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RISS 인기검색어
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- 저자 : 안상수(Sangsu Ahn) (검색결과 2 건)
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광주지역 신축아파트의 휘발성유기화합물 및 카보닐화합물 특성에 관한 연구
김환기(Hwangi Kim),안상수(Sangsu Ahn),박옥현(Okhyun Park),김민진(Minjin Kim),이우진(Woojin Lee),박세일(Seil Park),배석진(Seokjin Bae),서광엽(Gwangyeob Seo) 한국생활환경학회 2021 한국생활환경학회지 Vol.28 No.2
Numerous volatile organic compounds are generated in new apartments. Only six volatile substances are regulated under the Indoor Air Quality Management Act for new apartments. Various other substances are not regulated despite their potential health risks. We investigated 43 types of volatile organic compounds and 7 types of carbonyl compounds which are representative indoor environmental pollutants in new apartments, and 21 types of pollutants were detected. Of the 21 types detected, 91.6 percent accounted for the majority of the 7 species with high concentrations. These seven typical indoor pollutants include regulators Toluene, Formaldehyde, Ethyl-benzene, Xylene, and Styrene, as well as unregulated substances Acetone and Acetaldehyde. The correlation analysis among seven volatile organic compounds was investigated. For the correlation of seven species, the strongest positive correlation between Ethyl-benzene and Styrene r=.933 (p=.001) appeared, and a coefficient of determination(r) between other species was greater than 0.7. This correlation coefficient values indicated that several volatile organic compounds released from the same pollutant sources. Additionally the concentration reduction rate of volatile organic compounds was measured to examine the Bakeout effect. The reduction rate scored as Toluene 85.5%, Xylene 84.7%, Ethyl-benzene 84.4%, Styrene 76.8%, Acetone 73.4%, Acetaldehyde 71.0%, and Formaldehyde 70.9% respectively.
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Hazardous and Noxious Substances 현장탐지용 수질센서의 기술 현황
이창한(Changhan Lee),안상수(Sangsu Ahn),노재하(Jaeha Noh),장지호(Jiho Chang),서동민(Dongmin Seo),이문진(Moonjin Lee) 한국해양환경·에너지학회 2021 한국해양환경·에너지학회 학술대회논문집 Vol.2021 No.10
Hazardous Noxious Sustances (HNS) 해양배출 현장탐지 기술개발을 위하여 환경센서를 중심으로 한 수질 검출 센서 기술의 현황을 조사하였다. 수질 관리는 어느 국가에서나 매우 중요한 과제로 우리나라에서도 지속적으로 관계법령 정비와 시설 투자가 이루어져왔다. 국내에서는 2004년 TMS관리계획을 수립하여 2020년 현재, 984개소 수질TMS 관제센터가 구축되어 수질관제시스템이 작동 중이다. 현재 수질 TMS측정항목은 화학적 산소요구량(COD) 또는 총유기탄수소(TOC), 부유물질량(SS), 총질소(T-N), 총인(T-P), 수소이온농도(pH) 등으로 특히 2020년부터 수질자동측정기기 측정항목이 COD에서 TOC 변경되었다. 하지만 해양으로의 HNS 배출은 원칙적으로 금지되어 있음에도 현실에서 이를 규제할 방안은 미흡하다. 이런 문제를 해결하기 위하여 여러 가지 검토와 법규정 정비가 선행되어야 할 뿐만 아니라 규제대상 특정 HNS에 대한 직접적인 측정과 실시간 데이터 취득에 이용할 새로운 센서 기술에 대한 제안도 중요하다. 본 연구에서는 이러한 목적을 달성하기 위하여 해양산업시설의 탐방, 지적재산권 조사, 학술연구 결과 조사를 통해서 HNS 해양배출시설에 적합한 수질센서에 요구되는 성능과 기술을 탐색하였다. Water quality detection sensor technologies focused on on-site detection technologies have been investigated. Water quality management is a very important task in any country, hence, continuous improvements also has been made on the facilities, laws and regulations. In Korea, a telemonitoring system (TMS) management plan was established in 2004, and now, 984 water quality TMS control centers have been established and are operating now. Current water quality TMS measurement items are including chemical oxygen demand (COD) or total organic carbon (TOC), suspended solids (SS), total nitrogen (T-N), total phosphorus (T-P), and hydrogen ion concentration (pH). Note that, from 2020, the measurement item has been changed from COD to TOC. Although HNS discharge into the sea is prohibited in principle, however, regulation is insufficient in reality. In order to solve this discrimination, various researches and revision of laws and regulations should be preceded. In addition, it is important to research a new sensor technology for direct measurement of regulated HNS and real-time data acquisition too. In this study, the performance and technology required for a water quality sensor suitable for offshore discharge facilities were explored through exploration of marine discharge facilities, intellectual property rights investigations, and academic research results.
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