China: Smog Emergency Shuts City of 11 Million People
October 20th, 2013Via: Reuters:
Choking smog all but shut down one of northeastern China’s largest cities on Monday, forcing schools to suspended classes, snarling traffic and closing the airport, in the country’s first major air pollution crisis of the winter.
An index measuring PM2.5, or particulate matter with a diameter of 2.5 micrometers (PM2.5), reached a reading of 1,000 in some parts of Harbin, the gritty capital of northeastern Heilongjiang province and home to some 11 million people.
A level above 300 is considered hazardous, while the World Health Organisation recommends a daily level of no more than 20.
The smog not only forced all primary and middle schools to suspend classes, but shut the airport and some public bus routes, the official Xinhua news agency reported, blaming the emergency on the first day of the heating being turned on in the city for winter. Visibility was reportedly reduced to 10 meters.
Related: Beijing Pollution So Bad That International Schools Build Filtered Air Domes for Children
The vacuum that cleans the SKY: Scientists develop system that ‘sucks up’ smog as polluted air shuts down an entire city
http://www.dailymail.co.uk/sciencetech/article-2470206/Scientists-develop-vacuum-suck-Beijing-smog.html