Evaluation method and application of data recognition capability of VOCs online monitoring equipment
ZHANG Tao1,2,3,, WANG Xinming1,,, ZHOU Yan3, PEI Chenglei1,2,4, CHEN Duohong3, OU Yubo3, CHEN Chunyi3 1.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangdong Environmental Monitoring Center, Guangzhou 510308, China 4.Guangzhou Environmental Monitoring Center, Guangzhou 510006, China
Abstract:In order to evaluate the accuracy of the original data of VOCs online monitoring equipments, an evaluation method for data recognition capability of VOCs online monitoring equipments was established. The results showed that there were some differences in the performance of the eight VOCs online monitoring equipments in data recognition capability, and the average relative deviation between original data and manual audit data ranged from ?100% to 56 652%. Compared with high-carbon species, a greater mean relative deviation between the original data and the manual audit data occurred for low-carbon species. According to the application case analysis, the data recognition index (DRI) proposed in this study could quantitatively distinguish the data recognition capability of different VOCs online monitoring equipments. This method not only provided a new assessment index for the evaluation of VOCs online monitoring equipments in the future, but also could make a scientific evaluation for the rapid analysis and application capability of other online monitoring equipments. Key words:volatile organic compounds/ online monitoring/ evaluation method/ data recognition capability/ index.
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1.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangdong Environmental Monitoring Center, Guangzhou 510308, China 4.Guangzhou Environmental Monitoring Center, Guangzhou 510006, China Received Date: 2020-03-04 Accepted Date: 2020-06-24 Available Online: 2021-01-13 Keywords:volatile organic compounds/ online monitoring/ evaluation method/ data recognition capability/ index Abstract:In order to evaluate the accuracy of the original data of VOCs online monitoring equipments, an evaluation method for data recognition capability of VOCs online monitoring equipments was established. The results showed that there were some differences in the performance of the eight VOCs online monitoring equipments in data recognition capability, and the average relative deviation between original data and manual audit data ranged from ?100% to 56 652%. Compared with high-carbon species, a greater mean relative deviation between the original data and the manual audit data occurred for low-carbon species. According to the application case analysis, the data recognition index (DRI) proposed in this study could quantitatively distinguish the data recognition capability of different VOCs online monitoring equipments. This method not only provided a new assessment index for the evaluation of VOCs online monitoring equipments in the future, but also could make a scientific evaluation for the rapid analysis and application capability of other online monitoring equipments.