Nextbigfuture covered the concept of spraying water from skyscrapers to reduce air pollution in cities in China.
Spraying water from skyscrapers could help to reduce the concentration of PM2.5 pollution - tiny particles in the air which are especially hazardous to health - efficiently to a safer level of 35 micrograms per cubic metre, and in as quick as 30 minutes. Air pollution is a big problem in China and this is approach to pollution mitigation is being developed there.
In addition, the process is natural, technologically feasible, efficient and low cost. All the necessary technologies and materials required to make it work are already available, Yu says, from high buildings, towers and aircraft, to weather modification technology and automatic sprinkler heads.
Tests will be performed at Zhejiang University campus first and then Hangzhou city if everything goes well. If we are successful, our work can be followed by the other cities in China and around the world."
Air pollution in China has progressively worsened over the past 30 years, particularly in its megacities, due to rapid economic growth and expansion of industrial activity. According to a Greenpeace report released last week, in 2013, 92 per cent of Chinese cities failed to reach the national standard of a PM2.5 density of no greater than 35 micrograms per cubic metre. Thirty-two cities were double the standard, while the top 10 cities were three times the standard.
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Spraying water from skyscrapers could help to reduce the concentration of PM2.5 pollution - tiny particles in the air which are especially hazardous to health - efficiently to a safer level of 35 micrograms per cubic metre, and in as quick as 30 minutes. Air pollution is a big problem in China and this is approach to pollution mitigation is being developed there.
In addition, the process is natural, technologically feasible, efficient and low cost. All the necessary technologies and materials required to make it work are already available, Yu says, from high buildings, towers and aircraft, to weather modification technology and automatic sprinkler heads.
Tests will be performed at Zhejiang University campus first and then Hangzhou city if everything goes well. If we are successful, our work can be followed by the other cities in China and around the world."
Air pollution in China has progressively worsened over the past 30 years, particularly in its megacities, due to rapid economic growth and expansion of industrial activity. According to a Greenpeace report released last week, in 2013, 92 per cent of Chinese cities failed to reach the national standard of a PM2.5 density of no greater than 35 micrograms per cubic metre. Thirty-two cities were double the standard, while the top 10 cities were three times the standard.
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