May 29, 2017 12:46
Korea suffered 169 days last year when fine dust concentration was worse than the World Health Organization's limit of 25 ㎍ per cubic meter.
According to meteorological information provider Kweather on Sunday, the number of days when fine dust levels surpassed the safe limit have increased from 130 in 2014.
Korean environmental authorities currently put the safe limit much higher at 50㎍ per cubic meter.
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