Domestic PM2.5 Instrument Will Recapture the Domestic Market

How to monitor PM2.5

From the end of last year to the beginning of this year, haze weather continued to occur in the central and eastern regions of North China, Huanghuai, Jianghuai, and Jiangnan, and the PM2.5 concentration in many areas continued to be extreme and suffered severe air pollution. In the face of "having a long-lasting" haze, the Ministry of Environmental Protection requires strict inspections in all parts of China, focusing on the prevention and control of fine particles, and strictly controlling air pollution.

In recent days, a large wave of air pollution caused by straw burning has swept across major agricultural production provinces, causing serious harm and impact to the people's health and travel. The PM2.5 monitor in Anhui Province has even appeared close to the explosion. Numerical value. Then we can not distinguish the PM2.5, the relevant departments of the monitoring staff is how to get valid data? Taking a monitoring point in an area as an example, let everyone understand the detection process.

Several sampling tubes for collecting air samples are erected on the roof of the EPA monitoring station in a certain area of ​​China. The collection tube is connected to the monitoring equipment of the monitoring station. After the air enters the pipeline, particles in the air will be “screened”. The particles settle out and particles smaller than or equal to 2.5 microns in diameter will enter the instrument. This is the PM2.5 that has recently attracted attention.

The PM2.5 monitoring principle is similar to that of PM10, which is an inhalable particulate matter. It is analyzed and monitored through a sample on a filter paper. After a period of operation, the white filter paper in the monitoring instrument is closely packed with coin-sized black dots. PM2.5 and other information will be printed on the tape in the form of black spots. The black spots on the tape are formed once per hour and finally converted into data through automatic analysis. This data is the concentration of PM2.5 in the air during a specific period of time.

PM2.5 Promotes Market Expansion of Environmental Monitoring Instruments

In recent years, the increase in the number of vicious environmental pollution incidents has driven the rapid development of the environmental monitoring industry. However, the long-term occupation of high-end markets represented by PM2.5 monitoring by foreign-funded enterprises has also led to many reflections.

It can be seen that since the introduction of more and more PM2.5 into the public in 2011, the process of environmental monitoring in China has been greatly promoted, and monitoring of PM2.5 has been carried out throughout the country in the past year. In 2012, Vice Minister of Environmental Protection Wu Xiaoqing once stated that during the “Twelfth Five-Year Plan” period, nearly 1,500 PM2.5 monitoring sites will be built in China, and the initial investment will exceed RMB 2 billion. At the same time, the service life of PM2.5 testing instruments will also be used. For about 3 years, follow-up will continue to add new demand.

Although PM2.5 monitoring has made great progress, the current monitoring of PM2.5 data is mainly in some first and second-tier cities. With the acceleration of urbanization in China, energy consumption and motor vehicle ownership in third- and fourth-tier cities will both increase. With the rapid growth, large amounts of sulfur dioxide, nitrogen oxides, and volatile organic compounds released cause the secondary pollution of fine particles, ozone, and acid rain to increase. The trend of environmental monitoring covering third- and fourth-tier cities will advance along with the urbanization process. .

At present, China has built an environmental quality monitoring system that covers inland, ocean, and space trinity, and has monitored a range of environmental issues including the air, water, soil, radiation, noise, ocean, and regional ecological environment. The increase in awareness has also driven the rise of the environmental monitoring instrument industry.

PM2.5 equipment imported more than five years domestic instruments or catch up

The PM2.5, which is less than 1/20 of the diameter of the hair, not only covers 1.43 million square kilometers of land in China, but also stimulates several billion yuan of PM2.5 monitoring equipment, ten billion yuan of environmental monitoring equipment, and even a trillion-level environmental governance. Input. However, there is a reality that has to be placed in front of instrument manufacturers. Taking Guangdong as an example, among the PM2.5 monitoring instruments put into use in Guangdong Province, American brands accounted for more than 95%.

At present, there are 120 state-controlled (provincial-controlled) air monitoring stations in Guangdong. According to the requirements of the country, one station must be equipped with one set of PM2.5 monitoring equipment, and three sites should be set aside. By the end of 2012, 62 points have been installed. In addition to the national air monitoring points, some cities will set additional PM2.5 monitoring points according to their own needs, such as Guangzhou, Shenzhen, Dongguan and Foshan.

Wu Xiaoqing, deputy director of the Ministry of Environmental Protection, once said that according to the “Twelfth Five-Year Plan” for prevention and control of atmospheric pollution in key regions, nearly 1,500 PM2.5 monitoring sites will be built in China, and the initial investment will exceed RMB 2 billion. Li Yuanbin’s projections are justified. In addition, the operating costs and maintenance costs of PM2.5 monitoring points need to be considered. Li Yuanbin has roughly estimated that these two parts account for 30% to 40% of the total cost of the PM2.5 monitoring point configuration.

In fact, the rise of China's PM2.5 monitoring instrument market took only two years. However, because the market has come too fast and suddenly, domestic equipment manufacturers have lost the chain in technology and talent. Li Yuanbin, deputy secretary-general of the Guangdong Provincial Environmental Protection Industry Association, said: "China's domestic PM2.5 equipment is expected to regain its initiative in the domestic market within three to five years."