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배철민(Cheol Min Bae),손재훈(Jae Hun Son),김세환(Se Hwan Kim) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
Many areas focus on energy saving according to the decreased amount of finite resources and increased interests of alternative recourses and energies. As a result, Many apartments have only installed ventilation systems in underground parking lots and aren’t operating machine ventilation systems to save money, causing pollution of indoor air quality in underground parking lots. Since most modern people have their own cars, we studied indoor air pollutants in underground parking lots, which are used by a large number of people at a particular time, unlike residential spaces and office spaces. The results of the measurement show that Rn, CO2, CO varies depending on the presence of the ventilation system, and shows the necessity of ventilation at times when comparing the indoor air quality of each parking lot, such as rush hour.
강원도 유통 발효주 중 바이오제닉 아민류 함량 조사 및 위해도 평가
배철민(Cheol-Min Bae),신인철(In-Cheol Shin),이완(Woan Lee),이혁화(Heok-Hwa Lee),최여은(Yeo-Eun Choi),김영주(Young-Ju Kim),이가희(Ga-Hee Lee),정경진(Kyung-Jin Jeong),최승봉(Seung-Bong Choi) 한국환경보건학회 2020 한국환경보건학회지 Vol.46 No.3
Objectives: This study was conducted to estimate the related health risk by investigating the content of biogenic amines (BAs) in commercial fermented alcoholic beverages. Methods: Ninety-seven samples, including takjus (34), fruit wines (26), distilled liquors (20) and beers (17) were purchased in Gangwon-do (Province) in 2019. The eight BAs (putrescine, cadaverine, spermine, spermidine, tyramine, β-phenylethylamine, histamine, and tryptamine) were analyzed by high performance liquid chromatograph (HPLC) after extraction (0.4 M HClO4), pigment removal (carbon cartridge) and derivatization (1% dansylchloride). The health risk of exposure to BAs due to ingestion of commercial fermented alcoholic beverages was estimated as the margin of exposure (MOE). Results: Various BAs were detected in takju, fruit wine, distilled liquor and beer. Putrescine (not detected (ND)- 12.60 mg/L), cadaverine (ND-5.45 mg/L), tyramine (ND-8.34 mg/L), β-phenylethylamine (ND-13.73 mg/L), histamine (ND-7.96 mg/L), and tryptamine (ND-19.00 mg/L) were found in takju. Putrescine (ND-15.34 mg/L), cadaverine (ND-7.90 mg/L), β-phenylethylamine (ND-3.06 mg/L), histamine (ND-9.68 mg/L), and tryptamine (ND-14.06 mg/L) were identified in fruit wine. Putrescine (less than limit of detection (<LOD)-1.31 mg/L), cadaverine (ND-4.21 mg/L), and tryptamine (ND-75.23 mg/L) were found in distilled liquor. Putrescine (ND- 11.42 mg/L), cadaverine (ND-12.66 mg/L), β-phenylethylamine (ND-6.26 mg/L), and tryptamine (ND-4.07 mg/ L) were detected in beer. On the other hand, spermine and spermidine were not detected in all samples. The risk assessment results confirmed by MOE were all greater than ten (minimum: 92, maximum: 9,191), so the health risk was deemed low. Conclusions: The commercial fermented alcoholic beverages contained various BAs, and there was a difference in BA species and detection amount according to type. The health risk was estimated to be low given that the MOE was all greater than ten.
정원구 ( Won-gu Jeong ),허인량 ( In-ryang Huh ),이건호 ( Geon-ho Yi ),김세희 ( Se-hee Kim ),배철민 ( Cheol-min Bae ),박운지 ( Un-ji Park ),최승봉 ( Seung-bong Choi ),김종철 ( Chong-cheol Kim ) 한국환경분석학회 2017 환경분석과 독성보건 Vol.20 No.1
We monitored the monthly change of water quality on the site of the nonpoint management area of Heanmyeon in Yang-gu County from 2009 to 2015. We found that SS, TP, and COD values were highly correlated with turbidity water concentration. Additionally, we monitored changes in turbidity using a real-time monitoring system. Using the data, the stage-discharge rating curve was calculated and we analyzed the correlations of COD, SS, and TP with the turbidity value. We found that SS concentration decreased by 48.1~83.6% under 10~30 mm rain fall and 72.1~86.6% under 30~50 mm rainfall as a result of comparing the event mean concentrations (EMCs) of SS with rainfall events that occurred in 2010 and 2014. We analyzed the rainfall and SS discharge rate per area based on the log data. Water quality was higher in 2014 than in 2010 during rainfall events. We concluded that the water quality at Mandae watershed was improved continuously by progress of non-point management policy.