Air Quality Monitoring
China announced on August 26 the launch of a plan to better monitor and control smog in key regions through satellite remote sensing.
The Ministry of Ecology and Environment said a grid network to monitor the density of PM 2.5 will gradually cover Beijing, Tianjin and 26 cities in nearby provinces, 11 cities on the Fenhe and Weihe river plains, as well as 41 cities on the Yangtze River Delta.
With technologies including remote sensing, authorities in the Beijing headquarters can discover environmental problems in faraway regions quickly and direct immediate action, according to Zhao Qunying, an official in charge of environmental supervision at the ministry.
“This can improve the efficiency of regulation and address the problem of inadequate enforcement personnel for the broad regions under scrutiny,” Zhao said.
Regions covered by the network will be divided into grid units of 9 square km. The units with relatively high density of PM 2.5 are listed as key areas to watch.
By October, Beijing, Tianjin and nearby cities will be included in the network. Cities on the Fenhe and Weihe river plains will be covered starting in October, while those in the Yangtze River Delta will be covered in February 2019, according to Zhao.