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신축 공동주택에서 밀폐시간 증가에 따른 실내공기 오염물질의 농도변화
장성기(Seong-Ki Jang),임수길(Soo-Gil Lim),이태형(Tae-Hyung Lee),천재영(Jae-young Chun),류정민(Jung-Min Ryu),서수연(Soo-Yun Seo) 한국실내환경학회 2006 한국실내환경학회지 Vol.3 No.4
This study was carried out to evaluate the characteristics of volatile organic compounds (VOCs) and aldehydes emission as a function of airtight time in new apartment. Sampling was undertaken at 34 new apartments located in 4 different cities of Korea from February to November 2005. The measurement data were collected every one hour from 10 a.m. to 6 p.m. toward increasing airtight time in a day. The concentrations of VOCs and aldehydes were analysed by GC/MS and HPLC method, respectively. These methods showed good sensitivity, linearity, and repeatability. In this study, the most abundant compounds at new apartments appeared to be toluene, m,p-xylene, formaldehyde and acetone. Moreover, the concentration variations at a closed rooms progressively increased by airtight time of 5 hours. Airtight time of new apartment was a most important and affective factor which influenced concentration change.
거주기간 증가에 따른 신축 공동주택의 실내오염도 변화추이
장성기(Seong Ki Jang),류정민(Jung Min Ryu),서수연(Soo Yun Seo),임정연(Jung Yeon Lim),이우석(Woo Seok Lee) 한국분석과학회 2007 분석과학 Vol.20 No.6
신축공동주택의 실내공기질에 영향을 미치는 휘발성유기화합물 및 카보닐화합물의 농도와 입주후 거주기간에 따른 오염도 변화추이를 파악하고자 입주 후 신축 공동주택 120세대를 대상으로 실내공기 오염도를 조사하였다. 신축 공동주택 입주 후 TVOC (Total Volatile Organic Compounds; TVOCs)평균농도는 688.61 ㎍/㎥으로 나타났으며, 포름알데히드, 톨루엔, m, p-자일렌, 아세톤, 에틸벤젠이 158.56 ㎍/㎥, 146.58 ㎍/㎥, 69.28 ㎍/㎥, 63.80 ㎍/㎥, 29.65 ㎍/㎥의 순으로 높게 나타났다. 또한, 대부분의 실내오염물질들은 입주 후 거주기간이 증가함에 따라 평균농도가 감소하는 경향을 나타내었으나, d-리모넨의 경우 입주 후 2개월에서 10개월까지 지속적으로 증가하는 것으로 나타났다. 또한, 톨루엔, 에틸벤젠, m, p, o-자일렌 등의 주요오염물질이 전체 VOCs에서 차지하는 비율은 38.8%로 나타났으며, 거주기간에 증가함에 따라 구성비율이 감소하는 것으로 나타났다. This study is for investigation of indoor conditions with air contamination after occupation 120 households in brand-new apartments by measuring the concentration of VOCs and carbonyl compounds. It has been found that TVOC (total volatile organic compounds; TVOCs) were 688.61 ㎍/㎥ after moving in. And formaldehyde, toluene, m, p-xylene, acetone and ethylbenzene were 158.56 ㎍/㎥, 146.58 ㎍/㎥, 69.28 ㎍/㎥, 63.80 ㎍/㎥ and 29.65 ㎍/㎥, respectively. The mean concentrations of indoor air pollutants tend to decrease along an increase dwelling period. But, the mean concentration of d-limonene increased from 2 months to 10 months. Also, toluene, ethylbenzene, m, p, o-xylene amounted to 38.8 % among VOCs studied, this ratio tend to decrease along with and increased dwelling period.
보육시설 실내공기 중 휘발성유기화합물(VOCs)의 계절적 농도변화에 대한 연구
장성기(Seong-Ki Jang),천재영(Jae-Young Chun),김성연(Sung-Youn Kim),박숙영(Suk-Young Park),류정민(Jung-Min Ryu),임정연(Jung-Yeon Lim),이우석(Woo-Suk Lee) 한국분석과학회 2007 분석과학 Vol.20 No.6
보육시설은 미취학전 아이들에게 중요한 실내 환경이며 하루 중 가장 많은 시간을 보내는 영유아들에 잠재적인 유해한 건강영향을 줄 수 있다. 따라서 본 연구는 2006년 2월에서 12월에 걸쳐 서울에 위치한 보육시설 29개 시설을 선정하여 실태조사를 하였다. 측정물질은 휘발성유기화합물 중 7개의 물질(벤젠, 톨루엔, 에틸벤젠, m, p-자일렌, 스틸렌, o-자일렌 및 TVOC)을 선정하였다. 보육시설에서의 TVOC, 톨루엔, m, p-자일렌, 에틸벤젠, 벤젠 그리고 스틸렌의 평균농도는 318.7 ㎍/㎥, 51.6 ㎍/㎥, 11.7 ㎍/㎥, 6.5 ㎍/㎥, 4.2 ㎍/㎥, 3.6 ㎍/㎥이고, 정성분석된 TVOC 중 톨루엔은 17.6%로 가장 많은 비중을 차지하였다. TVOC와 톨루엔의 실내/실외 농도비는 각각 2.0, 1.6으로 나타났다. TVOCs의 계절에 따른 오염물질의 특성결과는 여름이 433.9 ㎍/㎥로 가장 높게 나타났으며, 다른 계절은 겨울 280.5, 봄 298.3 및 가을 264.6 ㎍/㎥로 비슷한 경향으로 나타났다. Daycare centers are an important indoor environment for pre-school children and exposure area with potential harmful health effects for infants and children who spend most of their daily life. Sampling was undertaken at 29 daycare centers located Seoul in Korea from January, 2006 to December 2006. The target compounds were 7 individual volatile organic compounds (benzene, toluene, ethylbenzene, m,p-xylene, styrene, o-xylene, TVOC). The mean concentrations of TVOC, toluene, m ,p-xylene, ethylbenzene, benzene and styrene in daycare centers were 318.7 ㎍/㎥, 51.6 ㎍/㎥, 11.7 ㎍/㎥, 6.5 ㎍/㎥, 4.2 ㎍/㎥, 3.6 ㎍/㎥, respectively. Toluene occupied 17.6 % of the concentration of individual VOCs. The ratio of indoor and outdoor (I/O) of TVOC and toluene were 2.0 and 1.6, respectively. The results of characteristics according to a season of a year, the concentration of TVOC were measured 433.9 ㎍/㎥, and these concentrations during third quarter of the year in summer were higher than the other season. In the other four seasons, TVOC were measured 280.5 in winter, 298.3 in spring and 264.6 ㎍/㎥ in fall, respectively.
장성기(Seong Ki Jang),이석조(Seock Jo Lee),유승화(Seung Wha Yoo),정경미(Kyung Mi Jung),류정민(Jung Min Ryu) 한국실내환경학회 2004 한국실내환경학회지 Vol.1 No.1
Recently, concern about Sick House Syndrome (SHS) has been increased in Korea. And it is suspected that formaldehyde (HCHO) and volatile organic compounds (VOCs) are major factors for SHS. This study was surveyed the indoor air quality in new apartments in Korea. The HCHO and VOCs were measured at 90 sites and analysed by HPLC-UV and GC/MS, respectively. The range of HCHO concentrations at 90 sites were 9.39∼248.78㎍/㎥ and the mean value 105.41㎍/㎥ and the concentrations of HCHO at 42 sites (46.7%) exceeded the indoor air quality guideline (100㎍/㎥) in Japan. Among the 4 VOCs, toluene concentrations were the highest and the mean value 127.33㎍/㎥ and that concentrations at 12 sites (13.8%) were exceeded the indoor air quality guideline (260㎍/㎥) in Japan. There was a tendency which the longer the movement and measurement period is, the more the pollutants concentration is decreased. HCHO and VOCs concentrations of domestic results was similar to Japan"s survey results in 2000.