• Journal of Korean Society for Atmospheric Environment
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• 제18권E2호
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• pp.69-77
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• 2002

The nationwide NO$_2$monitoring program has been carried out using the passive sampler in Korea since 1993. During the sixteenth periods of measurement, total 26,474 sites of data were collected through eight years. In this paper, the roadside NO$_2$concentration of six major cities were analyzed. As results, the most frequent NO$_2$concentration of Seoul, Incheon, and Daegu ranged from 40 to 60 ppb, and that of Pusan, Kwanju, and Daejeon was from 20 to 40 ppd. Despite that the automobile number of Incheon was less than that of Daegu and Pusan, the exceedence rate of Korean national ambient air quality standard and ninetieth percentile concentration of Incheon were almost the same level as Seoul. In addition, the mean and standard deviation of roadside NO$_2$concentration of Seoul and Incheon was also appeared to be higher than that of other cities. These results indicates that NO$_2$concentration on roadside was affected by the traffic volumes and the traffic flow conditions.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 1999년도 추계학술대회 논문집
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• pp.170-171
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• 1999

대기 중 오염물질의 확산 및 미래의 예측을 위하여 대기확산모형을 많이 사용하고 있으며, 국내에서 사용하고 있는 대기확산모형의 대부분은 미국 EPA에서 보급하는 것을 사용하고 있다. 이 중에서 최근에 많이 사용하고 있는 단기모형으로는 기간과 지형이 고려되는 ISCST3 모형을 들 수 있다. 국내 모델의 사용에 있어서 가장 중요한 문제점은 모델의 검정과 보정을 위한 data의 부재를 들 수 있다.(중략)

• 한국환경보건학회:학술대회논문집
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• 한국환경보건학회 2005년도 국제학술대회
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• pp.371-372
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• 2005

Active sampler has been widely used to measure nicotine concentration in air. The experiments were conducted to compare the active sampler method with diffusive sampler in exposure chamber and smoking areas, respectively. The result of these tests that indicated that passive sampler can be used instead of active sampler in ETS, because coefficient of determination was 0.9292 between active and passive sampling in smoking area

• 한국대기환경학회지
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• 제23권6호
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• pp.734-743
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• 2007

Polyurethane foam-disk passive air samplers (PAS) were deployed in a southern area of Korea for three months. The target compounds were 12 coplanar polychlorinated biphenyls (PCBs). The congener profiles measured in this study were the same as those in ambient air and emission gas from the incinerator. A gradient of the total PCBs in different regions (industrial>residential>rural) was observed, suggesting the industrial complex may be an important source of coplanar PCBs. In general, only gas-phase compounds are mainly sequestrated by PAS. In order to estimate the concentration of particle-phase PCBs, a gas/particle partition model was used. A combined result (gas+particle-phase PCBs) was compared with previous results, indicating that the level of coplanar PCBs in our study area is comparable to those in other urban sites in the world. The validation of this method for estimating the total concentration is required through additional backup studies.

• 보존과학회지
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• 제33권5호
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• pp.319-329
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• 2017

이 연구에서는 Passive sampler를 이용하여 연구대상으로 선정된 2곳의 유물 전시관 내부의 폼알데하이드 농도를 2012년 5월부터 2013년 4월까지 1년간 공간별로 모니터링 하였다. 이 결과, 유물 전시관 내부의 폼알데하이드 농도는 외기에 비해 5배~36배 이상 높은 수치를 나타냈다. 각 전시실과 진열장 내부는 오염원, 공기조화설비, 환경관리에 따라 농도 수준을 달리하였다. 유물 전시관 내 폼알데하이드 농도 수준을 주시험법에 준하여 보정한 결과, 대부분이 환경부의 실내공기질 관리법에서 고시하는 전시실 유지기준($100{\mu}g/m^3$) 뿐만 아니라 일본 국립동경박물관에서 권고하는 문화재 보존환경 기준(약 $50{\mu}g/m^3$)을 모두 초과하였다. 전시실과 진열장 내 폼알데하이드의 농도는 모두 여름>가을>봄>겨울 순으로 높았으며 온 습도가 높은 여름철에 농도 방출량이 증가하였다. 온 습도환경 변화에 따른 폼알데하이드의 농도는 모두 양의 상관관계를 나타냈다. 온도의 경우 $R^2$값이 0.8~0.9의 범위로 폼알데하이드 농도가 습도에 비해 온도에 대한 의존 경향이 큰 것을 알 수 있다. 유물 전시관 내 폼알데하이드 방출 특성 분석은 실내공기질을 개선하는데 기초자료로 활용될 수 있을 것이다.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2006년도 춘계학술대회 논문집
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• pp.438-439
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• 2006

• Environmental Analysis Health and Toxicology
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• 제26권
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• pp.4.1-4.6
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• 2011

Objectives: This study was carried out to determine whether or not pine needles can be used as passive samplers of atmospheric polycyclic aromatic hydrocarbons (PAHs) using the correlation between accumulated PAH concentrations in air (Ca, ng/$m^3$) and those deposited on pine needles (Cp, ng/g dry). Methods: PAHs in ambient air was collected using low volume PUF sampler and pine needles was gathered at same place for 7 months. Results: A good correlation ($R^2$=0.8582, p<0.05) was found between Ca and Cp for PAHs with a higher gaseous state in air (AcPy, Acp, Flu, Phen, Ant, Flt, Pyr, BaA and Chry), but there was a poorer correlation ($R^2$=0.1491, p=0.5123) for the PAHs with a lower gaseous state (BbF, BkF, BaP, DahA, BghiP and Ind123). A positive correlation ($R^2$=0.8542) was revealed between the logarithm of the octanol-air partitioning coefficient ($logK_{oa}$) and Cp/Ca for the PAHs with a higher gaseous state in air, but there was a negative correlation ($R^2$=0.8131) for the PAHs with a lower gaseous state. The Ca-Cp model could not be used to estimate PAHs concentrations in air using deposited PAHs concentrations on pine needles, but the logKoa-Cp/Ca model could be used. Conclusions: It was found that pine needles can be used as passive samplers of atmospheric PAHs.

• Journal of Korean Society for Atmospheric Environment
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• 제9권E호
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• pp.373-381
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• 1993

To understand the human exposure levels of volatile halogenated hydrocar-bons in ambient air, a new rapid and convenient analytical method for determination of the compounds in gaseous phase was evaluated and established. The method is based upon passsive diffusion to personal sampler containing adsorbent and solvent extraction followed by purge trap/ on-column cryof-ocusing method. A new method needs no special instrumentation for gas collection because it is based upon the passive diffusion principle. The typical chromatogram obtained in this study proved that rapid and simultaneous determination of target analytes was possible with good resolution. The developed method was successfully applied to determine the volatile halogenated hydrocarbons in indoor air and the values obtained by this new method were compared with those by direct suction method. The concentration of carbon tetrachloride, 1,1,2-trichloroethylene, chloroform showed the values below 400$\mug/m^3$ except the maximum of 1,513$\mug/m^3$ of chloroform. 1,1,1-Trichloroethane showed approximately 1,000 to 5,000$\mug/m^3$ range of diurnal fluctuation in indoor air.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2007년도 추계학술대회 논문집
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• pp.548-549
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• 2007

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2000년도 춘계학술대회 논문집
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• pp.340-341
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• 2000

환경부에서 규제하고 있는 악취규제물질 중 자극적이며 화장실에서 나는 냄새와 유사한 성격을 가진 암모니아는 식품 및 화학공장 둥의 산업시설은 물론 환경기초시설, 대규모 농수산시장 등에서 발생하여 생활환경에서 빈번하게 감지할 수 있는 대표적인 악취유발물질의 하나이다. 이러한 암모니아를 분석할 수 있는 방법은 피리딘-피라졸론법, 네슬러법, 인도페놀법, CG-FTD법 둥 여러 실험방법이 제안되고 있으나 공기를 강제적으로 흡입하여 붕산흡수액과 접촉시켜 암모니아를 채취하고, 발색시약과의 반응에 의해 생성되는 푸른색의 인도페놀을 측정하여 암모니아를 정량하는 인도페놀법이 가장 광범위하게 이용되고 있다. (중략)