Friday, March 7, 2014

China to use drones to clear its smog-filled skies

A girl puts a mask on her dog in Shijiazhuang, capital of north China's Hebei Province. Many cities were on alert for air pollution on last week after the fog and smog choked northern and central ChinaChina to use drones to clear its smog-filled skies by spraying the pollution with chemicals which make the particles fall to the ground
  • Device is designed to tackle the worsening pollution crisis
  • Scientists have likened the smog in Beijing to a nuclear winter
  • Premier Li Keqiang has declared a 'war on pollution'
By Leon Watson
|

China will test a new drone to clear the toxic smog that is filling its skies with pollution, it emerged today.

The device is designed to tackle the worsening pollution crisis that has seen scientists liken the smog in Beijing to the effects of a nuclear winter.

Trials for the unmanned aerial vehicle are expected to take place at airports and ports later this month, Ma Yongsheng, an aviation official who is a delegate to the National People's Congress, said.
Pollution: Retirees play Taichi during their morning exercise on a hazy day in Fuyang city, in central China's Anhui province
Pollution: Retirees play Taichi during their morning exercise on a hazy day in Fuyang city, in central China's Anhui province
The haze at Beijing's Tiananmen Square. China is getting increasingly concerned about the levels of pollution in its big cities
The haze at Beijing's Tiananmen Square. China is getting increasingly concerned about the levels of pollution in its big cities

The project is being led by the China Meteorological Administration and aviation experts, state news agency Xinhua reported.

Ma is the CEO of state-owned Aviation Industry Corporation of China, which has developed the nation's first parafoil UAV, which can carry up to 700kg of smog-clearing chemicals that can be used within a five-kilometre radius.

For several years, China has used aeroplanes and fixed-wing drones to spray chemicals in the air which freeze pollutants, allowing the particles to fall to the ground.

The soft-wing UAV can carry three times more weight than fixed-wing drones and is 90 per cent less expensive to operate.

The purchase and maintenance cost of the new drone is 20 to 30 per cent cheaper than other types, the South China Morning Post reported.

Ma said the drone was easy to control and had no complicated landing requirements, making it suitable for airport and port conditions.

He said the drone could also be used for emergency rescue, disaster relief, aerial photography and surveying activities. It can also be used in agriculture, as it can spread seeds over a designated area.
Authorities in Beijing have introduced anti-pollution policies and often pledged to clean up the environment but the problem has not eased
Authorities in Beijing have introduced anti-pollution policies and often pledged to clean up the environment but the problem has not eased
A girl puts a mask on her dog in Shijiazhuang, capital of north China's Hebei Province. Many cities were on alert for air pollution on last week after the fog and smog choked northern and central China
A girl puts a mask on her dog in Shijiazhuang, capital of north China's Hebei Province. Many cities were on alert for air pollution on last week after the fog and smog choked northern and central China
Tourists wearing masks in Temple of Heaven in haze-covered Beijing, China. Air pollution in China was declared a '€œcrisis'€ by the World Health Organisation
Tourists wearing masks in Temple of Heaven in haze-covered Beijing, China. Air pollution in China was declared a '€œcrisis'€ by the World Health Organisation
City residents are growing angry and alarmed at the worrying levels of pollution being pumped into China's skies
City residents are growing angry and alarmed at the worrying levels of pollution being pumped into China's skies

Premier Li Keqiang has declared a 'war on pollution' at the start of the annual meeting of the NPC and Chinese People's Political Consultative Conference in Beijing.

Li described smog as nature's warning against 'inefficient and blind development', and said the government would focus on reducing PM2.5 and PM10 – tiny pollutants which can be toxic when inhaled by people.

The premier said the government would hit pollution at the source by targeting industrial factories and energy producers.
A man wears a mask at Tiananmen Square in Beijing last week. Air pollution shrouded parts of north-east China leaving residents choking on levels of hazardous smog
A man wears a mask at Tiananmen Square in Beijing last week. Air pollution shrouded parts of north-east China leaving residents choking on levels of hazardous smog
The polluted city skyline of Shanghai where aircraft have been grounded, roads closed and tourists numbers hit
The polluted city skyline of Shanghai where aircraft have been grounded, roads closed and tourists numbers hit

Pollution was so severe in Beijing last week that aircraft were grounded, roads closed and tourists numbers hit, while the direct danger posed to human health was underlined by the World Health Organisation, whose readings in Beijing had alarming results.

It was reported that the level of PM 2.5 particles, a key measure of pollution because they are small enough to be assimilated into the blood stream, reached 505 micrograms per cubic metre, far higher than the maximum level it considers to be safe, which is 25.

Authorities have introduced anti-pollution policies and often pledged to clean up the environment but the problem has not eased.
Beijing had been draped in stinking smog for more than a week and in an effort to cut pollution, 147 industrial companies in the capital had cut or suspended production as of Tuesday, according to Xinhua.

City residents are growing angry and alarmed.

On Wednesday, air pollution eased from last week’s worrying levels. The U.S. embassy – which has set up its own air quality monitoring system and regularly posts readings on a Twitter feed – said Beijing had a 'moderate' PM2.5 reading of 82 micrograms per cubic metre at 9am on Wednesday.

The Beijing Municipal Environmental Monitoring Centre posted on its Sina Weibo account that the capital recorded a 'good' PM2.5 reading of 10 to 31 micrograms per cubic metre at 7am.

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