Open AccessStudy on the Uncertainty of the Calibration Device of PM2.5 Mass Concentration Monitor
Author(s) -
Junchen Zou,
Wei Fan,
Enjie Shi,
Xindong Lu,
Xingang Zhou,
Guoqiang Li,
Zhenxing Fan,
Huiyuan Liu,
Xueqiong Xu,
Xiuxiu Liu,
Lin Wang,
Wensi Liu,
Ye Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/450/1/012061
Subject(s) - calibration , mass concentration (chemistry) , environmental science , aerosol , measurement uncertainty , standard uncertainty , measure (data warehouse) , air quality index , uncertainty analysis , atmosphere (unit) , remote sensing , atmospheric sciences , chemistry , statistics , meteorology , mathematics , physics , computer science , data mining , geology
The fine particles (PM2.5) has become a major air pollution problem in China, and PM2.5 mass concentration monitor was used to measure the concentration of PM2.5, and whether it is accurate or not determines the quality of the atmosphere. In this study, the uncertainty of the calibration device of PM2.5 mass concentration monitor was estimated. By analyzing the source of the uncertainty of calibration device, the analytical method of the uncertainty was determined. It was proved that when the aerosol concentration were 50μg/m3, 200μg/m3 and 500μg/m3, the expanded uncertainty of the calibration device were 0.90%, 0.90% and 10.02% respectively, and it showed that the major influence factor of the uncertainty of the calibration device was the mass concentration indication error.