China; Ministry of environmental protection, environmental monitoring station of the inspection team composed of air quality monitoring in Xining city were examined to ensure that the air quality index in Xining city in December 31st according to the real-time monitoring index released 6.
it is reported that the Ministry of environmental protection inspection team to carry out the monitoring of the first phase of the new standards for air quality in Xining city were examined, in the inspection process, the inspection team must since the implementation of the first phase of the new standards of air quality in Xining, ready to work, basically reached the requirements of environmental protection department.
Xining is the capital city of Qinghai Province, the existing national monitoring network of air quality monitoring site 4, located in the environmental monitoring station of Xining City, Qinghai Province medicine warehouse, Silu hospital (Bayi Road), the fifth Waterworks in Xining. According to the Ministry of environmental protection "on the city environmental air quality assessment methods (Trial)" Notice of the pilot monitoring requirements, Xining city in April 2012 and completed the installation and commissioning work bidding site PM2.5 monitoring equipment for automatic monitoring of 4 national air quality monitoring network, with the launch of SO2 (sulfur dioxide), XO2 (chemical oxygen oxygen, ozone, PM10), CO (carbon monoxide), PM2.5 six monitoring items, and put into trial monitoring. According to the July national air monitoring network construction project (a) main technical specification of equipment and parameter automatic monitoring of city environment air supplement added to meet the national requirements of PM2.5 monitoring equipment, equipment installation and commissioning is expected to be completed in late November, investment monitoring work. By then, Xining 4 national network air monitoring point of all monitoring instruments and monitoring projects will all meet the requirements of the first phase of the new air quality monitoring program implementation requirements.
PM2.5 refers to the particles in the atmosphere of less than or equal to 2.5 microns in diameter, also known as into the lung particles. Although PM2.5 is only a small component of the earth’s atmosphere, it has an important impact on air quality and visibility. Compared with coarse atmospheric particles, PM2.5 particle size, rich in a lot of toxic and harmful substances and long residence time in the atmosphere, conveying distance, and thus the impact on human health and environmental quality of the atmosphere more. (author: Guo Jia)