Interpretation of new PM2.5 cloud monitoring instrument

PM2.5 monitoring reaches a second-level continuous measurement, a vision that may soon be realized in Hebei province. May 11 morning, a new "PM2.5 Cloud monitoring instrument" unveiled "PM2.5 grid monitoring real-time monitoring, early warning technology exchange", Hebei province Environmental Protection Office, provincial Ministry of Letters, Provincial Quality Supervision Bureau, Hebei Environmental Protection Federation and other environmental experts to discuss the new technology of air quality monitoring.

This point is changing in real time, and I can see that this is a relationship with the city's mean value ... This PM2.5 cloud monitor, rectangular, small, looks a bit like a letter box. General manager of Hebei three Sichuan Technology Co., Ltd. Wang Fei cheerfully introduced that this is their company's independent research and development of air quality monitoring products, using infrared light scattering method to detect PM2.5 concentration, so that environmental protection and the Internet of things, cloud computing technology organic combination. The biggest feature is the ability to meet the second-level continuous measurement needs, real-time monitoring of PM2.5, like beta-ray method it uses a 45-minute sampling to make a data, we can output in real time, every 30 seconds or every 10 seconds to make a data, so that real-time reflect the whole city of the air change trend.

In the process of haze formation, the real-time monitoring function of PM2.5 cloud monitoring instrument is more obvious. Haze, accumulated by the fine particles in the atmosphere, in the quiet wind and small wind in the fog days, the accumulation of fine particles of the process will be greatly accelerated. Through the supervised of urban global grid, PM2.5 Cloud Monitor can discover in time the PM2.5 density grows too fast or the concentration level is too high the grid, realize real-time warning, effectively improve the accuracy of environmental monitoring and prevention measures targeted, to make a similar to the trend of cloud chart, which point rise too fast, outside come over how much pollution, my own area caused by how much pollution, can be at a glance on the platform. In this way I can be targeted, I know which companies I should shut down.

Not only that, compared with the current beta-ray absorption method, PM2.5 Cloud Monitor has a higher price-performance ratio, the application is more extensive, public places, roads, parks, workshops and other monitoring environment can be easily laid, now like beta-ray must have a special room, put a lot of equipment. We this directly to the street lamp pole or pole son on a hook, completed the layout, and the use of solar power.

At present, the PM2.5 Cloud Monitor has been in Jiangsu Nanjing, Qinhuangdao and other land layout operation, the effect is obvious. Now, Shijiazhuang also began to do pilot work.

Shijiazhuang City Environmental Monitoring Center Deputy Director Zhanglingzhi said, we're just taking its hour data to compare with the data on our regular points, like its relevance has reached more than 0.93, the result of the analysis is that the data consistency is very good, that is, it should be high, low, this trend changes very consistent.

Wang Fei said that he was confident about the promotion of PM2.5 cloud Monitor. In the future, their company will also develop more more comprehensive air quality monitoring products, PM2.5 Monitor must always do, we now want to choose a county or a city in Hebei province, by our investment, may be hundreds of points, put it up, really to build a demonstration project. As part of our product development, we must incorporate other things, including PM2.5, 10, sulfur dioxide, nitric oxide and ozone, which can be transmitted to the platform by the sensor.