Robust Evidence of 14C, 13C, and 15N Analyses Indicating Fossil Fuel Sources for Total Carbon and Ammonium in Fine Aerosols in Seoul Megacity

S Lim, J Hwang, M Lee, CI Czimczik, X Xu… - … science & technology, 2022 - ACS Publications
Carbon-and nitrogen-containing aerosols are ubiquitous in urban atmospheres and play
important roles in air quality and climate change. We determined the 14C fraction modern (f …

Fossil-driven secondary inorganic PM2. 5 enhancement in the North China Plain: Evidence from carbon and nitrogen isotopes

S Lim, X Yang, M Lee, G Li, Y Gao, X Shang… - Environmental …, 2020 - Elsevier
Measuring isotopic ratios in aerosol particles is a powerful tool for identifying major sources,
particularly in separating fossil from non-fossil sources and investigating aerosol formation …

Oxidation pathways and emission sources of atmospheric particulate nitrate in Seoul: based on δ15N and Δ17O measurements

S Lim, M Lee, J Savarino, P Laj - Atmospheric Chemistry and …, 2022 - acp.copernicus.org
PM 2.5 haze pollution driven by secondary inorganic NO 3-has been a great concern in East
Asia. It is, therefore, imperative to identify its sources and oxidation processes, for which …

[HTML][HTML] Seasonal characteristics of PM1 in Seoul, Korea, measured using HR-ToF-aerosol mass spectrometer in 2018

IH Song, JS Park, SM Park, DG Kim, YW Kim… - Atmospheric …, 2021 - Elsevier
In Korea, the characteristics of aerosols vary according to the four distinct seasons (spring,
summer, fall, and winter); the seasonal variations are influenced by different air mass inflows …

Canopy Leaching Rather than Desorption of PM2.5 From Leaves Is the Dominant Source of Throughfall Dissolved Organic Carbon in Forest

JY Cha, SC Lee, EJ Lee, K Lee, H Lee… - Geophysical …, 2023 - Wiley Online Library
Dissolved organic carbon (DOC) in throughfall plays a vital role in providing carbon and
energy to organisms in forests. We utilized carbon isotope analysis to allocate the sources of …

Seasonal contrasting effects of PM2. 5 on forest productivity in peri‑urban region of Seoul Metropolitan Area, Republic of Korea

H Lee, J Jeon, M Lee, HS Kim - Agricultural and Forest Meteorology, 2022 - Elsevier
Urban forests are recognized as eco-friendly filters to reduce PM 2.5 concentrations.
However, there remains a lack of consensus on how PM 2.5 affects forests' productivity in …

Spatiotemporal Big Data for PM2.5 Exposure and Health Risk Assessment during COVID-19

H He, Y Shen, C Jiang, T Li, M Guo, L Yao - International Journal of …, 2020 - mdpi.com
The coronavirus disease 2019 (COVID-19) first identified at the end of 2019, significantly
impacts the regional environment and human health. This study assesses PM2. 5 exposure …

Source apportionment of carbonaceous aerosols in diverse atmospheric environments of China by dual-carbon isotope method

M Li, M Hu, J Walker, P Gao, X Fang, N Xu… - Science of The Total …, 2022 - Elsevier
Carbonaceous aerosols are major components in PM 2.5 of both polluted and clean
atmosphere. Accurate source apportionment of carbonaceous aerosols may support …

Establishment and evaluation of anthropogenic black and organic carbon emissions over Central Plain, China

H Zhang, S Yin, L Bai, X Lu, C Wang, X Gu, Y Li - Atmospheric Environment, 2020 - Elsevier
Abstract The Central China represented by Henan Province is one of the most haze-polluted
regions in China with high levels of black carbon (BC) and organic carbon (OC) emissions …

Stable Isotopes Unravel the Sources and Transport of PM2.5 in the Yangtze River Delta, China

H Zhang, Z Hong, L Wei, B Thornton, Y Hong, J Chen… - Atmosphere, 2023 - mdpi.com
To understand the sources and migration pattern of PM2. 5 in the Yangtze River Delta
(YRD), China, the total carbon (TC) and total nitrogen (TN) concentrations and the …