SEOUL, Jan. 16 (Korea Bizwire) — The level of ultrafine dust was bad or worse only on 17 days last year, the lowest on record, thanks to lower dust levels in China, the environment ministry said Monday. South Korea categorizes concentrations of ultrafine dust — particles smaller than 2.5 micrometers in diameter, also known as [...]
SEOUL, Jan. 3 (Korea Bizwire) — Seoul saw a record-low ultrafine dust density last year mainly on the back of continued efforts to tackle worsening air pollution problems, and favorable weather conditions, the city government said Tuesday. The average density of ultrafine dust particles in the capital city was tallied at 18 micrograms per cubic [...]
SEOUL, Dec. 27 (Korea Bizwire) — South Korea aims to cut the country’s annual average level of ultrafine dust particles by 30 percent by 2032, the environment ministry said Tuesday. Under the latest countermeasure to tackle the nation’s worsening air pollution problem, the government aims to reduce the annual average density of ultrafine dust particles [...]
SEOUL, July 22 (Korea Bizwire) — A recent study showed that liquid-based e-cigarettes emit more ultrafine dust than regular cigarettes. The Korea Disease Control and Prevention Agency photographed smoke and aerosols emitted from cigarettes to analyze their chemical composition, for the first time in the country, between September of last year and May. The results [...]
SEOUL, Jan. 3 (Korea Bizwire) — Seoul’s ultrafine dust levels reached an all-time low last year, the metropolitan government said Sunday. The city reported that last year‘s ultrafine dust (PM 2.5 — particles smaller than 2.5 micrometers in diameter) levels averaged 19.8 ㎍/㎥, which was 23 percent lower than in 2008 (26 ㎍/㎥) when the [...]
SEOUL, Oct. 7 (Korea Bizwire) — Last month’s ultrafine dust density was the lowest since record keeping began in 2015, a government agency said Thursday, citing reduced dust emissions and favorable weather conditions. The average PM 2.5 reading across the country was 8 micrograms per cubic meter in September, the state-run National Institute of Environmental [...]
SEOUL, April 7 (Korea Bizwire) — The National Institute of Environmental Research said Tuesday that it had recently developed a Solar Occultation Flux (SOF) method that uses sunlight to measure the ultrafine dust-causing materials such as nitrogen oxide that are fugitively emitted not only through chimneys but also through a variety of production processes. Fugitive [...]
SEOUL, Feb. 7 (Korea Bizwire) — Last month’s ultrafine dust density was the lowest for January since record keeping began in 2015, the environment ministry said Sunday. The average PM 2.5 reading across the country was 20 micrograms per cubic meter, down from 26 micrograms per cubic meter in January 2020, the ministry said, referring [...]
DAEJEON, Feb. 4 (Korea Bizwire) — Higher concentrations of ultrafine dust levels affect not only humans, but also bees, obstructing their efforts to find flowers. The National Institute of Forest Science, in tandem with a research team from Seoul National University, conducted a study on bees and their time of flight before and after the [...]
SEOUL, Jan. 8 (Korea Bizwire) — Last month saw a record-low ultrafine dust density for December in South Korea, the government said Friday, citing outcomes from its seasonal management system for air pollution. The Ministry of Environment said last month’s national average density of ultrafine dust particles was 24 micrograms per cubic meter, the lowest [...]