Cho Yu Sung, Hong Seung Chan, Choi Jeongan, Jung Jae Hee
Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.
Green School, Korea University, Seoul 02841, Republic of Korea.
Sens Actuators B Chem. 2019 Apr 1;284:525-533. doi: 10.1016/j.snb.2018.12.155. Epub 2018 Dec 30.
We present a novel bioaerosol sampling system based on a wet-cyclone for real-time and continuous monitoring of airborne microorganisms. The Automated and Real-time Bioaerosol Sampler based on Wet-cyclone (ARBSW) continuously collects bioaerosols in a liquid medium and delivers the samples to a sensing device using a wireless remote control system. Based on a high air-to-liquid-flow-rate ratio (∼ 1.4 × 10) and a stable liquid thin film within a wet-cyclone, the system achieved excellent sampling performance as indicated by the high concentration and viability of bioaerosols (> 95% collection efficiency for > 0.5-μm-diameter particles, > 95% biological collection efficiency for and ). Furthermore, the continuous and real-time sampling performance of the ARBSW system under test-bed conditions and during a field test demonstrated that the ARBSW is capable of continuously monitoring bioaerosols in real time with high sensitivity. Therefore, the ARBSW shows promise for continuous real-time monitoring of bioaerosols and will facilitate the management of bioaerosol-related health and environmental issues.
我们提出了一种基于湿式旋风分离器的新型生物气溶胶采样系统，用于对空气中的微生物进行实时连续监测。基于湿式旋风分离器的自动实时生物气溶胶采样器（ARBSW）在液体介质中连续收集生物气溶胶，并使用无线遥控系统将样品输送到传感设备。基于高空气与液体流速比（约1.4×10）以及湿式旋风分离器内稳定的液体薄膜，该系统实现了出色的采样性能，生物气溶胶的高浓度和高活力表明了这一点（对于直径大于0.5μm的颗粒，收集效率>95%；对于[此处原文缺失具体粒径范围]，生物收集效率>95%）。此外，ARBSW系统在试验台条件下和现场测试期间的连续实时采样性能表明，ARBSW能够以高灵敏度实时连续监测生物气溶胶。因此，ARBSW在生物气溶胶的连续实时监测方面显示出前景，并将有助于管理与生物气溶胶相关的健康和环境问题。
