In order to promote and strengthen the comprehensive utilization and risk control of fly ash in northern China

the production and utilization of fly ash in coal-fired power plants in Shanxi

Inner Mongolia

Shaanxi

Gansu and Ningxia from1995 to 2019 are analyzed

and the situation of fly ash storage yard in the five provinces is studied by satellite remote sensing.The results show that the amount of fly ash produced by power plants in the five northern provinces accounts for more than20% of the country. The utilization way of fly ash in the five provinces is mainly building materials and the utilization rate is low. There are a large number of fly ash piles in five provinces

which produce great potential ecological and environmental safety hazards. It is suggested to formulate incentive policies and strengthen technology research and development to promote the comprehensive utilization level of fly ash. In order to reduce the environmental risk of fly ash storage yard

it is also necessary to establish fly ash pollution prevention and control system and environmental risk prevention and control system as soon as possible.