by 
We know that China has a serious air pollution problem, caused largely by CO2 emissions. The government has promised to tackle the issue in the coming years, but some local councils have already started using a rather unconventional method of dispersing the smog: huge mist cannons.
The cannons are based on machines that blast away dust in factories and building sites. Manufactured by China-based company, Hunan Jiujiu Mining Safety Equipment, they were originally intended to reduce the risk of lung and respiratory problems for miners, but back in 2013, they started tweaking the machines for wider use and have been marketing them as pollution solutions to local government departments ever since.
#China
The cannons work by nebulising liquid into tiny particles that are then sprayed into the air. On contact with harmful specks of dust, the liquid particles form water droplets that then fall to the ground like rain. According to the company, it can produce particles as small as 10 microns in size – while that’s not enough to capture all of the fine pollution in the air, it can make a difference.
Interested in picking one up? According to May Shi at Quartz, a cannon that can sit on the back of a truck and function while you drive around is going to set you back about 600,000 yuan (roughly US$92,700). Opt for a stationary one and the price drops to just 80,000 yuan ($12,400).
China
The local authorities are most definitely interested, with officials in the city of Guigang having ordered five machines to control dust and smog in the air. Other cities and authorities in Inner Mongolia have placed orders for the mist cannons too.
science alert