Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.687
Gahye Lee, Jeongho Kim, Sechan Park, M. Song, Kwanchul Kim, Dasom Lee, W. Choi, Jong Bum Kim
{"title":"Characteristics of Spatial and Temporal Distribution of VOCs around Painting Facilities and Roadside Located near Cheonan Downtown Area","authors":"Gahye Lee, Jeongho Kim, Sechan Park, M. Song, Kwanchul Kim, Dasom Lee, W. Choi, Jong Bum Kim","doi":"10.5572/kosae.2022.38.5.687","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.687","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48873490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.669
Seong-Hun Pyo, Kwonho Lee
{"title":"Estimation of Aerosol Radiative Forcing Using Deep Learning Technique","authors":"Seong-Hun Pyo, Kwonho Lee","doi":"10.5572/kosae.2022.38.5.669","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.669","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46151678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.746
Yoon-hee Kang, Soontae Kim
{"title":"Seasonal PM Management: ( I ) What Emissions Should be Reduced?","authors":"Yoon-hee Kang, Soontae Kim","doi":"10.5572/kosae.2022.38.5.746","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.746","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48924812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.641
S. Park
{"title":"Investigation on Change in Accumulation Mode Size Distributions of Secondary Inorganic Salts with PM2.5/PM10 during Late Fall at an Urban Site in Gwangju","authors":"S. Park","doi":"10.5572/kosae.2022.38.5.641","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.641","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42501551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.716
Yoon-hee Kang, Soontae Kim
{"title":"Estimating Oxidation Rates of NOX and SO2 Released from Domestic Emission Sources in South Korea","authors":"Yoon-hee Kang, Soontae Kim","doi":"10.5572/kosae.2022.38.5.716","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.716","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48746030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.653
S. Park, Saebyul Han
{"title":"Source Apportionment of Black Carbon in PM2.5 Observed Using a Real-time Seven-wavelength Aethalometer at an Urban Site of Gwangju","authors":"S. Park, Saebyul Han","doi":"10.5572/kosae.2022.38.5.653","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.653","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44763595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-31DOI: 10.5572/kosae.2022.38.5.702
Junghoon Moon, Jayant Nirmalkar, T. Hwang, Daegon Kim, J. Yang, Jinsang Jung
{"title":"Comparison of Visibility Impairment Due to the Change in PM2.5 Chemical Compositions in Daejeon between 2014 and 2020","authors":"Junghoon Moon, Jayant Nirmalkar, T. Hwang, Daegon Kim, J. Yang, Jinsang Jung","doi":"10.5572/kosae.2022.38.5.702","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.5.702","url":null,"abstract":"","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46821183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.5572/kosae.2022.38.4.599
Dasom Lee, Daehwan Kim, Donghee Lee, M. Song, Jong Bum Kim, W. Choi, C. Hong, Kwanchul Kim
Paju National Publishing Complex emitted many Volatile Organic Compounds (VOCs). As a precursor of ozone and secondary organic aerosol, VOCs effected on climate change, air quality degradation, and human health. In this study, we used a real-time monitoring device of proton transfer reaction-time of flight-mass spectrometer (PTR-ToF-Ms) on board a mobile laboratory to measure the concentration on the Paju National Publishing Complex from September 9 to September 11, 2021. Mobile measurement found that dominant species of VOCs in the Paju National Publishing Complex are investigated with toluene (22.51 ± 2.14%), methanol (19.04 ± 0.96%), and acetone (16.39 ± 0.61%). Temporal and spatial distributions of VOCs on Sep. 9 (M6), Sep. 10 (M8), and Sep. 11 (M15) cases showed mostly high concentrations. Moreover, heatmap analysis suggested a high pollution area near the printing industry. Based on the characteristics of VOCs distribution, it is conceivable that small-scale industry emission control could lead to regional air quality improvement.
{"title":"A Study on Distribution of Volatile Organic Compounds Concentration over Paju National Publishing Complex","authors":"Dasom Lee, Daehwan Kim, Donghee Lee, M. Song, Jong Bum Kim, W. Choi, C. Hong, Kwanchul Kim","doi":"10.5572/kosae.2022.38.4.599","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.4.599","url":null,"abstract":"Paju National Publishing Complex emitted many Volatile Organic Compounds (VOCs). As a precursor of ozone and secondary organic aerosol, VOCs effected on climate change, air quality degradation, and human health. In this study, we used a real-time monitoring device of proton transfer reaction-time of flight-mass spectrometer (PTR-ToF-Ms) on board a mobile laboratory to measure the concentration on the Paju National Publishing Complex from September 9 to September 11, 2021. Mobile measurement found that dominant species of VOCs in the Paju National Publishing Complex are investigated with toluene (22.51 ± 2.14%), methanol (19.04 ± 0.96%), and acetone (16.39 ± 0.61%). Temporal and spatial distributions of VOCs on Sep. 9 (M6), Sep. 10 (M8), and Sep. 11 (M15) cases showed mostly high concentrations. Moreover, heatmap analysis suggested a high pollution area near the printing industry. Based on the characteristics of VOCs distribution, it is conceivable that small-scale industry emission control could lead to regional air quality improvement.","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43141432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.5572/kosae.2022.38.4.557
J. Kim, Won-Seok Jung, Wonick Seo, Shanlan Li, S. Oh, Daegeun Shin, H. Ko, Hee-Jung Yoo, C. Chung, Yeonhee Kim
The meteorological and aerosol characteristics of heavy dust during the 2021 YES-AQ campaign were analyzed. The source region of Asian Dust were sufficiently warm and dry, which is a proper condition for dust particles to be well intruded from the surface into the air above. Asian dust transported to the Shandong peninsula in China by the northwesterly, and then flowed into the Korean peninsula by the westerly. When the fine-mode aerosol is dominated in the period before arrival of Asian dust, scattering mass efficiency of PM 10 was 5.3 m 2 /g and secondary pollutants such as sulfate, nitrate, and ammonium accountd for 50% of the total PM 10 mass concentration. During the heavy dust period, PM 10 mass concentration was maintained at 676 ~ 1,384 µg/m 3 for about 24 hours from 21 KST on March 29, 2021 which is 25 times higher than the PM 10 mass concentration before the Asian dust arrived. The light absorption coefficient in the heavy dust period was 38.5 ± 9.4 Mm - 1 , which was higher than in the period before the arrival of Asian dust (22.5 ± 10.2 Mm - 1 ) confirming the Asian dust was highly absorbing. The scattering Ångström exponent and absorption Ångström exponent were 0.29 and 2.64, respectively, which are similar to the values reported around the Asian Dust source region. Although the concentration of fine particles did not increase during HD, it is pre-sumed that the Asian Dust and fine particles were combined as the concentration of ions of anthropogenic pollutants increased to 15 µg/m 3 . Aerosol physical and optical properties were observed at 0.5 ~ 5.0 km over the Yellow Sea using an aircraft during HD. The coarse particle concentration and light scattering coefficient (545.7 Mm - 1 ) and the light absorption coefficient (23.1 Mm - 1 ) were the highest at the altitude of 0.9 km (36.5°N, 124.4°E). The scattering Ångström exponent ( - 0.067 ± 0.13) and the absorption Ångström exponent (1.3 ~ 1.9) showed distinct characteristics of dust. The vertical lapse rate of the temperature from the aircraft and the backward trajectory analysis declared that the air origins were different below and over the altitude of 1.8 km.
分析了2021年“YES-AQ”运动期间的重尘气象特征和气溶胶特征。亚洲沙尘源区温暖干燥，为沙尘颗粒从地表进入大气提供了有利条件。亚洲沙尘由西北风吹入中国山东半岛，再由西风吹入朝鲜半岛。亚洲沙尘到来前以细态气溶胶为主时，PM 10的散射质量效率为5.3 m2 /g，硫酸盐、硝酸盐、铵等二次污染物占PM 10总质量浓度的50%。在强沙尘期，从2021年3月29日21时起，pm10质量浓度维持在676 ~ 1384µg/m 3约24小时，比亚洲沙尘到来前的pm10质量浓度高出25倍。强沙尘期的光吸收系数为38.5±9.4 Mm - 1，高于亚洲沙尘到来前的22.5±10.2 Mm - 1，说明亚洲沙尘具有较强的吸收能力。散射Ångström指数和吸收Ångström指数分别为0.29和2.64，与亚洲沙源区附近报道的数值相近。虽然细颗粒物浓度在HD期间没有增加，但可以推测，随着人为污染物离子浓度增加到15µg/m 3，亚洲尘与细颗粒物结合。在HD期间，利用飞机在黄海上空0.5 ~ 5.0 km处观测了气溶胶的物理和光学性质。在海拔0.9 km(36.5°N, 124.4°E)处，粗颗粒浓度和光散射系数(545.7 Mm - 1)和光吸收系数(23.1 Mm - 1)最高。散射Ångström指数(- 0.067±0.13)和吸收Ångström指数(1.3 ~ 1.9)表现出明显的粉尘特征。飞机的垂直温度递减率和反轨迹分析表明，1.8公里以下和1.8公里以上的空气源不同。
{"title":"Characteristics of Asian Dust Observed over the Yellow Sea during YES-AQ Campaign in March, 2021 based on Vessel and Aircraft Measurement","authors":"J. Kim, Won-Seok Jung, Wonick Seo, Shanlan Li, S. Oh, Daegeun Shin, H. Ko, Hee-Jung Yoo, C. Chung, Yeonhee Kim","doi":"10.5572/kosae.2022.38.4.557","DOIUrl":"https://doi.org/10.5572/kosae.2022.38.4.557","url":null,"abstract":"The meteorological and aerosol characteristics of heavy dust during the 2021 YES-AQ campaign were analyzed. The source region of Asian Dust were sufficiently warm and dry, which is a proper condition for dust particles to be well intruded from the surface into the air above. Asian dust transported to the Shandong peninsula in China by the northwesterly, and then flowed into the Korean peninsula by the westerly. When the fine-mode aerosol is dominated in the period before arrival of Asian dust, scattering mass efficiency of PM 10 was 5.3 m 2 /g and secondary pollutants such as sulfate, nitrate, and ammonium accountd for 50% of the total PM 10 mass concentration. During the heavy dust period, PM 10 mass concentration was maintained at 676 ~ 1,384 µg/m 3 for about 24 hours from 21 KST on March 29, 2021 which is 25 times higher than the PM 10 mass concentration before the Asian dust arrived. The light absorption coefficient in the heavy dust period was 38.5 ± 9.4 Mm - 1 , which was higher than in the period before the arrival of Asian dust (22.5 ± 10.2 Mm - 1 ) confirming the Asian dust was highly absorbing. The scattering Ångström exponent and absorption Ångström exponent were 0.29 and 2.64, respectively, which are similar to the values reported around the Asian Dust source region. Although the concentration of fine particles did not increase during HD, it is pre-sumed that the Asian Dust and fine particles were combined as the concentration of ions of anthropogenic pollutants increased to 15 µg/m 3 . Aerosol physical and optical properties were observed at 0.5 ~ 5.0 km over the Yellow Sea using an aircraft during HD. The coarse particle concentration and light scattering coefficient (545.7 Mm - 1 ) and the light absorption coefficient (23.1 Mm - 1 ) were the highest at the altitude of 0.9 km (36.5°N, 124.4°E). The scattering Ångström exponent ( - 0.067 ± 0.13) and the absorption Ångström exponent (1.3 ~ 1.9) showed distinct characteristics of dust. The vertical lapse rate of the temperature from the aircraft and the backward trajectory analysis declared that the air origins were different below and over the altitude of 1.8 km.","PeriodicalId":16269,"journal":{"name":"Journal of Korean Society for Atmospheric Environment","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46090874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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