微粒
环境科学
空气污染
防毒面具
湿度
污染物
暴露评估
环境化学
乙苯
环境工程
废物管理
甲苯
化学
环境卫生
气象学
工程类
医学
物理
有机化学
作者
Jessica Tryner,Casey Quinn,Emilio Molina Rueda,Marie J. Andales,Christian L’Orange,John Mehaffy,Ellison Carter,John Volckens
标识
DOI:10.1021/acs.est.3c02238
摘要
Exposure to air pollution is a leading risk factor for disease and premature death, but technologies for assessing personal exposure to particulate and gaseous air pollutants, including the timing and location of such exposures, are limited. We developed a small, quiet, wearable monitor, called the AirPen, to quantify personal exposures to fine particulate matter (PM2.5) and volatile organic compounds (VOCs). The AirPen combines physical sample collection (PM onto a filter and VOCs onto a sorbent tube) with a suite of low-cost sensors (for PM, VOCs, temperature, pressure, humidity, light intensity, location, and motion). We validated the AirPen against conventional personal sampling equipment in the laboratory and then conducted a field study to measure at-work and away-from-work exposures to PM2.5 and VOCs among employees at an agricultural facility in Colorado, USA. The resultant sampling and sensor data indicated that personal exposures to benzene, toluene, ethylbenzene, and xylenes were dominated by a specific workplace location. These results illustrate how the AirPen can be used to advance our understanding of personal exposure to air pollution as a function of time, location, source, and activity, even in the absence of detailed activity diary data.
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