China’s air quality monitoring network is completed as over 5,000 monitoring centers have been set up at national, provincial, municipal and county levels, according to China National Environmental Monitoring Center (CNEMC). Since the 12th five-year plan period, China has gradually put in place a technical system that can meet the needs of regular atmospheric environment monitoring. Online monitoring technologies for PM2.5, ozone, VOCs and so on, have also been developed.
According to experts, in order to make sure that the monitoring data are authentic and valid, the data are sent directly to city-level, provincial-level and CNEMC monitoring platforms as soon as they are produced at the state-controlled monitoring stations, so that the data can be obtained simultaneously by monitoring centers at three different levels. Remote quality control system that is able to track changes and give alarm for abnormal situations has been installed in 1,436 state-controlled monitoring centers.
（Source：Ecns.cn）
