3B5)포천지역 대기중 PM10의 화학적특성 및 오염원의 기여도 추정에 관한 연구

박태술,김동술 한국대기환경학회 2003 한국대기환경학회 학술대회논문집 Vol.- No.-

실내외 호흡성분진중 금속성분에 관한 조사연구

박태술 대진대학교 1994 大眞論叢 Vol.2 No.-

The purpose of this study was to measure indoor and outdoor concentrations of metal elements in a office building in the Seoul City. Fine (<2.5 μm) and coarse (>25 μm) particle samples were collected by PM-10 dichotomous sampler and PM-10 high volume sampler at medical school office building of Hanyang University from February to Octerber, 1993. Respirable particulate sampling was taken place both inside and outside the office building. The mean concentrations of indoor and outdoor respirable particulates were 56.6 μg/㎥ and 89.2 μg/㎥, respectively. The result of PCA of outdoor fine particles indicated that the three factors, which will be discussed in this paper, responsible 89.6% of total variance at daytime and 84.6% at nighttime. And major contribution to fine particles seemed to be soil dust, oil combustion, automotive emission, refuse burning and industrial activities, respectively

대기중 입자상물질의 입경분포에 관한 연구

박태술 漢陽大學校 環境 및 産業醫學硏究所 1998 環境과 産業醫學 Vol.7 No.1

The Cascade impactor was introduced in 1945 to measure the size distribution of airborne droplets. The relative with which information could be obtained airborne particle sizes with a cascade impactor soon led to its use for airborne dusts. A cascade impactor is a multistage impaction device used to separate airborne particles into aerodynamic size classes.

도로변의 대기오염농도 조사에 관한 연구

박태술 漢陽大學校 環境 및 産業醫學硏究所 1997 環境과 産業醫學 Vol.6 No.1

We considered that characteristics of Air pollutants (TSP, SO2, and Metals) concentration level condrelation of the sampling sites(Daejin univ. andits suburbsof a road). Concentrations of SO2, NO2, TSP and metals were measured in the selected sampling site during April 7-26, 1995. 1. The means of SO2 and NO2 level were very low in comparison to other Urvan's level and Simila to other Cantry's Background levels. 2. The means of TSP level were 98.55 ㎍/㎥ Daejin univ., and 120.06 ㎍/㎥ its suburbs of a road. 3. The level of SO2, was highly correlation to most of NO2:especially correlation coefficient(r) was 0.815.

실내외 다환방향족탄화수소(PAHs)의 농도조사에 관한 연구

박태술,김윤신,심규호,전준민 대진대학교 1994 大眞論叢 Vol.2 No.-

The purpose of this study was to measure indoor and outdoor concentrations of polycyclic aromatic hydrocarbons (PAHs) in office building in Seoul City. Fine (<2.5μm) and coarse (25>μm) particle samples were collected by PM-10 dichotomous sampler from January to Octerber, 1993 Respirable particulates sampling was taken place both inside and outside the office building The samples collected for 12-hour sampling schedule from 8 AM to 8 PM and from 8 PM to 8 AM were analyzed for PAHs. High performance liquid chromatography (HPLC) with UV detector (254nm) was used to determine twelve compounds of PAHs. The mean concentrations of indoor and outdoor respirable particulates were 768 μg/㎥ and 1099 μg/㎥. The mean concentrations of acenaphthylene at indoor and outdoor site were significantly higher than any other compounds, respectively. The mean concentrations of PAHs during daytime were higher than those level of where the mean concentrations of fine particle of PAHs were higher than those level of coarse particles. The mean outdoor concentrations of NAP, ACL, PHE, PY, BAA, BKF, BAP were highest in January, while the mean outdoor concentrations of AN, FLUR, CHRY, BBF, DAHA were highest in July and August

NO₂의 실내외 농도 및 개인 노출량에 관한 조사연구

김윤신,박태술 漢陽大學校 環境 및 産業醫學硏究所 1997 環境과 産業醫學 Vol.6 No.1

A pilot study on indoor air concentrations of nitrogen dioxide(NO₂) was undertaken during May 20-25, 1996 in the Pochon area, Korea. Indoor and outdoor data on NO₂concentrations were obtained for 32 indoor spaces. Personal exposure to NO₂for 28 persons in different occupation was also investigated. Highest levels of NO₂ concentrations were found in policemen for personal exposure level, kitchen for indoor level, and roadside for outdoor level, and roadside for outdoor level, respectively. Personal exposure to NO₂levels varies from 0.011ppm to 0.018ppm.

공단지역 유해대기오염물질에 대한 인체위해도 평가에 관한 연구

박태술,전준민,김윤신,최원욱 漢陽大學校 環境 및 産業醫學硏究所 1998 環境과 産業醫學 Vol.7 No.1

This study estimated health risk of hazardous air pollutants(HAP) in probability analysis for Yeochon industrial complex. Through a technique known as Monte-Carlo simulation, Risk analysis program is Crystal Ball (version 4.0) that forecasts the entire range of results possible for a given situation and the likelihood of any specific event taking place. Heavy metals had been collected from May, 1996 to March, 1997 by PM-10 High-Volume Air Sampler and analyzed by ICP-MS (Inductively Coupled Plasma-Mass Spectrometry). VOCs had been collected from April, 1996 to March, 1997 by SUMMA Air Sampling Container and analyzed by GC (Gas Chromatograph). The risk assessment was performed 4-step process (hazard identification, exposure assessment, dose-response assessment, risk characterization) In the hazard identification process, As Cr+6 and Benzene were categorized as human carcinogen (Group A). 1,3-Butadiene, Be, Cd and Pb were chosen as probable human carcinogenic (Group B). Cu, Mn, Zn, Toluene, m-xylene, o-xylene and p-xylene were grouped as not classifiable as to human carcinogen (Group D). For not classification, Ba, V and Styrene were selected. In the environmental exposure assessment, heavy metals and VoCs were observed in the following oder : (heavy metals) spring > winter > fall > summer, (VOCs) spring > summer > fall > winter. probability density function(PDF) for HAP of 17 species showed Lognormal distribution type In risk characterization, 5th∼95th percentiles of cancer risk for male was 1.73×10-5∼9.47×10-4 and 5th∼95th percentiles of cancer risk of female was 1.96×10-5 ∼ 1.07×10-3. 5th∼95th percentiles of hazard index for male was 0.14 ∼ 0.3 and 5th∼95th percentiles of hazard index for male was 0.17 ∼ 0.38. For all receptors(male & female), cancer risk was higher than 10-5 and hazard index was less than 1. As a results of sensitivity analysis, cancer risk was influenced highly by 1,3-Butadiene(99%) and Benzene(70%), and hazard index was influenced highly by Ba(72%) and Mn(42%). As a results of the above study, We require hastily that through regulation and management for HAPs (especially, VOCs like 1,3-Butadiene and Benzene) in the Yeochon industrial area and development of accurate probability density function(PDF) for many parameters used to calculate health risk.

포천지역에서 측정한 PM10중 2차 생성입자에 관한 연구

박태술(Tae-Sool Park) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.4

The purpose of the study was characteristics of secondary pollutants of PM_(10) collected in pocheon between August 2002 and June 2003.<br/> The ambient concentrations of PM_(10) mass, 9 water-soluble anions and cations, and 13 bulk composition trace elements were determined from filter samples collected by PM_(10) high volume air sampler(UV-15H, Graseby-Andersen Co., USA).<br/> During this period average PM_(10) mass concentration was 83.8㎍/㎥(49.8㎍/㎥~111.6㎍/㎥) in Pocheon.<br/> Mechanism for transformation of secondary pollutants by soluble ion components is divided into two categories; NaNO₃ type by the reaction of sea salt and HNO₃ in the atmosphere, and nitrate salt or phosphate salt type such as (NH₄)₂SO₄, NH₄NaSO₄, and (NH₄)₂SO₄(2NH₄NO₃).

대기중 산성가스의 화학적 변화에 관한 연구

박태술(Tae-Sool Park) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.4

Pocheon is a basin geographically, and the diffusion of air pollutants is very difficult. Thus, it is essential to consider the characteristics of geographical and weather conditions before industrial complex and various air pollution sources are developed in the area. It is recommended that Environmental Impact Statements (EIS) must be carried out before any action is taken.<br/> Constantly occurring fog in the Pocheon area absorbs large amounts of acidic gases, and it transformed into the secondary pollutants such as the salts of sulfate and nitrate.<br/> Fog, which occurs very often in Pocheon area, was analyzed for its acid components. Conversion from the gaseous sulfur dioxide into sulfate ion is relatively high, 86~90% while 68~76% of NOx is converted into nitrate ion form.

우주항공의 신소재를 위한 New Austria Tunnel Method 수지합성에 대한 Fume silica의 영향

김기준,이주호,박태술,이주엽 한국유화학회 2014 한국응용과학기술학회지 Vol.31 No.4

NATM의 미세 구조는 SEM, FT-IR, 인장특성, 그리고 [NCO]/[OH]의 mole %, 입도분석에 의해 측정하였다. 친환경적인 NATM에 관한 관심이 고조됨에 따라 스테인레스 등의 금속코팅에 더욱더 중요한 무용제 도료의 발전을 이끈다. 우리는 스테인레스 스틸의 부식을 방지할 수 있는 NATM(New Austria Tunnel Method)의 수지를 합성하였다. 폴리우레탄과 에폭시로 합성한 혼성 수지는 일반적 NATM 수지와 도료와 비교하여 강도와 내구력이 매우 양호하다. 혼성수지는 폴리올, 에폭시, MDI, 실리콘 계면활성제, 촉매, 가교제, 충전제로 구성된다. 충전제인 fume silica는 경화속도를 가속시킬 뿐만 아니라 열적 장벽으로 물성이 우수함을 나타냈다. NATM 수지의 기계적 특성은 [NCO]/[OH]의 mole%와 fume silica가 증가함에 따라 강도가 증가하였다. 결론적으로 가교제와 fume silica가 함유된 혼성수지의 미세구조는 스테인레스 스틸같은 금속물질의 열경화코팅을 위한 좋은 물질이다. The microstructures of NATM were examined by SEM, FT-IR spectra, tensile properties, mole % of [NCO/OH], and particle size analyzer. Growing concerns in the environment-friendly industries have led to the development of solvent-free formulations that can be cured. We had synthesized NATM(New Austria Tunnel Method) resin having the ability to protect stainless steel against corrosion. Comparing with general NATM resin and coatings, this resin that synthesized with polyurethane and epoxy was highly stronger in intensity and longer durability. Hybrid resin was composed of polyols, MDI, epoxy, silicone surfactant, catalyst and crosslink agent, and fillers. Moreover, fillers such as fume silica not only accelerated the curing rate but also improved the physical property as thermal barriers. The rigid segments of synthetic resin in mechanical properties were due to fume silica and the increase the mole% of [NCO/OH] for corrosion protection. In conclusion, the hybrid resin microstructure with crosslink agent and fume silica are good material for thermosetting coating of metal substrates such as stainless steel.