Yao Yunhui, deputy director of the Environmental Protection Department of Shandong Province, said that when the automatic online monitoring equipment is faced with such ultra-low concentrations as 5, 10, and 30 mg/m3, the accuracy is not enough, and the error is too great.
The large errors in monitoring instruments have caused not only disputes between management departments and enterprises. Liu Wenqing, academician of the Chinese Academy of Engineering and head of the Anhui Institute of Optics and Fine Mechanics at the Chinese Academy of Sciences, said in his lecture that volatile organic pollutants (VOCs) are the focus of the “13th Five-Year Plan†emission reduction, but their emission sources are small and scattered, involving many industries. . Due to the "sparseness" of China's environmental monitoring sites, the accuracy is not enough. The actual emissions are double or even several times that of the relevant departments to master the emissions data, which in turn affects the state's emphasis on pollution control, and policy formulation and introduction. Wait.
“Air pollution and forecasting and warning of weather are calculated using models. Lack of data and accuracy problems lead to prediction and early warning 'failures'.†Liu Wenqing said that whether or not a heavy smog in Beijing failed to activate the red alarm in time last winter or recently A flood and an alarm in Hebei came at the same time.
China's environmental monitoring equipment research and production are also lagging behind. Liu Wenqing said that if non-dispersive infrared (NDIR) gas sensors can achieve real-time measurement of sulfur dioxide, nitrogen oxides and other gases, but China is now an infrared detector manufacturing companies are not. The state has a series of layouts for optical detection technology and instrument research. However, due to the long research and development cycle and large investment, companies do not have relevant research plans. The development of ultra-low emission pollution monitoring instruments for pollution sources in developed countries is early and started early. If China does not accelerate its pace, the gap will continue to widen. "You are making progress, others are making progress."
Liu Wenqing said that for the monitoring sites, the environmental protection department is currently deploying on-line monitoring of 12-15 meters of high ground, and lack of monitoring of high altitude, which greatly affects the accuracy of environmental data. In order to solve these problems, in addition to adding new technologies such as non-dispersive infrared gas sensors, laser harmful gas analyzers, and Raman laser radar detection technologies, multidimensional monitoring platforms should be established. The traditional monitoring layout is from "point-line-plane", but the future monitoring should be a multi-platform monitoring of atmospheric pollution, including near-ground monitoring stations, stratospheric aircraft observations, and satellite spaceborne atmospheric component detection instruments. "From point-based measurement to telemetry using distance resolution, real-time monitoring of physical and chemical properties on any path in the atmosphere."
The large errors in monitoring instruments have caused not only disputes between management departments and enterprises. Liu Wenqing, academician of the Chinese Academy of Engineering and head of the Anhui Institute of Optics and Fine Mechanics at the Chinese Academy of Sciences, said in his lecture that volatile organic pollutants (VOCs) are the focus of the “13th Five-Year Plan†emission reduction, but their emission sources are small and scattered, involving many industries. . Due to the "sparseness" of China's environmental monitoring sites, the accuracy is not enough. The actual emissions are double or even several times that of the relevant departments to master the emissions data, which in turn affects the state's emphasis on pollution control, and policy formulation and introduction. Wait.
“Air pollution and forecasting and warning of weather are calculated using models. Lack of data and accuracy problems lead to prediction and early warning 'failures'.†Liu Wenqing said that whether or not a heavy smog in Beijing failed to activate the red alarm in time last winter or recently A flood and an alarm in Hebei came at the same time.
China's environmental monitoring equipment research and production are also lagging behind. Liu Wenqing said that if non-dispersive infrared (NDIR) gas sensors can achieve real-time measurement of sulfur dioxide, nitrogen oxides and other gases, but China is now an infrared detector manufacturing companies are not. The state has a series of layouts for optical detection technology and instrument research. However, due to the long research and development cycle and large investment, companies do not have relevant research plans. The development of ultra-low emission pollution monitoring instruments for pollution sources in developed countries is early and started early. If China does not accelerate its pace, the gap will continue to widen. "You are making progress, others are making progress."
Liu Wenqing said that for the monitoring sites, the environmental protection department is currently deploying on-line monitoring of 12-15 meters of high ground, and lack of monitoring of high altitude, which greatly affects the accuracy of environmental data. In order to solve these problems, in addition to adding new technologies such as non-dispersive infrared gas sensors, laser harmful gas analyzers, and Raman laser radar detection technologies, multidimensional monitoring platforms should be established. The traditional monitoring layout is from "point-line-plane", but the future monitoring should be a multi-platform monitoring of atmospheric pollution, including near-ground monitoring stations, stratospheric aircraft observations, and satellite spaceborne atmospheric component detection instruments. "From point-based measurement to telemetry using distance resolution, real-time monitoring of physical and chemical properties on any path in the atmosphere."
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