Off-the-chart smog leaves northeastern China shrouded in haze

Xinhua, China’s state-backed newswire, on Monday called global attention to what may be the worst air pollution reading since China started monitoring the density of toxic particles in 2013.

The thick toxic air shrouded the city of Shenyang for much of the weekend, turning day to smoggy night and severely limiting visibility.

Data released by the Shenyang Environmental Protection Agency on Sunday showed the density of toxic particles — PM2.5 — was more than 1,000 micrograms per cubic meter. (The World Health Organization says a reading of 25, on average, over 24 hours, is safe.)

http://www.startribune.com/off-the-chart-smog-leaves-northeastern-china-shrouded-in-haze/344066052/