Ambient and laboratory evaluation of a low-cost particulate matter sensor.
Ambient and laboratory evaluation of a low-cost particulate matter sensor.
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DOI：
10.1016/j.envpol.2016.12.039
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发表时间：
2017-02
影响因子：
8.9
通讯作者：
Butterfield, A.
中科院分区：
文献类型：
--
作者：
Kelly, K. E.;Whitaker, J.;Petty, A.;Widmer, C.;Dybwad, A.;Sleeth, D.;Martin, R.;Butterfield, A.
低成本、基于光散射的颗粒物（PM）传感器正变得越来越广泛可用，并且由于其低成本和提供高空间和时间分辨率PM信息的能力而越来越多地部署在周围和室内环境中。研究人员已经开始在实验室和环境条件下评估其中一些传感器。在这项研究中，一个低成本的，颗粒物传感器（Plantower PMS 1003/3003）使用的社区空气质量网络进行评估，在一个受控的风洞环境和周围环境中，在几个冬季的时间，冷池事件与高环境PM水平。在风洞中，PMS传感器的性能进行了比较，两个研究级，光散射仪器，并在环境试验中，传感器的性能进行了比较，两个联邦等效（一个锥形元件振荡微量天平和β衰减监测器）和重量联邦参考方法（FEM/FRM）以及一个研究级仪器（GRIMM）。PMS传感器响应与风洞试验中的研究级仪器相关性良好，其响应在测试的浓度范围内（200-850 μg/m3）呈线性。在环境测试中，该PM传感器与重量分析方法的相关性比以前的研究更好，相关系数为0.88。然而，需要在各种环境条件下进行额外的测量。尽管PMS传感器在环境条件下与研究级仪器的FRM/FEM相关，但其响应随颗粒特性的变化程度要比研究级仪器大得多。此外，PMS传感器高估了环境PM浓度，并且当浓度超过40 μg/m3时，PMS传感器开始表现出非线性响应。这些结果具有重要的意义，从低成本的传感器网络的通信结果，他们强调了使用适当的校正因子的目标环境条件下，如果用户想要比较的结果FEM/FRM的重要性。
Low-cost, light-scattering-based particulate matter (PM) sensors are becoming more widely available and are being increasingly deployed in ambient and indoor environments because of their low cost and ability to provide high spatial and temporal resolution PM information. Researchers have begun to evaluate some of these sensors under laboratory and environmental conditions. In this study, a low-cost, particulate matter sensor (Plantower PMS 1003/3003) used by a community air-quality network is evaluated in a controlled wind-tunnel environment and in the ambient environment during several winter-time, cold-pool events that are associated with high ambient levels of PM. In the wind-tunnel, the PMS sensor performance is compared to two research-grade, light-scattering instruments, and in the ambient tests, the sensor performance is compared to two federal equivalent (one tapered element oscillating microbalance and one beta attenuation monitor) and gravimetric federal reference methods (FEMs/FRMs) as well as one research-grade instrument (GRIMM). The PMS sensor response correlates well with research-grade instruments in the wind-tunnel tests, and its response is linear over the concentration range tested (200–850 μg/m3). In the ambient tests, this PM sensor correlates better with gravimetric methods than previous studies with correlation coefficients of 0.88. However additional measurements under a variety of ambient conditions are needed. Although the PMS sensor correlated as well as the research-grade instrument to the FRM/FEMs in ambient conditions, its response varies with particle properties to a much greater degree than the research-grade instrument. In addition, the PMS sensors overestimate ambient PM concentrations and begin to exhibit a non-linear response when concentrations exceed 40 μg/m3. These results have important implications for communicating results from low-cost sensor networks, and they highlight the importance of using an appropriate correction factor for the target environmental conditions if the user wants to compare the results to FEM/FRMs.
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影响因子：
3.8
作者：
Holstius, D. M.;Pillarisetti, A.;Seto, E.
通讯作者：
Seto, E.
影响因子：
3.7
作者：
Austin, Elena;Novosselov, Igor;Yost, Michael G.
通讯作者：
Yost, Michael G.
影响因子：
3
作者：
Chow, JC;Watson, JG;Richards, LW
通讯作者：
Richards, LW
影响因子：
0.5
作者：
Agarwal, Neil K.;Sharma, Prerna;Agarwal, Shashi K.
通讯作者：
Agarwal, Shashi K.
DOI：
10.1080/10962247.2013.774819
发表时间：
2013-05-01
影响因子：
2.7
作者：
Kelly, Kerry E.;Kotchenruther, Robert;Silcox, Geoffrey D.
通讯作者：
Silcox, Geoffrey D.