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Environmental work is facing new challenges, to strengthen the monitoring instrument research and development as the key

發表時間:2016-10-28 14:47:59

"Due to shandong with strict environmental standards, constantly monitoring equipment at the grass-roots level of precision vacuum; shandong province introduced a stationary sources gravimetric method for the determination of ultra low emission particulate matter, namely the manual measurement, we face problems such as monitoring personnel quality and understaffed." Recently, the reporter came to shandong weifang environmental monitoring center master Wang Binzhi said, proposes new challenge to ultra-low emissions to the environmental protection work.

 

Deputy director of shandong province department of environmental protection of Yao Yunhui said, automatic on-line monitoring instrument in the face of 5, 10, 30 mg/cubic meters of ultra-low concentration, precision is not enough, the error is too big.

 

Monitoring instrument error is large, is not only caused by the disputes between administration and enterprise. Chinese academy of engineering, Chinese academy of sciences, anhui institute of optical precision machinery, director of the liu had said in the lecture, volatile organic pollutants (VOCs) is the key of the "much starker choices-and graver consequences-in" to reduce emissions, but its emission source small and scattered, involved in many industries. "Sparse" because our country environmental monitoring point distribution, precision is not enough, the actual emissions is related department to control emissions data to double, or even several times, and then affects the national emphasis on pollution control, as well as the policy, introduced, etc.

 

"Air pollution and the weather forecast early warning model of reckoning, lack of large amounts of data and the accuracy problems, lead to predict warning 'failure'." Says liu, whether it is a heavy fog in winter in Beijing last year for failing to start the red alert, or a flood in hebei province recently and alert at the same time, is the same reason.

 

Environmental monitoring instrument research and production in China is relatively backward. Says liu, such as nondispersive infrared (NDIR) gas sensor can realize real-time measuring gases such as sulfur dioxide, nitrogen oxides, but now an infrared detector production enterprises in China. Countries have a series of research on optical detection technology and equipment layout, but as a result of long development period, large investment, enterprise and no relevant research projects. Developed countries of pollution sources of ultra-low emission monitoring instrument development layout early, start early, if not speed up the pace in China, the gap will continue to be widening. "You are in progress, others also in progress."

 

Says liu, the monitoring points, the environmental protection department current layout is 12 -- 15 meters high to the on-line monitoring, lack of air monitoring, which greatly affected the accuracy of the environmental data. To solve the above problems, in addition to the increase of nondispersive infrared gas sensor, the harmful gas analyzer, laser Raman lidar detection technology of new technologies such as study, also should establish multi-dimensional monitoring platform. Traditional monitoring layout from "point - line - face", but the future monitoring should be multi-platform stereoscopic monitoring atmospheric pollution of the environment, including near the ground monitoring stations, the stratosphere plane observation, space satellite launch atmospheric composition detection instrument, the distance from point to measure to adopt resolution of remote sensing technology, real-time monitoring of atmospheric physical and chemical characteristics of the arbitrary path ".

 



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Address:No. 14, Qianqian Road, Sha Industrial Park, Xintang Town, Zengcheng District, Guangzhou City
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