freezing air can stop 99% of pollutants

London, Nov 11 (IANS) Freezing pollutants can prevent deadly outdoor air pollution thought to cause more than three million premature deaths worldwide every year from seeping indoors by 99 percent, scientists have discovery’s research, by a team of scientists from the Nottingham Trent University in the UK and the Chinese Academy of Sciences, involved studying the effectiveness of cryogenics for indoor air purification, by removing the gaseous pollutants and tiny particulates caused by haze.

The team found that as they circulated haze-polluted air through a cryogenic condenser, the finer particles stuck together in the condenser tube before dropping out by gravity, and emerging as clean air. Their method was able to remove 99 percent of particulates and 98 percent of nitrogen oxide pollutants."Hazardous outdoor air pollution has severely affected indoor air quality, threatening the health of billions of people," said Professor Robert Mortimer, Dean of the School of Animal, Rural and Environmental Sciences at Nottingham.