The new "Exploration" laser radar was successfully developed

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[ Instrument Network Instrument Development ] Haze is a general expression of the content of various suspended particulates in the atmosphere, and it is an air pollution state. Sulfur dioxide, nitrogen oxides and respirable particulate matter are the main components of smog. The first two are gaseous pollutants. Inhalable particulate matter is the main culprit for aggravating smog weather pollution. When combined with fog, it will make the sky Become gray.

In 2013, the term “haze” became the hot word of the year. By 2014, the National Disaster Reduction Office and the Ministry of Civil Affairs first reported the haze weather into the 2013 natural disaster situation. To this day, smog still plagues most of our cities.
Haze can make the environment worse, and it can have many adverse effects on people. In the haze, people's respiratory system will be affected first, especially in the lungs. The composition of smog is very complicated. Various inhalable particles enter the respiratory tract, causing respiratory diseases such as bronchitis and asthma. Harmful in smog. There are many particles, and long-term exposure will increase the risk of cancer; smog will not only damage organs, but also affect the nervous system invisibly. In addition, the most intuitive effect of smog on people is that it can make visibility less, hinder people's travel, and even cause car accidents. Therefore, in many areas of China, smog weather is used as a warning and forecast for severe weather.
Improve people's life happiness index, win the blue sky to defend the war, and control the haze is the top priority.
But to really cure it, we must first find out where the haze comes from, how it will drift and dissipate these problems. To solve the above problems, you need to use laser radar. Lidar is an advanced technical means to detect haze. Recently, the new atmospheric fine particle and ozone space-time detection laser radar system developed by the Hefei Institute of Material Science of the Chinese Academy of Sciences has passed the comprehensive acceptance inspection organized by the Ministry of Science and Technology. Atmospheric fine particles and ozone space-time detection lidar can detect and analyze the high distribution and concentration distribution of PM2.5 and ozone in real time from the ground to the height of 10 kilometers.
It is understood that before this, China did not master this kind of "the core technology of detecting laser radar", and it can only import from foreign machines. This means that the acceptance of the atmospheric fine particle and ozone space-time detection laser radar research and development project has not only improved China's "exploration" level, but also broke the monopoly of developed countries on the core technology of laser radar. The whole machine is localized and is in the forefront of the international application.
At present, atmospheric fine particles and ozone space-time detection laser radar have been deployed in large-scale distribution in densely populated areas such as Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta, and Sichuan and Chongqing to monitor air quality in real time. In the next smog treatment work, this new type of laser radar will contribute to the analysis of the causes of pollution and the precise formulation of treatment strategies.
(Original title: New type of "exploration" laser radar developed successfully China's smog detection capability further)

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