Evaluation of Cairpol and Aeroqual Air Sensors in Biomass Burning Plumes

Atmosphere

Maribel Colón¹  Matthew S. Landis¹  Russell W. Long¹  Andrew R. Whitehill¹  Andrew Habel²  Shawn P. Urbanski³ 

[1] Center for Environmental Measurement and Modeling, United States Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA;Jacobs Technology Inc., Research Triangle Park, NC 27711, USA;U.S. Forest Service, Rocky Mountain Research Station, Missoula, MT 59808, USA;

关键词: sensor;    carbon monoxide;    carbon dioxide;    nitrogen dioxide;    wildland fire;   

DOI  :  10.3390/atmos13060877

来源: DOAJ

【 摘 要 】

Cairpol and Aeroqual air quality sensors measuring CO, CO₂, NO₂, and other species were tested on fresh biomass burning plumes in field and laboratory environments. We evaluated the sensors by comparing 1 min sensor measurements to collocated reference instrument measurements. The sensors were evaluated based on the coefficient of determination (r²) between the sensor and reference measurements, as well as by the accuracy, collocated precision, root mean square error (RMSE), and other metrics. In general, CO and CO₂ sensors performed well (in terms of accuracy and r² values) compared to NO₂ sensors. Cairpol CO and NO₂ sensors had better sensor-versus-sensor agreement (i.e., collocated precision) than Aeroqual CO and NO₂ sensors of the same species. Tests of other sensors (e.g., NH₃, H₂S, VOC, and NMHC) provided more inconsistent results and need further study. Aeroqual NO₂ sensors had an apparent O₃ interference that was not observed in the Cairpol NO₂ sensors. Although the sensor accuracy lags that of reference-level monitors, with location-specific calibrations they have the potential to provide useful data about community air quality and personal exposure to smoke impacts.

【 授权许可】

Unknown