Comparison of light scattering devices and impactors for particulate measurements in indoor, outdoor, and personal environments
Comparison of light scattering devices and impactors for particulate measurements in indoor, outdoor, and personal environments
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DOI：
10.1021/es0112644
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发表时间：
2002-07-01
影响因子：
11.4
通讯作者：
Larson, TV
中科院分区：
文献类型：
--
作者：
Liu, LJS;Slaughter, JC;Larson, TV
由于缺乏足够的监测设备，在健康影响研究中对个体颗粒物（PM）暴露的短期监测很少。最近开发的小型便携式光散射设备，包括辐射浊度计（neph）和个人数据存储器（pDR），使这种监测成为可能。本文评估了被动式pDR和neph（无任何尺寸的分馏入口）的性能，并与哈佛撞击器（H1（2.5））和哈佛个人环境监测器（HPEM2.5）在室内、室外和个人环境中的PM2.5测量值进行了比较。这些测量是在住宅和整个大都市西雅图地区的非吸烟老年受试者的人，并代表了广泛的光散射测量直接相关的曝光和健康影响。在低PM水平下，nephs提供了更精细的分辨率和更精确的测量（精度= 3-8%，不确定度= 2.8 x 10（-7）m（-1）或
Short-term monitoring of individual particulate matter (PM) exposures on subjects and inside residences in health effect studies have been sparse due to the lack of adequate monitoring devices. The recent development of small and portable light scattering devices, including the Radiance nephelometer(neph) and the personal DataRAM (pDR) has made this monitoring possible. This paper evaluates the performance of both the passive pDR and neph (without any size fractionation inlet) against measurements from both Harvard impactors (Hl(2.5)) and Harvard personal environmental monitors (HPEM2.5)for PM2.5 in indoor, outdoor, and personal settings. These measurements were taken at the residences and on the person of nonsmoking elderly subjects across the metropolitan Seattle area and represent a wide range of light scattering measurements directly related to exposures and health effects. At low PM levels, nephs provided finer resolution and more precise measurements (precision = 3-8% and uncertainty = 2.8 x 10(-7) m(-1) or