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이세행 ( Se Haeng Lee ),정숙경 ( Suk Kyung Jeong ),이경석 ( Kyoung Soek Lee ),민경우 ( Kyong Woo Min ),김현승 ( Hyun Seung Kim ),김도술 ( Do Sool Kim ),강영주 ( Yeong Ju Kang ),배석진 ( Seok Jin Bae ) 한국환경분석학회 2013 환경분석과 독성보건 Vol.16 No.2
The aim of this study is to understand the characteristics of indoor air pollutants and provide information about the present Indoor Air Quality(IAQ) in 104 public facilities from January 2011 to December 2012. The measured air pollutants are PM10, HCHO(formaldehyde), CO, CO2, and total airborne bacteria(TAB). And the effects of environmental factors such as temperature, humidity and construction characteristics were analyzed in relation to the measured concentrations. The results of this study showed that the mean concentration of PM10, CO2, HCHO, CO, and TAB were 55.3 /, 558.6 ppm, 31.0 /, 1.2 ppm, and 561.3 CFU/, respectively. The correlation analysis showed that CO2 and HCHO (r=0.497, p<0.01), CO2 and TAB (r=0.468, p<0.01), and PM10 and CO (r=0.342, p<0.01) were significant. The result of regression analysis was found that the influence factors associated with the concentration of PM10, HCHO, and TAB were the year of building construction, the temperature and the humidity.
광주지역 황사시 미세먼지 유입경로별 중금속 오염도 평가
양윤철,이세행,박병훈,조광운,윤상훈,박지영,장동,정지효,배석진,정숙경,Yang, Yoon-Cheol,Lee, Se-Haeng,Park, Byoung-Hoon,Jo, Gwang-Un,Yoon, Sang-Hoon,Park, Ji-Young,Jang, Dong,Chong, Ji-hyo,Bae, Seok-Jin,Jeong, Suk-Kyoung 한국환경과학회 2020 한국환경과학회지 Vol.29 No.1
The purpose of this study is to investigate the relationship of fine dust PM<sub>10</sub> and heavy metals in PM<sub>10</sub> in Asian dust flowing into Gwangju from 2013 to 2018. The migration pathways of Asian dust was analyzed by backward trajectory analysis using HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) model, and the change of heavy metal concentration and heavy metal content per 1 ㎍/㎥ of fine dust PM<sub>10</sub> in Gwangju area were analyzed. Also, the characteristics of the heavy metals were analyzed using the correlation between the heavy metals in PM<sub>10</sub>. As a result of analyzing Asian dust entering the Gwangju region for 6 years, the average concentration of PM<sub>10</sub> measured in Asian dust was 148 ㎍/㎥, which was about 4.5 times higher than in non-Asian dust, 33 ㎍/㎥. A total of 13 Asian dust flowed into the Gwangju during 6 years, and high concentration of PM10 and heavy metals in that were analyzed in the C path flowing through the Gobi/Loess Plateau-Korean Peninsula. As a result of the correlation analysis, in case of Asian dust, there was a high correlation between soil components in heavy metals, so Asian dust seems to have a large external inflow. On the other hand, in case of non-Asian dust, the correlation between find dust PM<sub>10</sub> and artificial heavy metal components was high, indicating that the influence of industrial activities in Gwangju area was high.
안상수 ( Sang-su An ),위환 ( Whan Wi ),윤상훈 ( Sang-hoon Yoon ),장서은 ( Seo-eun Jang ),정숙경 ( Suk-kyoung Jeong ),조영관 ( Young-gwan Cho ),김은선 ( Eun-sun Kim ) 한국환경분석학회 2016 환경분석과 독성보건 Vol.19 No.2
To investigate the characteristics of rainwater quality as pH, color, turbidity, EC (electronic conductivity) and heavy metals in Gwangju area, 43 samples were collected at initial rainfall amounts over 3 mm/day during March to October in 2015. For 32 samples over 5 mm/day rainfall amount, pH was 4.8~6.5, and turbidity, color and NH3-N were 0.77~97.88 NTU, 4~16 degree, 0.6~12.0 mg/L, respectively, which are exceeding the drinking water standard. Heavy metals (except for Fe, Zn and Cu), volatile organic compounds and pesticides were not detected. Concentrations of color and turbidity in rainwater were decreased contrarily to the lapsed time at the storage, whereas the concentration of Zn was not so much changed compare to the initial state. Particulate matter (PM10) in air has the negative correlation with pH and positive correlations with turbidity, color and EC in rainwater. Seasonal variation showed that pH, DO, turbidity, color and EC in spring was lower than in summer with the influence of rainfall frequency and amount. Rainwater quality of pH, color and turbidity was lowered depending on the lapsed time for 10 days. pH was a little higher at concrete storage tank than at FRP storage tank because alkaline compound as CaCO3 flow out of the concrete surface, whereas turbidity was a little higher at FRP storage tank than at concrete storage tank.