Stationary and portable multipollutant monitors for high-spatiotemporal-resolution air quality studies including online calibration.
Stationary and portable multipollutant monitors for high-spatiotemporal-resolution air quality studies including online calibration.
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用于高时空分辨率空气质量研究的固定和便携式多污染物监测器，包括在线校准。
DOI：
10.5194/amt-14-995-2021
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发表时间：
2021-03
影响因子：
3.8
通讯作者：
Gentner, Drew R.
中科院分区：
文献类型：
--
作者：
Buehler, Colby;Xiong, Fulizi;Zamora, Misti Levy;Skog, Kate M.;Kohrman-Glaser, Joseph;Colton, Stefan;McNamara, Michael;Ryan, Kevin;Redlich, Carrie;Bartos, Matthew;Wong, Brandon;Kerkez, Branko;Koehler, Kirsten;Gentner, Drew R.
大气污染物的分布和动态是时空异质性的，由于在排放，运输，化学和沉积的变化。为了在高时空分辨率下了解这些过程及其对空气质量和个人暴露的影响，我们提出了定制的低成本空气质量监测器，用于测量与人类健康和气候相关的污染物浓度，包括气体（例如，O3、NO、NO2、CO、CO2、CH 4和SO2）和粒度分辨（0.3-10 μm）颗粒物。这些设备通过蜂窝通信传输传感器数据和位置，并能够提供低至二级时间分辨率的浓度数据。我们生产两种型号：一种设计用于固定（或移动的平台）操作，另一种可穿戴、便携式模型用于直接测量呼吸区中的个人暴露。为了解决传感器漂移和环境敏感性的持续问题（例如，相对湿度和温度），我们提出了第一个在线校准系统，专门为低成本的空气质量传感器设计，以校准零和跨度浓度每小时到每周的时间间隔。在位于康涅狄格州纽黑文、马里兰州巴尔的摩和纽约市的多个室外和室内场所的多个环境中，测试和验证了该产品。所评估的污染物（O3、NO2、NO、CO、CO2和PM2.5）相对于参考仪器（例如，r = 0.66-0.98），在城市实地评估中具有快速的e-折叠响应时间（≤1分钟），使其适用于大规模网络部署和小规模有针对性的实验在广泛的时间分辨率。我们还讨论了有关监视器设计、构造、系统测试和部署的最佳实践。
The distribution and dynamics of atmospheric pollutants are spatiotemporally heterogeneous due to variability in emissions, transport, chemistry, and deposition. To understand these processes at high spatiotemporal resolution and their implications for air quality and personal exposure, we present custom, low-cost air quality monitors that measure concentrations of contaminants relevant to human health and climate, including gases (e.g., O3, NO, NO2, CO, CO2, CH4, and SO2) and size-resolved (0.3–10 μm) particulate matter. The devices transmit sensor data and location via cellular communications and are capable of providing concentration data down to second-level temporal resolution. We produce two models: one designed for stationary (or mobile platform) operation and a wearable, portable model for directly measuring personal exposure in the breathing zone. To address persistent problems with sensor drift and environmental sensitivities (e.g., relative humidity and temperature), we present the first online calibration system designed specifically for low-cost air quality sensors to calibrate zero and span concentrations at hourly to weekly intervals. Monitors are tested and validated in a number of environments across multiple outdoor and indoor sites in New Haven, CT; Baltimore, MD; and New York City. The evaluated pollutants (O3, NO2, NO, CO, CO2, and PM2.5) performed well against reference instrumentation (e.g., r = 0.66–0.98) in urban field evaluations with fast e-folding response times (≤1 min), making them suitable for both large-scale network deployments and smaller-scale targeted experiments at a wide range of temporal resolutions. We also provide a discussion of best practices on monitor design, construction, systematic testing, and deployment.
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影响因子：
5
作者：
Popoola, Olalekan A. M.;Stewart, Gregor B.;Jones, Roderic L.
通讯作者：
Jones, Roderic L.
DOI：
10.1016/s0140-6736(17)30505-6
发表时间：
2017-05-13
期刊：
Lancet (London, England)
影响因子：
--
作者：
Cohen AJ;Brauer M;Burnett R;Anderson HR;Frostad J;Estep K;Balakrishnan K;Brunekreef B;Dandona L;Dandona R;Feigin V;Freedman G;Hubbell B;Jobling A;Kan H;Knibbs L;Liu Y;Martin R;Morawska L;Pope CA 3rd;Shin H;Straif K;Shaddick G;Thomas M;van Dingenen R;van Donkelaar A;Vos T;Murray CJL;Forouzanfar MH
通讯作者：
Forouzanfar MH
影响因子：
5.1
作者：
Kheirbek, Iyad;Wheeler, Katherine;Walters, Sarah;Kass, Daniel;Matte, Thomas
通讯作者：
Matte, Thomas
影响因子：
11.4
作者：
Brauer, Michael;Amann, Markus;Burnett, Rick T.;Cohen, Aaron;Dentener, Frank;Ezzati, Majid;Henderson, Sarah B.;Krzyzanowski, Michal;Martin, Randall V.;Van Dingenen, Rita;van Donkelaar, Aaron;Thurston, George D.
通讯作者：
Thurston, George D.
DOI：
10.1164/rccm.200611-1627oc
发表时间：
2007-08-15
影响因子：
24.7
作者：
Chuang, Kai-Jen;Chan, Chang-Chuan;Tang, Chin-Sheng
通讯作者：
Tang, Chin-Sheng