Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Hye-Ryun Oh"'
Publikováno v:
Journal of Applied Meteorology and Climatology. 58:2523-2530
Air quality depends as much on large-scale tropospheric circulation as on the amount of pollutant emissions. Many studies have found a relationship between air quality and midlatitude synoptic weather systems. A stable low-level troposphere and airfl
Publikováno v:
Journal of Applied Meteorology and Climatology. 57:2363-2373
Cold-season air quality in Seoul, South Korea, has been improved noticeably between 2001 and 2015 with a near-50% decrease in the mean concentration of particulate matter with aerodynamic diameters ≤10 μm (PM10). Like the change in mean concentrat
Autor:
Hye-Ryun Oh, Chang-Hoi Ho, Lim-Seok Chang, Doo-Sun R. Park, Jinwon Kim, Greem Lee, Jinsoo Choi, Min Young Sung, Jae-Bum Lee
Publikováno v:
Aerosol and Air Quality Research. 18:2185-2194
In Seoul, South Korea, particulate matters (PMs) significantly decreased for the period 2005–2015 in concert with the implementation of air pollution reduction policies. This study reveals that PM with a diameter smaller than 2.5 μm (PM2.5) has a
Publikováno v:
Atmospheric Pollution Research. 12:101098
The Government of the Republic of Korea has enforced strict regulations to improve air quality since the early 2000s. The regulations are mainly focused on reducing vehicle emissions in the Seoul metropolitan region by conforming to the European emis
Publikováno v:
Atmospheric Environment. 244:117904
For evaluating the performance of the Korean operational air quality model (Weather Research and Forecasting-Community Multiscale Air Quality), we compared the simulated concentrations of particulate matter with diameters ≤ 10 μm (PM10) against ob
Autor:
Dae-Ryun Choi, Ingyu Park, Ho Chang-Hoi, Sun-Kyong Hur, Jinwon Kim, Hye-Ryun Oh, Hyeon-Ju Gim
Publikováno v:
Atmospheric Environment. 245:118021
The National Institute of Environmental Research, the Ministry of Environment, has been forecasting the concentrations of particulate matter (PM) with a diameter ≤ 2.5 μm (PM2.5) over Seoul, Republic of Korea, in terms of four PM2.5 concentration
Autor:
Hye-Ryun Oh, Sun-Kyong Hur, Chang-Keun Song, Lim-Seok Chang, Jae-Bum Lee, Jinwon Kim, Chang-Hoi Ho
Publikováno v:
Environmental Pollution. 218:1324-1333
As of November 2014, the Korean Ministry of Environment (KME) has been forecasting the concentration of particulate matter with diameters ≤ 10 μm (PM10) classified into four grades: low (PM10 ≤ 30 μg m−3), moderate (30 150 μg m−3). The KME
Autor:
Chang-Hoi Ho, Hye-Ryun Oh, Greem Lee, Jinwon Kim, Seungmin Lee, Lim-Seok Chang, Chang-Keun Song, Jae-Bum Lee
Publikováno v:
Aerosol and Air Quality Research. 16:1118-1130
Aircrafts enable the direct measurement of chemical components in the free troposphere (FT). This study employed airborne measurements to examine the occurrences of high concentrations of SO2 and NOx in the FT over the coastal region west of the Seou
Autor:
Hui-Young Yun, Dae-Ryun Choi, Sun-Kyong Hur, Chang-Hoi Ho, Hye-Ryun Oh, Kwan-Gu Baek, Youn-Seo Koo, Jae-Seol Shim, Jong-Ghap Jhun
Publikováno v:
Atmospheric Environment. 223:117262
A record-breaking episode of highly concentrated particulate matter (PM) with diameters ≤ 2.5 μm (PM2.5) and ≤10 μm (PM10) occurred in the Republic of Korea during the period January 11–15, 2019: the hourly PM2.5 (PM10) in Seoul was 188 μg m
Autor:
Chang-Hoi Ho, Chang Keun Song, Lim Seok Chang, Deliang Chen, Yong-Sang Choi, Hye-Ryun Oh, Seungmin Lee, Jinwon Kim
Publikováno v:
Atmospheric Environment. 109:23-30
Massive air pollutants originating in China and their trans-boundary transports are an international concern in East Asia. Despite its importance, details in the trans-boundary transport of air pollutants over East Asia and its impact on regional air