期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 304, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2021.114158
关键词
Particulate matter; Low-cost sensors; Environmental monitoring
资金
- LIFE Program of the European Commission [LIFE17 IPE/HU/000 017]
The study on the performance of a low-cost sensor (Plantower PMS7003) showed good unit-to-unit consistency, but individual calibration was necessary. Results from a 15-month field test indicated promising quantitative and indicative performance, with an overall indicative accuracy of approximately 73-75%. It is recommended to clean the sensors after 6-8 months of operation.
Ambient particulate matter (PM) pollution is a significant problem in many urban and rural regions and has severe human health implications. Real-time, spatially dense monitoring using a network of low-cost sensors (LCS) was previously proposed as a way to alleviate the problem of PM. In this study, the performance of an LCS (Plantower PMS7003), a candidate for use in such a network, was investigated. The sensor was calibrated in a controlled climate chamber against a standard reference aerosol monitor. Reproducibility and calibration were evaluated in laboratory tests. Long-term, in-field performance was studied via deploying an LCS assembly at an environmental monitoring station. Results indicated excellent unit-to-unit consistency; however, each sensor needed to be calibrated individually as their characteristics varied slightly. Based on the results of a 15-month field test, quantitative and indicative LCS performance appeared promising: overall indicative accuracy was approximately 73-75% with comparable precision and recall. It is advised that the LCS are cleaned after 6-8 months of operation. Overall, the LCS appeared suitable for low-cost monitoring.
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