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한국환경분석학회> 환경분석과 독성보건> 수막재배시설 실내공기 중 라돈 농도 특성에 관한 연구

KCI등재

수막재배시설 실내공기 중 라돈 농도 특성에 관한 연구

A Study on the Characteristics of Indoor Radon Concentration in Water Curtain Cultivation Facilities

김상철 ( Sang-cheol Kim ) , 박찬주 ( Chan-ju Park ) , 최재혁 ( Jae-hyuk Choi ) , 서민아 ( Min-a Seo ) , 엄진균 ( Jin-gyun Eom ) , 박미선 ( Mi-sun Park )
  • : 한국환경분석학회
  • : 환경분석과 독성보건 24권2호
  • : 연속간행물
  • : 2021년 06월
  • : 84-90(7pages)
환경분석과 독성보건

DOI


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2. 재료 및 방법
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The aim of this study was to investigate indoor radon concentration in the water curtain cultivation facilities located in the rural area of Sejong city during the winter season. The bedrock of the southern part of the city is mainly composed of granite rocks, which have been reported to retain higher radon content than sedimentary and metamorphic rocks. The measured indoor radon concentrations were very high in all the facilities partially exceeding the recommended values provided in the 「Indoor Air Quality Control Act」 guidelines. Furthermore, we observed that operation of equipment to maintain stable indoor temperatures resulted in diurnal variations in radon concentration. Based on the results, we concluded that suitable measures such as changing the time at which work starts or ventilating in advance could help reduce the duration of exposure to radon.

UCI(KEPA)

간행물정보

  • : 공학분야  > 환경공학
  • : KCI등재
  • :
  • : 계간
  • : 2672-0175
  • : 2672-1139
  • : 학술지
  • : 연속간행물
  • : 2019-2021
  • : 64


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KCI등재

1척추동물군별 Bisphenol A의 독성 영향 비교 분석: 2015-2021년 연구를 중심으로

저자 : 안유민 ( You Min Ahn ) , 김동환 ( Dong Hwan Kim ) , 조수남 ( Su Nam Cho )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 3호 발행 연도 : 2021 페이지 : pp. 107-126 (20 pages)

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The toxic effects of Bisphenol A (BPA) have been studied in individual experimental animals under different conditions. However, without a systematic approach, it is difficult to compare and analyse the results because of differences in doses (concentration), dosing periods (exposure), research methods, and the effects of BPA. We systematically compared and analysed recent research (between 2015 and 2021) that examined the effects of BPA on individual experimental vertebrates (fishes, amphibians, birds, and mammals). We divided the experiments into two categories: experiments on fish and amphibians by indirect administration, and experiments on birds and mammals by direct administration. The deleterious effects of exposure to BPA were classified into two types: morphological and anatomical effects, and physiological and neurocognitive effects. Experimental animals that had less weight, were younger, and were farther away from humans in evolutionary relationships, showed toxic effects even if they were exposed to low concentrations of BPA in the short term. Long-term administration of a small amount of BPA and short-term administration of a large amount of BPA also showed severe toxic effects. When the parents absorbed BPA during puberty, just before fertilisation, or during pregnancy, toxic effects were transmitted from dosed parents to offspring. With increasing amounts of BPA production and waste, there is a growing possibility that animals in various ecosystems will be exposed to BPA. Therefore, it is necessary to identify the harmful effects of BPA on various animals and the conditions under which it affects them. We hope that the results reported here will contribute to the development of standardized study designs for BPA research, to ensure that results can be more readily compared.

KCI등재

2Mass balance법에 의한 농약 표준물질의 순도 분석

저자 : 김승환 ( Seung-hwan Kim ) , 김병주 ( Byungjoo Kim ) , 주광국 ( Kwangguk Joo ) , 지수언 ( Su-eon Ji ) , 정대원 ( Dae-won Chung ) , 이석기 ( Seok-ki Lee )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 3호 발행 연도 : 2021 페이지 : pp. 127-132 (6 pages)

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Imazamox, a widely used herbicide, is currently managed by the Pesticide MRLs and Positive List System of the Ministry of Food and Drug Safety, and the development of reliable standard materials for analysis is urgently required. To confirm the reliability of the mass balance method, we measured the purity of the imazamox reference material (RM) certified by an RM producer accredited with ISO Guide 34 and estimated measurement uncertainty. According to this method, the content of structurally similar organic impurities was measured using high-performance liquid chromatographic coupled with ultraviolet (HPLC-UV), and the moisture, volatile impurities, and non-volatile impurities were quantitatively analyzed using a thermogravimetric analyzer (TGA). Purity and measurement uncertainty were calculated based on analysis of the HPLC-UV and TGA results obtained, and the validity of these values was confirmed by comparing with the values provided in the RM certificate.

KCI등재

3부산 공단지역 PM-10, PM-2.5 중 유해중금속 농도분포 및 위해성 평가 - 사상공단을 중심으로 -

저자 : 최성화 ( Seong-hwa Choi ) , 최성우 ( Seong-woo Choi ) , 김동영 ( Dong-yeong Kim ) , 차영욱 ( Young-wook Cha ) , 박승우 ( Seung-woo Park ) , 이서이 ( Seo-i Lee ) , 유은철 ( Eun-chulyoo )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 3호 발행 연도 : 2021 페이지 : pp. 133-148 (16 pages)

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We investigated the distribution of hazardous heavy metals (As, Cr6+, Ni, Cd, Pb, and Mn) and estimated the health risk related to the heavy metals in fine dust (PM-10 and PM-2.5) of Sasang industrial complex, Busan, Korea. The concentration of fine dust in the industrial complex was 1.2 times higher than in a residential area, while harmful heavy metals showed a difference of at least 1.3 times (Cd) and up to 6.5 times (Ni). The concentration of fine dust and carcinogenic heavy metals in the industrial complex increased significantly compared to the residential area in spring (March to May) and winter (December to February) months. A risk assessment was performed using Monte-Carlo simulations containing a four-step procedure. During hazard identification, As, Cr6+ Ni, Cd, and Pb were categorized as human carcinogens and probable human carcinogens and evaluated for their levels of excess cancer risk. For concentrations of over 90% Cr6+and As, the excess cancer risk was over 10-5 (1 person per 100,000). The non-cancer hazard index of As, Cr6+, Cd, and Mn was below the limit value of 1.

KCI등재

4영국의 시험 · 검사기관 정도관리 제도 중 현장평가 고찰

저자 : 황종연 ( Jong Yeon Hwang ) , 이혜리 ( Hyeri Lee ) , 고상호 ( Sang Ho Go ) , 전수아 ( Sooa Jeon ) , 김지혜 ( Jeehye Kim ) , 이진주 ( Jin Joo Lee ) , 박창희 ( Park Chang Hee ) , 신선경 ( Sun-kyung Shin ) , 허유정 ( Ujeong Hur )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 3호 발행 연도 : 2021 페이지 : pp. 149-152 (4 pages)

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With reference to the quality standard, ISO/IEC 17025, we conducted on-site assessments of and comparisons between test and inspection institutions in Korea and the UK. The diversity of evaluation methods used 'in the field' within the UK is greater than the range in Korea. Nevertheless, when assessing on-site processes in both countries, it is clear that many aspects of the quality assessment, including the roles of the evaluation committee members, the preparation of documents for evaluation, the opening meeting, the evaluation process in the field, and the closing meeting, occur in a similar order in the UK as in Korea. However, one important difference between the on-site evaluations in Korea and the UK was noted; particularly, in the UK, the level of excellence achieved by the evaluated institution is highlighted during the closing meeting.

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KCI등재

1전국 연안어장 퇴적물 및 양식생물 중 브롬화난연제(HBCDDs 및 PBDEs) 분포 및 축적특성

저자 : 손지영 ( Ji-young Son ) , 성재현 ( Jae-hyun Seong ) , 임동훈 ( Dong-Hoon Im ) , 김상수 ( Sang-soo Kim ) , 이인석 ( In-seok Lee ) , 최민규 ( Minkyu Choi )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 41-50 (10 pages)

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Marine sediments and biota collected from farming areas of Korean coasts were studied to detect the concentrations of brominated flame retardants(BFRs), hexabromocyclododecane(HBCDD) and polybrominated diphenylethers(PBDEs), and to investigate on their distributions and accumulation patterns. The concentrations of HBCDDs in marine sediments and biota were 15-30 times higher than those of PBDEs. However, the concentrations of HBCDDs in marine sediments were not correlated with those of PBDEs(p > 0.05), and the ratio of HBCDDs to PBDEs in marine sediments were higher in farming areas. The major isomer of HBCDDs in marine sediments was γ-HBCDD(72% of the total HBCDDs), similar to those in technical mixtures(80%) and in expanded polystyrene buoy(70%) for aquaculture. In marine biota, α-HBCDD constituted the major percentage(53%) to the total HBCDDs detected. The major congeners of PBDEs were 183, 47, 99, and 153 in marine sediments and 47, 49, 99, and 154 in marine biota, associated with commercial penta- and octa-BDE mixtures. In this study, according to estimation of the biota-sediment accumulation factor, PBDEs showed a higher bioaccumulation potential compared to HBCDDs, and BDE-47 showed the highest bioaccumulation potential among BFRs.

KCI등재

2LC-HRMS를 이용한 송사리 내 의약품 농축 및 생체변환 연구

저자 : 차현전 ( Hyeonjeon Cha ) , 전준호 ( Junho Jeon )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 51-61 (11 pages)

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The occurrence of pharmaceuticals in the aquatic environment has been increasing steadily owing to the increasing use of pharmaceuticals in our daily life. This results in increasing challenges of environmental health risk as pharmaceuticals in the surface water can be accumulated and transformed in aquatic organisms. The purpose of this study was to predict the bioconcentration and biotransformation of several pharmaceuticals in Japanese medaka (Oryzias latipes) using a 96 h exposure test. Based on an investigation of the most frequently detected pharmaceuticals in the surface waters in South Korea, 11 target compounds were selected including atenolol, caffeine, carbamazepine, diclofenac, fluoxetine, irbesartan, losartan, mefenamic acid, metoprolol, naproxen, and venlafaxine. A bioconcentration factor of 1.9, 31.3, and 10.7 was expected in fish owing to the accumulation of carbamazepine, fluoxetine, and mefenamic acid, respectively. A total of 12 biotransformation products (BTPs) were tentatively identified via oxidation, hydroxylation, dealkylation, and demethylation reactions. In summary, it is expected that these BTPs represented by molecular structures derived from their parent compounds can be utilized to evaluate the change in toxicity of BTPs compared to that of the parent compounds.

KCI등재

3탄산염 혹은 황화물 풍부 조건의 하수 처리 과정을 모사한 환경에서 산화아연 (ZnO) 나노입자의 구조 변환 연구

저자 : 이서연 ( Seoyeon Lee ) , 한준호 ( Junho Han ) , 노희명 ( Hee-Myong Ro )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 75-83 (9 pages)

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Development of nanotechnology has led to the extensive application of metal-oxide nanoparticles (NPs) in industry, and it cause toxicity and a risk to ecosystems and human health through unidentified pathways. Zinc oxide (ZnO) is one of the most versatile NPs, which causes severe direct and indirect toxicity upon transformation by environmental fluctuations. In this study, the transformation of ZnO NPs was examined in artificial sewage, wherein the sewage treatment process was simulated using either carbonate or sulfide, under oxic and anoxic conditions. Dynamic light scattering, transmission electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) were employed to identify the morphology and structure of the NPs. The results indicate that a decreasing in pH and ionic strength causes the aggregation of ZnO NPs, and the carbonate-rich condition leads to the growth of a spherical crystal into a rectangle form, without changing the crystal structure. XRD and XPS analysis revealed that ZnO NPs transform into the smaller ZnS NPs, sphalerite, under sulfide-rich and anoxic conditions. This implies that sewage treatment would cause the transformation of ZnO NPs into ZnS NPs, which have higher colloidal stability and dissolution rate; therefore, the transformation of NPs should be carefully examined and assessed for a better understanding and safe application.

KCI등재

4수막재배시설 실내공기 중 라돈 농도 특성에 관한 연구

저자 : 김상철 ( Sang-cheol Kim ) , 박찬주 ( Chan-ju Park ) , 최재혁 ( Jae-hyuk Choi ) , 서민아 ( Min-a Seo ) , 엄진균 ( Jin-gyun Eom ) , 박미선 ( Mi-sun Park )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 84-90 (7 pages)

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The aim of this study was to investigate indoor radon concentration in the water curtain cultivation facilities located in the rural area of Sejong city during the winter season. The bedrock of the southern part of the city is mainly composed of granite rocks, which have been reported to retain higher radon content than sedimentary and metamorphic rocks. The measured indoor radon concentrations were very high in all the facilities partially exceeding the recommended values provided in the 「Indoor Air Quality Control Act」 guidelines. Furthermore, we observed that operation of equipment to maintain stable indoor temperatures resulted in diurnal variations in radon concentration. Based on the results, we concluded that suitable measures such as changing the time at which work starts or ventilating in advance could help reduce the duration of exposure to radon.

KCI등재

5Delay Column과 On-line SPE LC-MS/MS 시스템을 이용한 수중에 과불화화합물의 분석

저자 : 한개희 ( Gaehee Han ) , 강현우 ( Hyunwoo Kang ) , 박정자 ( Jeongja Park ) , 이선희 ( Seonhui Lee )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 91-99 (9 pages)

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To ensure the safety of the citizens of Daegu with respect to drinking water sources, we continuously monitored trace pollutants in the Nakdong River basin. Perfluorinated compounds (PFCs) had been detected in the Nakdong River previously; thus, further low-concentration detection is required. We developed an LC-MS/MS analysis method using the online SPE approach for fast and simple detection of low-concentration PFCs. In this process, a delay column was used to assess PFC contamination. As a result, quality control analysis of eight standard PFCs using this method showed strong correlations, with correlation coefficients of 0.991 and more, and the limit of quantification was 0.5 to 1.7 ng/L. The recovery rates of PFCs from samples ranged from 75.3% ± 1.23% to 118.0% ± 1.39%, suggesting robustness of this method. Analyses of PFC at seven sampling points in the Nakdong River basin showed high PFC concentrations at the point where effluent from a sewage treatment plant was introduced. PFHxS, PFOA, and PFOS values, which were used as drinking water monitoring standards of treated water at the Daegu advanced water treatment plant, did not exceed the monitoring standards. Therefore, these results demonstrate that the established method is appropriate as an analytical tool for assessing low-concentration PFCs in drinking water.

KCI등재

6디누더(Denuder)장착 여부에 따른 초미세먼지(PM2.5) 중 암모늄 과대 평가와 이온 밸런스에 관한 연구

저자 : 엄정훈 ( Jung-Hoon Uhm ) , 박세영 ( Se-young Park ) , 권승미 ( Seung-Mi Kwon ) , 신진호 ( Jin-ho Shin ) , 조석주 ( Seog-Ju Cho ) , 김현욱 ( Hyunook Kim )

발행기관 : 한국환경분석학회 간행물 : 환경분석과 독성보건 24권 2호 발행 연도 : 2021 페이지 : pp. 100-106 (7 pages)

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When collecting air samples for analyzing the ionic components of fine dust, a (+) error may occur because gaseous precursors react with each other on the filter surface to form particles. To remove NO2, SO2, HNO3, HNO2, and NH3, which may cause these errors, a denuder must be installed in front of the sampling port. However, with the extensive use of sequential samplers that automatically replaces filters once every 24 h, the use of denuders is decreasing. In this study, the effect of denuder installation was analyzed by operating a sampler simultaneously with and without a denuder on 279 samples collected from Gwangjin, Seoul. It was confirmed that the NH4+ concentration of the sampler equipped with a denuder was 13.4%~26.9% less than that of the sampler without the denuder when the fine particle concentration was less than 30 μg/㎥. Further, less nitrate and sulfate were detected when the denuder was installed. However, their levels were not as low as that of NH4+. This is likely because nitrate and sulfate are collected in a form bound to water soluble organic carbon particles and then eluted to add anions to lower the ion balance. In addition, when the denuder was not installed, the ion balance value was higher than that with the denuder installed, which was attributed to the partial neutralization of negative ions by gaseous ammonia. Therefore, to determine whether an error occurs during the experiment, the ion balance should be carefully maintained.

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