• Title/Summary/Keyword: 아황산가스

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The Present Condition of Ambient Air Quality Monitoring and Problems with which Our Country is Confronted (환경 대기질 측정현황 및 과제)

  • 김민영
    • Journal of Environmental Health Sciences
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    • v.19 no.1
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    • pp.1-12
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    • 1993
  • I. 서론 : 공해방지법이 1963년 11월 15일에 최초로 제장 공포된 이후 14년이 지난 1977년 환경보전법으로 개정되어 다음해 7월부터 본법을 시행하게 되었는바 이때 환경기준에 관한 규정이 최초로 설정되었다. 환경기준의 설정목적은 쾌적한 환경을 보전하고 환경오염으로부터 사람의 건강을 보호하기 위한 것으로서, 최초설정 당시에는 아황산가스, 일산화가스, 질소산화물, 부유분진, 옥시단트 등 5개 항목이었으나, 시행령에서 구체적 기준을 규정한 것은 아황산가스의 1개 항목으로서 장기기준(0.05ppm이하), 단기기준(0.15ppm이하)의 2가지로 구분설정하였다. 동시에 보사부장관과 시.도지사는 전국 혹은 관할 행정구역내에 측정망을 설치하여 환경오염도를 상시 측정토록 규정하고 있다. (생략)

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황사 대비 건강관리

  • KOREA ASSOCIATION OF HEALTH PROMOTION
    • 건강소식
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    • v.29 no.3 s.316
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    • pp.14-15
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    • 2005
  • 매년 봄이면 찾아오는 불청객 '황사'. 특히 최근 황사에는 아황산가스나 석영(실리콘), 카드뮴, 납, 알루미늄, 구리 등은 물론 다이옥신까지 묻어오는 것으로 보고되고 있어 철저한 건강관리가 필요하다.

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Effect of Sulfur Dioxide and Hydrogen Fluoride on Rice Plant Growth in Industrial Estate (공업단지 주변에서의 아황산가스 및 불화수소가 수도 생육에 미치는 영향)

  • Wan Cheol, Park;Kwang-Ho Kim;Ki Joon, Kim
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.36 no.1
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    • pp.17-21
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    • 1991
  • The study was performed to investigate the effects of gaseous emission of sulfur dioxide and hydrogen fluoride on the growth of rice plant under stressed field conditions. This study is specifically dealt with multiple effects of sulfur dioxide and hydrogen fluoride on various plant growth indicators such as leaf damage, weight of grain, panicles per hill, spikelets per panicle and percent fertility. It appears that there is a good correlation between ambient concentrations of sulfur oxides and sulfur contents found in leaves with an average correlation coefficient of 0.868 within a 1% significance level. A better multiple correlation was found between percent leaf damage and sulfur and fluorine contents found in leaf with a significance of 1% level. The correlation coefficient ranges from 0.807 to 0.978 with an average being 0.922. An evaluation of data observed has demonstrated that both panicles per hill and percent fertility are significantly affected by air pollutants. As expected, hydrogen fluorides have more effects than sulfur oxides. It is, however, interesting to note that spikelets per panicle has slightly been affected while no indication of effects on l000-grain weight has been observed. This may lead to a conclusion that a reduction in yield of rice under polluted field conditions may have more been caused by the diminution panicles per hill and percent fertility rather than by the diminution of spikelets per panicle and grain weight.

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Analysis of Potential on Measurement of SO2 and NO2 using Radiative Transfer Model and Hyperspectral Sensor (복사전달모델과 초분광센서를 이용한 아황산가스와 이산화질소의 농도 측정 가능성 분석)

  • Shin, Jung-il;Kim, Ik-Jae;Choi, Min-Jae;Lim, Seong-Ha
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.6
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    • pp.658-663
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    • 2018
  • Current measuring methods for air quality are based on ground measurement networks and satellite data. New methods of collecting evidence with advanced sensors are needed because current methods have limitations in collecting evidence for the illegal emission of air pollutants at narrow areas or specific sites. This study analyzed the possibility of using an ultraviolet hyperspectral sensor to measure the concentration of nitrogen dioxide and sulfur dioxide. Two types of spectra were used: simulated spectra for gases with various concentrations using a radiative transfer model and observed spectra for each gas for a concentration. To understand the possibility of using a hyperspectral sensor, the differences between the simulated spectra and the observed spectra were analyzed, and the variation of simulated spectra were then analyzed according to the concentration. The results showed good agreement between observed spectra and simulated spectra. In addition, the absorption depth at specific wavelengths in the simulated spectra had a very strong correlation with the gas concentration. The gas concentration could be estimated using the hyperspectral sensor. In the future, validation would be needed to estimate the gas concentration through observations of various concentrations of gases using a hyperspectral sensor.

Effect of of Sulfur dioxide gas on Soybean Plant (대두(大豆)에 대(對)한 아황산가스의 영향(影響))

  • Kim, B.Y.;Han, K.H.
    • Korean Journal of Soil Science and Fertilizer
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    • v.11 no.2
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    • pp.105-112
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    • 1979
  • A study was carried out to examine the effects of sulfur dioxide gas on soybean plants; at two concentrations(0.2mg/l and 0.5mg/l) and in different fumigation periods, The grain yield of soybeans, sulfur and chlorophyll contents in leaves, and ratios of destroyed leaf were investigated, 1) At the concentration of $SO_2$ 0.5mg/l, a) The yield decrease were 52% and 76.4% at 5 minutes and one houre fumigation period respectively, b) The sulfur contents in leaves were positively correlated with fumigation period and yield decrease, however the water soluble sulfur was superior than the total sulfur in correlation coefficient. 2) At the concentration of $SO_2$ 0.2mg/l; a) The most severe destruction of leaves were observed at noon exposure (10:00-11:00 O'clock) and no visible damage was observed at night exposure (22:00-23:00) b) The sulfur contents in leaves and stems were the highest at noon exposure and the lowest at evening exposure (18:00-19:00 O'clock) chlorophyll contents were the highest at night exposure but, the lowest at noon exposure, c) The ratio of destroyed leaf was positively correlated with the sulfur content of leaves, but negatively correlated with chlorophyll contents. d) Absorbance spectra of chlorophyll in the chlorolast were greatly decreased at noon exposure but slightly decreased at night exposure. The decrease of absorbance spectra was mainly at $456m{\mu}$ and $663m{\mu}$.

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