis pen vaping—for widely used optical monitors (SidePak™ AM510, TSI Inc., Shoreview, MN) by comparing the monitors with gravimetric mass measurements. We furthermore investigated the emission rate, particle size distribution, and particle removal rate of SCS. The CFs of SidePak PM2.5 monitors measuring the four types of SCS were 0.31 (SE = 0.02), 0.39 (SE = 0.02), 0.40 (SE = 0.01), and 0.44 (SE = 0.03), respectively. The arithmetic mean emission rates of the four SCS sources were ~2–6 times that of secondhand tobacco smoke (STS) on a per-puff basis. The fresh SCS (1-min after smoking) showed a bimodal size distribution—one mode located at ~380–420 nm and another at ~800–840 nm. Under low-ventilation conditions, the indoor removal rates of SCS from cannabis vaping were slightly higher (i.e., 0.61–0.77/h) than those for the other three sources (i.e., 0.35–0.53/h). © 2020 Elsevier Ltd |
| 关键词 | AerosolsCalibration factorCannabisEmission rateMarijuanaParticulate matterPM2.5Removal rateSize distribution |
| 语种 | 英语 |
| scopus关键词 | Calibration; Indoor air pollution; Particle size; Particle size analysis; Particulate emissions; Size distribution; Ventilation; Arithmetic mean; Bimodal size distribution; Calibration factors; Fine particulate matter (PM2.5); Gravimetric mass; Low ventilation; Optical monitors; Particle removal; Smoke; cannabis; tobacco smoke; detection method; emission; particle size; particulate matter; pollutant removal; size distribution; smoke; smoking; aerosol; Article; cannabis smoking; cigarette smoking; evaporation; heating; human; particle size; particulate matter; passive smoking; pipe smoking; priority journal; vaping; Cannabis; Cannabis sativa; Neptunia; Nicotiana tabacum |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248915 |
| 作者单位 | Civil and Environmental Engineering, Stanford University, StanfordCA 94305, United States |
| 推荐引用方式 GB/T 7714 | Zhao T.,Cheng K.-C.,Ott W.R.,et al. Characteristics of secondhand cannabis smoke from common smoking methods: Calibration factor, emission rate, and particle removal rate[J],2020,242. |
| APA | Zhao T.,Cheng K.-C.,Ott W.R.,Wallace L.,&Hildemann L.M..(2020).Characteristics of secondhand cannabis smoke from common smoking methods: Calibration factor, emission rate, and particle removal rate.ATMOSPHERIC ENVIRONMENT,242. |
| MLA | Zhao T.,et al."Characteristics of secondhand cannabis smoke from common smoking methods: Calibration factor, emission rate, and particle removal rate".ATMOSPHERIC ENVIRONMENT 242(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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