• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.313-314
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• 2001

현재까지 국내에서 주로 사용되고 있는 이산화질소 측정법은 Saltzman법, Jacobs-Hochheiser법과 같은 실험실적 분석방법과 연속측정이 가능한 자동 Saltzman법, 화학발광법 등이 대표적이다. (대기오염연구회, 2000) 그러나, 이러한 측정 방법은 상대적으로 기술적, 경제적 및 시ㆍ공간적인 제약에 의해 광범위한 지역에 대한 이산화질소 오염 현상을 규명하기 어렵다. 그러나, 분자확산에 기초하여 대기 중의 이산화질소만을 선택적으로 채취하는 passive sampler법은 전원 및 기타장비, 기술 등이 필요치 않아 광범위한 지역에 대한 동시 측정의 목적으로 최근 관심이 증대하고 있다.(UNEP/WHO, 1994) (중략)

• Journal of Korean Society for Atmospheric Environment
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• v.16 no.5
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• pp.453-467
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• 2000

The aim of this research is to collect and characterize fine particles (FPM:$\leq$2.5${\mu}{\textrm}{m}$) and coarse particles (CPM: 2.5~10${\mu}{\textrm}{m}$) using a low volume air sampler provided by the IAEA, at urban (Taejon) and rural area(Wonju) for a period of about two years(April 1996 to May 1998) and to promote a use of nuclear analytical techniques for air pollution studies. For the collection of airborne particulate matter (PM(sub)10), the Gent stacked filter unit sampler and polycarbonate membrane filters were employed. The concentration of trace elements in collected APM samples were determined byu instrumental Neutron Activation Analysis. For validation of the analytical data, internal quality control were implemented by using both the comparison of the analytical results of standard reference materials(NIST SRM 1648) and interlaboratory comparison for proficiency test (NAT-3). The standard uncertainty was less than 15% and Z-score of two samples were within $\pm$1. The monitoring of (PM(sub)10) mass concentration and elemental concentrations were carried out weekly. The average mass concentration of (PM(sub)10) in urban and rural areas were 59.2$\pm$36.5$\mu\textrm{g}$/㎥ and 41.4$\pm$23.7$\mu\textrm{g}$/㎥, respectively. To investigate the emission source, the enrichment factors were calculated for the fine and coarse particle fractions at two sites, respectively and these values were classified for anthropogenic and soil origin elements.

• Journal of Environmental Science International
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• v.23 no.12
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• pp.1963-1970
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• 2014

Ambient particulate matters($PM_{10}$ and $PM_{2.5}$) were investigated at GNTECH university in Jinju city. Samples were collected using a dichotomous sampler(series 240, Andersen Corp.) and a TEOM(Tapered Element Oscillating Microbalance) monitor period from November 2012 to October 2013. For the dichotomous sampler measurements, daily 24-h integrated $PM_{2.5}$ and $PM_{10-2.5}$ ambient air samples were collected at a total flow rate of 16.7 L /min. For the TEOM monitor measurements, daily 1-h integrated $PM_{10}$ ambient air samples were collected at a flow rate of 16.7 L /min. The annual average concentrations of $PM_{10-2.5}$ and $PM_{2.5}$ by a dichotomous sampler were $10.0{\pm}6.1{\mu}g/m^3$ and $22.6{\pm}9.3{\mu}g/m^3$, respectively. And $PM_{10}$ concentration by dichotomous sampler were similar to TEOM monitor by $32.7{\pm}12.9{\mu}g/m^3$ and $31.7{\pm}11.3{\mu}g/m^3$, respectively. And good correlation ($R^2=0.964$) between the two methods was observed. The annual average of $PM_{2.5}/PM_{10}$ ratio was $0.70{\pm}0.12$.

• Journal of Environmental Science International
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• v.2 no.3
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• pp.201-206
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• 1993

The concentration of Total Suspended Particulates(T.S.P), size distribution of suspended particulates, and soluble anions of T.S.P in atmosphere of industrial region in Busan were investigated. T.S.P was measured by High-Volume Air Sampler and particle size distribution was measured by Anderson Air Sampler. We analyzed the chemical component of the T.S.P by ion Chromatography and measure4 the shape and size of T.S.P by Scanning Electron Micrography The small size of T.S.P mainly exist in industrial region, but the large size of T.S.P mainly exist in residentail area.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.05b
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• pp.337-338
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• 2003

대도시의 대기질은 1960년대 이후 지속되어온 국토개발과 성장위주의 경제모델이 각 도시 지형적 특성을 고려하지 못한 채 일률적으로 적용되면서 점차 심화되어 가고 있는 실정이다. 특히 1990년대 이후 연료정책 등 가시적인 효과를 거두고 있는 황산화물(SOx)도 도시권의 일부 지역에서는 인구유입에 따른 주택건설, 산업시설과 교통시설의 확충 등으로 절대량에 있어서 점차 증가추세를 나타내고 있다. 이러한 대도시에서의 대기질 현상을 규명할 수 있는 가장 객관적인 방법은 자동측정망의 활용이라 할 수 있으나, 수도권을 제외한 대도시에서의 대기측정망 수는 운영비용, 지역면적 및 인구밀도 등을 고려 할 때 현실적으로 부족한 실정이다. (중략)

• Journal of Korean Society for Atmospheric Environment
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• v.8 no.3
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• pp.198-203
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• 1992

Theoretical predictions of the atmospheric equilibrium involving $HNO_3, NH_3 and NH_4NO_3$ were compared with atmospheric measurements of particulate nitrate$(NO_3^-)$, $HNO_3$ and $NH_3$ concentration by triple filter pack sampler and Andersen air sampler in Seoul from 8th to 11th Oct 1991. The measured $HNO_3-NH_3$ concentration product K was higher than equilibrium costant Kc calculated from thermodynamic data of $HN_4NO_{3(s)} -HNO_{3(g)} -NH_{3(g)}$. The cause of K is greater than Kc was the result of air pollution, partcicularly anthropogenic $NH_3$.

• Proceedings of the Korean Environmental Health Society Conference
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• 2003.06a
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• pp.89-93
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• 2003

Daily average concentrations of fine particulates have been measured simultaneously in Seoul and Asan area by using PM minivolTM portable air sampler(Air Metrics, U.S.A) from September 2001 to August 2002. The sampler were analyzed by ICP-OES(inductively coupled plasma optical emission spectrometry, optima 3000DV, Perkin Elmor) to determine the fine particulate concentrations of metallic elements(As, Mn. Ni, Fe, Cr, Cu, Cd, Pb, Zn, Si). The concentration of PM$\sub$2.5/ showed a high trend in the Seoul area. Zn showed a similar distribution ratio for the fine particle in both Seoul and Asan. Mn and Fe, Cr, Cd are highly correlated in the Seoul and Asan area(P<0.05).

• Proceedings of the Korean Environmental Health Society Conference
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• 2002.04a
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• pp.3-5
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• 2002

A measurement of indoor microorganism using Reuter Centrifugal Air Sampler(RCS) was undertaken during October 1991-February 1999 and 6-Stage Cascade Air Sampler was undertaken during May 2001-June 2001 in Seoul. The results were as follows : 1. The average of total microorganism collected on the agar strip GK-A media were, in the order, subway station, hospital, underground shopping center, department store, book store, theater, sports facility, educational institution, office building in sites. 2. The average of staphylcocci collected on the agar strip GK-S media, in the order, were subway station, underground shopping center, hospital and department store, department store, theater, office building, sports facility and educational institution in sites. 3. The average of fungus collected on the agar strip GK-HS media, in the order, were Underground hospital, shopping center, theater, subway station, department store, book store, sports facility, educational institution, and office building in sites

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.04a
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• pp.123-124
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• 2000

오존($O_3$)은 이산화질소, 일산화탄소, 휘발성유기화합물 둥을 포함하는 다양한 물질과 광화학반응에 의하여 생성되는 2차적인 오염물질로 사람과 식물에 영향을 미치고 있는 중요한 오염물질로 알려지고 있으며, 국내에서는 이와 관련하여 오존예보제, 경보제 둥을 운영하여 오존에 의한 피해 영향을 줄이고자 노력하고 있다. 현재 오존을 측정할 수 있는 방법은 환경오염공정시험방법과 정부에서 운영하고 있는 대기오염 자동측정망의 오존 측정방법인 자외선광도법(Ultra Violate Photometric Method)으로 구분되어 지고 있으나, 자동측정장비는 매우 고가의 장비이며, 관리를 위하여 전문적인 지식이 요구되고 있고, 측정소의 개수가 매우 부족한 실정이기 때문에 대기중 오존농도의 지역적인 자료와, 실내공기 측정, 그리고 공간적인 분포 해석을 위해서는 다른 측정방법이 요구된다고 하겠다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.11a
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• pp.441-442
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• 2000

오존은 질소산화물, 일산화탄소 및 휘발성 유기화학물질 등의 광화학반응에 의해 생성되는 2차 오염물질이다(Haagen-Smit and Fox, 1953). 오존은 낮은 농도에서도 인체 및 식물에게 영향을 미치는 것으로 알려져 있다. 우리나라에서도 오존의 대기환경기준을 8시간 평균 0.06ppm, 1시간 평균 0.10ppm으로 낮추고, 오존예보제ㆍ경보제 등을 운영하여 오존에 의한 영향을 줄이고자 노력하고 있다. 그러나 서울과 같은 도시 밀집지역은 자동차의 밀집과 대형건축물의 증가, 기류 정체로 오염물질의 확산이 어렵고 도심지 내 열섬(heat island)현상으로 대기온도가 증가하여 오존생성에 유리한 조건을 형성함으로 인해 연평균 오염도가 1990년 이후 꾸준히 증가하고 있는 추세이다. (중략)