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| The photo at right shows how serious the air pollution covering the Korean Peninsula is. The left photo was taken on a fine day in Seoul and the right on Wednesday. Ultrafine dust concentrations surged to "very bad" levels in the Seoul metropolitan area Wednesday, due largely to a steady flow of Chinese smog into the stagnant air over the peninsula. Courtesy of Kim Joon-hee |
The Seoul metropolitan area was shrouded by heavy fine dust concentrations for the second straight day on Wednesday, forcing local governments to issue a fine dust advisory and take emergency emission reduction measures.
These included a mandatory alternate no-driving system for public vehicles and a road ban on old diesel cars.
A constant influx of Chinese smog into the stagnant local air has led to a spike in ultrafine dust figures to bad levels in almost all of South Korea, excluding Jeju Island, since the weekend, according to the Air Quality Forecasting Center affiliated with the Ministry of Environment.
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| The National Assembly is shrouded in smog, Tuesday. Korea Times photo by Hong In-gi |
The fine dust particles from China came here on warm westerly winds that followed days of a cold spell caused by Siberian high pressure.
But the Korea Meteorological Administration said thick fine dust concentrations will disappear beginning Wednesday night, when cold wind from the northwest will stream into the peninsula. It also forecast temperatures will fall by more than 10 degrees Celsius nationwide on Thursday due to cold northwesterly winds.
According to the air forecasting center, PM 2.5, or fine dust particles smaller than 2.5 micrometers in diameter, jumped to 118 micrograms per cubic meter in Seoul, 106 micrograms in Gyeonggi Province surrounding the capital and 90 micrograms in Incheon as of 10 a.m. Wednesday. The PM 2.5 reading rose to 85 micrograms in the southeastern city of Daegu.
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Weather authorities categorize concentrations of PM 2.5 particles between 0 and 15 micrograms per cubic meter as "good," between 16 and 35 as "normal," between 36 and 75 as "bad" and more than 76 as "very bad."
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| Seoul's Mapo area on Tuesday. |
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| Police wear masks in central Seoul, Tuesday. Korea Times photo by Ryu Ho-jin |
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| A person jogs on a smoggy Tuesday morning in Seoul. Yonhap |
PM 10, or fine dust particles smaller than 10 micrometers in diameter, also soared to 170 micrograms per cubic meter in Seoul, 155 in Gyeonggi and 144 in Incheon. PM 10 levels between 81 micrograms and 150 are classified as bad.
An ultrafine dust advisory was issued in Gyeonggi at 10 a.m., as the province's PM 2.5 figure remained above 75 micrograms per cubic meter for more than two hours.
The Seoul Metropolitan Government also issued a fine dust advisory at 11 a.m., as the city's PM 10 reading remained above 150 micrograms for more than two hours. An ultrafine dust advisory issued in Seoul on Tuesday afternoon remains in effect.
Government officials asked people with respiratory or cardiovascular problems, children and other vulnerable people to stay indoors, saying fine dust particles can cause various ailments and undermine the body's immune system. They also asked that other people wear masks when going outdoors or engaging in outdoor activities.
Faced with rising fine dust pollution, local governments in the capital area and the central province of North Chungcheong enforced their emergency emission reduction measures for the second consecutive day. Authorities in Busan, Daegu and other central and southern provinces implemented their first emission reduction steps this winter.
Under the emergency measures, the use of grade 5 emission vehicles is banned from 6 a.m. to 9 p.m.
The environment ministry has already classified 2.69 million vehicles, mostly diesel cars, out of 23 million vehicles registered in the nation as grade 5 emission vehicles.
An alternate no-driving day system was also implemented in affected areas for vehicles owned by public institutions and civil servants. On Wednesday, only public vehicles with odd-numbered license plates were allowed on the roads. (Yonhap)
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