2016 оны 3 сарын 1
Ulaanbaatar is among the 10 most polluted cities in the world. Air pollution levels in the ger have reached dangerous levels: 2011 data showed that fine particulate matter, or PM 2.5, which increases the risk of respiratory infections among children, is usually 6–7 times higher than World Health Organization standards allow. The measurement can peak at up to 25 times the allowance, in December.