Spatiotemporal empirical analysis of particulate matter PM2. 5 pollution and air quality index (AQI) trends in Africa using MERRA-2 reanalysis datasets (1980–2021)

YO Ouma, A Keitsile, L Lottering, B Nkwae… - Science of The Total …, 2024 - Elsevier
In this study, the spatial-temporal trends of PM 2.5 pollution were analyzed for subregions in
Africa and the entire continent from 1980 to 2021. The distributions and trends of PM 2.5 …

Past and recent changes in the pollution characteristics of PM10 and SO2 in the largest industrial city in South Korea

SJ Lee, CK Song, SD Choi - Atmospheric Environment, 2024 - Elsevier
PM 10 and SO 2 are major air pollutants in Ulsan, the largest industrial city in South Korea.
The purpose of this study was to evaluate the effectiveness of pollution reduction policies by …

Day–night variation, size distribution, source identification, and health risk of polycyclic aromatic hydrocarbons in particulate matter in Ulsan, South Korea

T Van Do, QT Vuong, EO Nwankwo, SD Choi - Atmospheric Environment, 2024 - Elsevier
Particulate matter (PM) in 11 different sizes was collected at a semi-rural site in Ulsan, a
multi-industrial city in South Korea, over one year from 2019 to 2020 to investigate the …

Map** nationwide concentrations of sulfate and nitrate in ambient PM2. 5 in South Korea using machine learning with ground observation data

SJ Lee, JT Ju, JJ Lee, CK Song, SA Shin… - Science of The Total …, 2024 - Elsevier
Particulate matter (PM) is a major air pollutant in Northeast Asia, with frequent high PM
episodes. To investigate the nationwide spatial distribution maps of PM 2.5 and secondary …

Measurement of black carbon exposure in urban classrooms during rush hours

D Park, K Kang, H Na, J Lee, S Kim, T Kim - Atmospheric Pollution …, 2024 - Elsevier
Traffic-related air pollutants are predominantly emitted in urban environments; therefore,
analyzing their impact on indoor air quality (IAQ) is important. Effectively managing IAQ is …

Comparisons of Spatial and Temporal Variations in PM2.5-Bound Trace Elements in Urban and Rural Areas of South Korea, and Associated Potential Health Risks

J Nirmalkar, K Lee, J Ahn, J Lee, M Song - Atmosphere, 2023 - mdpi.com
PM2. 5-bound trace elements were chosen for health risk assessment because they have
been linked to an increased risk of respiratory and cardiovascular illness. Since the Korean …

Enhancement of PM2. 5 source appointment in a large industrial city of Korea by applying the elemental carbon tracer method for positive matrix factorization (PMF) …

YS Han, DM Eun, G Lee, SY Gong, JS Youn - Atmospheric Pollution …, 2023 - Elsevier
The concentration of particulate matter with an aerodynamic diameter less than 2.5 μm (PM
2.5) measured in an industrial area is strongly influenced by the industrial characteristics of …

The ratio of concentration of organic carbon and elemental carbon bound to particulate matter in ambient air: a global systematic review and meta-analysis

Y Fakhri, M Sarafraz, A Javid, M Moradi… - International Journal …, 2024 - Taylor & Francis
Four hundred and sixty-six references with 625 data reports were included in our study. The
high frequency of ratio OC/EC for PM0. 1 was observed in 3.92–5.93; PM1 in 1.08–3.08; …

Characteristics of PM2. 5-bound metals in Japan over six years: Spatial distribution, health risk, and source analysis

X Zhang, M Sun, M Aikawa - Journal of Environmental Management, 2023 - Elsevier
Air sampling campaigns were conducted at 100 survey sites across Japan from April 2014 to
February 2020, and a comprehensive database of atmospheric particles was obtained. In …

Map** the spatial distribution of primary and secondary PM2. 5 in a multi-industrial city by combining monitoring and modeling results

SJ Lee, HY Lee, SJ Kim, NK Kim, M Jo, CK Song… - Environmental …, 2024 - Elsevier
Industrial cities are strongly influenced by primary emissions of PM 2.5 from local industries.
In addition, gaseous precursors, such as sulfur oxides (SO X), nitrogen oxides (NO X), and …