AIRduino: On-Demand Atmospheric Secondary Organic Aerosol Measurements with a Mobile Arduino Multisensor,Journal of Chemical Education

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AIRduino: On-Demand Atmospheric Secondary Organic Aerosol Measurements with a Mobile Arduino Multisensor
Journal of Chemical Education ( IF 2.5 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.jchemed.9b00744
Kelly A. Rodriguez-Vasquez ₁ , Aaron M. Cole ₁ , Desislava Yordanova ₁ , Rachel Smith ₁ , Nathanael M. Kidwell ₁

Affiliation

To empower high school and undergraduate students to become citizen scientists, we describe the design, construction, and operation of a multisensor device based on Arduino microcontroller technology to record atmospheric measurements relevant to secondary organic aerosols (SOAs). The handheld “AIRduino” multisensor device was built and deployed by undergraduate and high school students to simultaneously measure the concentrations of ozone (O₃), volatile organic compounds (VOCs), temperature, humidity, and aerosol particulate matter with 2.5 and 10 μm diameters (PM_2.5 and PM₁₀). Paired with a smartphone via Bluetooth, the data are streamed in real-time to an app interface for on-demand SOA profiling, and the results are recorded with on-board storage using a storage device (SD) card. Furthermore, the AIRduino SOA measurements are calibrated with the regional atmospheric data from the CAPABLE site at the NASA Langley Research Center. Subsequently, the regional chemistry composition was monitored for several days with the AIRduino device to correlate gas-phase molecule concentrations to the formation of aerosols. The mobile AIRduino multisensor device is low-cost and readily accessible for students, thus making it an ideal vehicle to obtain crowd-sourced SOA measurements and to foster excitement in science, technology, engineering, and mathematics.

中文翻译：

AIRduino：使用移动Arduino多传感器进行按需大气二次有机气溶胶测量

为了使高中生和本科生成为公民科学家，我们描述了一种基于Arduino微控制器技术的多传感器设备的设计，构造和操作，该设备可记录与次要有机气溶胶（SOA）相关的大气测量值。手持式“ AIRduino”多传感器设备由大学生和高中生制造和部署，可同时测量直径为2.5和10μm的臭氧（O ₃），挥发性有机化合物（VOC），温度，湿度和气溶胶颗粒物的浓度。（PM _2.5和PM ₁₀）。通过蓝牙与智能手机配对后，数据将实时流传输到应用程序界面，以进行按需SOA分析，并使用存储设备（SD）卡将结果记录在板载存储中。此外，AIRduino SOA测量值是使用NASA兰利研究中心CAPABLE站点的区域大气数据进行校准的。随后，使用AIRduino设备对区域化学成分进行了几天的监测，以将气相分子浓度与气溶胶的形成相关联。移动式AIRduino多传感器设备价格低廉，便于学生使用，因此使其成为获取众包SOA测量值并激发科学，技术，工程和数学兴趣的理想工具。

更新日期：2020-01-14

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