Asian Journal of Atmospheric Environment
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Seasonal variation, source identification, and health risk assessment of atmospheric polycyclic aromatic hydrocarbons (PAHs) in Ulsan, South KoreaAbstract Gaseous and particulate 21 PAHs were monitored at a residential site in Ulsan, South Korea, over three seasons (December 2013–August 2014). The mean concentrations of Σ21 PAHs were highest in winter (16.2 ± 8.2 ng/m3 ), followed by spring (8.37 ± 4.53 ng/m3 ) and summer (6.23 ± 2.53 ng/m... ...
Asian Journal of Atmospheric Environment - Tập 18 Số 1
A Review of Photocatalytic Treatment for Various Air Pollutants
Asian Journal of Atmospheric Environment - Tập 5 - Trang 181-188 - 2011
Photocatalysis is a photochemical catalytic reaction which is a highly promising tool for the environmental cleanup process. It is very effective in treatment of environmental pollutants by its unique redox property. It has wide applications in the treatment of atmospheric pollutants (e.g., nitrogen dioxide, trichloroethylene, volatile organics, hydrogen sulfide, benzene, etc) through oxidative re......
Air Pollution Trends in Japan between 1970 and 2012 and Impact of Urban Air Pollution Countermeasures
Asian Journal of Atmospheric Environment - Tập 7 - Trang 177-190 - 2013
Air pollution trends in Japan between 1970 and 2012 were analyzed, and the impact of air pollution countermeasures was evaluated. Concentrations of CO decreased from 1970 to 2012, and in 2012, the Japanese environmental quality standard (EQS) for CO was satisfied. Concentrations of SO2 dropped markedly in the 1970s, owing to use of desulfurization technologies and low-sulfur heavy oil. Major reduc......
Đặc điểm của các dấu chân STILT được điều khiển bởi các trường khí tượng mô phỏng bởi mô hình KIM: ý nghĩa đối với việc phát triển các dấu chân gần thời gian thực Dịch bởi AI
Asian Journal of Atmospheric Environment - Tập 17 - Trang 1-14 - 2023
Nghiên cứu này trình bày một phân tích về độ nhạy của các dấu chân khí quyển và sự gia tăng CO2 được đo tại ba trạm hiện trường ở Hàn Quốc (Anmyeondo (AMY), Gosan (JGS), Ulleungdo (ULD)) bằng cách sử dụng các mô hình vận chuyển khí quyển KIM-STILT và WRF-STILT. Các dấu chân tích lũy hàng tháng cho mỗi trạm đã được so sánh giữa các mô hình cho tháng Bảy và tháng Mười Hai năm 2020. Các dấu chân đã t......
A CFD Study of Roadside Barrier Impact on the Dispersion of Road Air Pollution
Asian Journal of Atmospheric Environment - Tập 9 - Trang 22-30 - 2015
This study evaluated road shape and roadside barrier impact on near-road air pollution dispersion using FLUENT computational fluid dynamics (CFD) model. Simulated road shapes are three types, namely atgrade, depressed, and filled road. The realizable k−ε model in FLUENT CFD code was used to simulate the flow and dispersion around road. The selected concentration profile results were compared with ......
Personal Exposure to PM2.5 in the Massive Transport System of Bogotá and Medellín, Colombia
Asian Journal of Atmospheric Environment - Tập 14 - Trang 210-224 - 2020
Recent studies have shown that public transport users can be exposed to high levels of pollution emitted from their own vehicles and nearby sources. The purpose of this research is to determine the personal exposure of passengers to PM2.5 inside the vehicles of the massive public transport of two of the main and more populated cities of Colombia, Bogotá and Medellín. TM (TransMilenio powered by di......
Effect of Precipitation on Air Pollutant Concentration in Seoul, Korea
Asian Journal of Atmospheric Environment - - 2014
In this study, long-term rainfall data with irregular spatial distribution in Seoul, Korea, were separated into individual precipitation events by the inter-event time definition of 6 hours. Precipitation washout of PM10 and NO2 concentrations in the air considering various complex factors were analyzed quantitatively. Concentrations of PM10 and NO2 in the atmosphere were lower under condition of ......
Experimental Studies on the Effects of Ozone on Growth and Photosynthetic Activity of Japanese Forest Tree Species
Asian Journal of Atmospheric Environment - Tập 5 - Trang 65-78 - 2011
Ozone (O3) is a main component of photochemical oxidants, and a phytotoxic anthropogenic air pollutant. In North America and Europe, the current concentration of O3 has been shown to have significant adverse effects on vegetation. In this review, we summarize the experimental studies on the effects of O3 on the growth and photosynthetic activity of Japanese forest tree species to understand the pr......
Bioremediation of Binary System of Reactive Red 120 Dye and Cr(III) Using Aspergillus tamari and Statistical Validation of Response
Asian Journal of Atmospheric Environment - - 2019
The efficiency of Aspergillus tamarii (isolated from sludge of a textile industry) was investigated to remediate the synthetic solutions of reactive red 120 (RR120) dye and chromium(III) separately. Also, parallel studies were conducted on the bioremediation of binary system of chromium(III) and RR120 dye in different ratios. The study was conducted to find the potential of the A. tamarii for remo......
Comparison between Atmospheric Chemistry Model and Observations Utilizing the RAQMS-CMAQ Linkage, Part II : Impact on PM2.5 Mass Concentrations Simulated
Asian Journal of Atmospheric Environment - Tập 8 - Trang 108-114 - 2014
In the companion paper (Lee et al., 2012), it was showed that CMAQ simulation using a lateral boundary conditions (LBCs) derived from RAQMS-CMAQ linkage, compared to the CMAQ results with the default CMAQ LBCs, improved ozone simulations in the conterminous US domain. In the present paper, the study is extended to investigate the influence of LBCs on PM2.5 simulation. MM5-SMOKE-CMAQ modeling syste......
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