December 15, 2017 13:16
The weeklong cold snap has had the positive effect of keeping toxic haze from China away from Korea. The icy chill cleared the air as westerly winds gave way to cold air currents from the north.
The concentration of fine dust (PM10) was 28.43 ㎍/㎥ or "moderately good" in Seoul in early December, according to the National Institute of Environmental Research.
No fine dust alert has been issued so far this month, compared to 25 alerts in early December last year.
"The cold continental anticyclone from the north is blocking the pollution from China from blowing into the country," the Korea Meteorological Administration said.
Last year, the low atmospheric pressure brought large amounts of fine dust to Korea as it passed Chinese industrial complexes and densely-populated areas including Beijing and the coast of Bohai Bay.
Meanwhile, Seoul briefly saw above-zero temperature on Friday, when the mercury dipped to -6 degrees in the morning but soared to 3 degrees in the daytime.
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