• 제목/요약/키워드: Heavy Metal Contents

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과일통조림 중에 함유된 중금속의 함량변화 (Changes of Heavy Metal Contents of Commercial Canned Fruits)

  • 위성언;김순희
    • 한국식품영양학회지
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    • 제6권4호
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    • pp.276-280
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    • 1993
  • Analytic data on the content of Pb and Sn from twenty five samples of fruit canned In the open market is as follows. The content of Pb and Sn from twenty five samples of fruit canned In the open market was less than Korean laws of food hygiene. The content of Pb and Sn increased In the long time of self life. In comparison with fruit flesh and nectar, nectar showed a tendency to less content.

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보령 담수호 유역의 논토양 및 하천수질 특성 -비영농기간을 중심으로 (A Study on the Paddy Soil and Water Quality in Boryung Freshwater Reservoir Watershed-During the non-cropping season-)

  • 최진규;구자웅;손재권;한강완;조재영;김선주
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 1999년도 Proceedings of the 1999 Annual Conference The Korean Society of Agricutural Engineers
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    • pp.651-656
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    • 1999
  • This study was carried out to investigate the paddy soil and water quality in Boryung freshwater reservoir watershed during the non-cropping season. Soil pH of the Boryung freshwater reservoir watershed were 5.39∼5.78. Total-N and P contents were high by the accumulation of chemical fertilizer partly. Heavy metal content of paddy soils were natural background level. Water pH of the Boryung freshwater reservoir watershed ranged from 6.82 to 8.64. Total-N content affected by a livestock wastes and sewage water were the higher than that of others and total-P content showed below 0.1mg/L. Nitrate nitrogen contents was very high according to the influence a livestock waste and sewage water partly. Heavy metal contents of wateers were natural background level.

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Heavy Metals In The Nagdong Estuary

  • Lee, Soo-Hyung;Lee, Dong-Soo;Kim, Eun-Soo;Kwak, Hi-Sang;Lee, Kwang Woo
    • 한국해양학회지
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    • 제16권1호
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    • pp.24-30
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    • 1981
  • In order to investigate water pollution of heavy metals in the Nagdong Estuary, samples were collected five times from August 1978 to April 1979 every other month, and analyzed for Cd, Cu, Pb and Zn by atomic absorption spectrophotometry. The results showed no significant heavy metal pollution in most parts of the studied areas, except near the outfalls of the Sasang Industrial Complex. In general, the heavy metal contents were higher in the dry season than in the rainy season due to the dilution effect of river water flow. Distribution of heavy metals in the dissolved and the particulate fractions were also investigated.

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퍼머넌트 웨이브제의 중금속 함량에 관한 연구 (A Study on the Heavy Metal Content of Permanent Wave Products)

  • 유태순;장남순;정연
    • 한국패션뷰티학회지
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    • 제2권2호
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    • pp.93-100
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    • 2004
  • This study is to measure the heavy metal content of permanent wave products which on marketing correctly as estimating the extent of exposure by a hair permanent wave scientifically. We would like to prevent an affair from arising health obstruction as to the heavy metal who is using those and also show the basic data for proposing the new standard. The results were as follows.: in case of the average heavy metal content for a wave type thioglycol acid ingredient includes 1.61ppm(Pb), 0.03ppm(Cd), 0.05ppm(Ni), 0.27ppm(Mn), 0.82ppm(Cu) and those were recognized the significant gap between products all the heavy metals. In case of a cysteine acid ingredient includes 0.86ppm(Pb), 0.01ppm(Cd), 0.05ppm(Ni), 0.20ppm(Mn) and 0.66ppm(Cu) and those were recognized the significant gap between products except a nickel. Straight type of permanent wave reductant includes 2.11ppm(Pb), 0.01ppm(Cd), 0.27ppm(Ni), 0.66ppm(Mn), 2.53ppm(Cu) and those were recognized the significant gap between products all the heavy metals. Permanent wave reducing agent includes 1.43ppm(Pb), 0.01ppm(Cd), 0.09ppm(Ni), 0.66ppm(Mn), 0.75ppm(Cu) and those were approved the significant gap between products except a cadmium. Exposure level of the heavy metal contents per onetime permanent waving were 242.3ppm(Pb), 2.5ppm(Cd), 17.7ppm(Ni), 89.0ppm(Mn), 174.7ppm(Cu).

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한약재와 탕액(십전대보탕) 중 내분비계 장애물질로서의 개별 중금속 함량분석(II) (Monitoring Research for Heavy Metals as Endocrine Disruptors in Sibjeonaebotang and Its Ingredients Herbal Medicines(II))

  • 김진숙;황성원;김종문;마진열
    • 약학회지
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    • 제45권5호
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    • pp.448-454
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    • 2001
  • The contents of heavy metals in boiled Sibjeonaebotang with those in its herbal ingredients are compared. The herbal medicines of Sibjeonaebotang were bought at 10 defferent markets. The contents of 14 heavy metals (Ag, As, Ba, Cd, Cr Cu, Fe, Hg, Mn, Ni, Pb, Sb, Sn, Zn) were analysed using ICP It was found out that 5 heavy metals (Pb, As, Ba, Fe, Sb) were detected in only one boiled Sibjeonaebotang But they were detectable in all Sibjeonaebotang and its herbal before boiling. For example the content of Hg in one pack of Sibjeonaebotang before boiling was 0.064$\pm$0.016 me and Hg in boiled one was 0.002$\pm$0.005mg. These results suggest that boiled Sibjeonaebotang which we take is less harmful than herbal medicine itself by heavy metals.

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석탄회 시용이 논 토양수중의 중금속성분 용출에 미치는 영향 (Effects of Fly Ash on Heavy Metal Contents in Percolated Water of Paddy Soil)

  • 김용웅;윤정한;신방섭;김광식
    • 한국토양비료학회지
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    • 제29권3호
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    • pp.236-242
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    • 1996
  • 논토양에 무연탄회와 유연탄회를 토양무게의 0%, 15%, 30%로 pot에 첨가하고 수도를 재배하면서 침투수 중 중금속의 용탈량을 조사 분석한 결과는 다음과 같다. 침출수 중의 철의 용탈은 재배 후기에 높았으며 수도 재배로 철의 용탈은 증가되나 석탄회 처리간에는 뚜렷한 차이가 없었다. 침투수중의 Mn의 용탈량은 재배에 따라 증가되는 경향으로 재배구의 용탈량이 높았으며 석탄회 처리간에는 뚜렷한 차이가 없었다. 아연의 용탈은 수도 재배 20-25일 경이 가장 높았고 그 이후는 감소되는 경향으로 석탄회 시용으로 용탈량이 증가되지는 않았다. Cu의 침투수중 용탈량은 재배와 더불어 감소되는 경향을 나타냈으며, 석탄회 시용으로 Cu의 용탈량은 증가되지 않았으며 수도재배의 영향도 뚜렷하지 않았다. 침투수중 Pb의 용탈은 재배와 더불어 감소되는 경향이었으며 석탄회 처리로 크게 영향을 받지 않았고 7월 중순 이후는 거의 용탈이 되지 않았다. 침투수 중의 Cd 용탈량은 재배 15일 경에 가장 높았으며 그 이후 감소하여 재배 40일 이후 거의 용탈되지 않는 경향이었으며 석탄회 처리의 영향은 크지 않았다. 석탄회를 처리한 수도재배 조건하에서 투수중 중금속의 용탈량은 대조구에 비하여 우려할 양은 아니었다. 이것은 원래 석탄회 중의 중금속 함량이 낮았고, 또 토양의 pH가 비교적 높기 때문에 중금속의 용해도가 감소되어 가용성 중금 속의 침출량이 적었던 것으로 판단된다.

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식재지반 용토로서 준설토의 이화학적 특성 (Physico-Chemical Properties of Dredged Soils as Planting Soil)

  • 김원태;윤용한
    • 한국조경학회지
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    • 제32권6호
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    • pp.95-102
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    • 2005
  • This study was carried out to find out the heavy metal contents and the physico-chemical properties for the improvement of dredged soils which widely exist in lowlands of Korea. At first all the average heavy metal contents were close to background level and were much lower than concern level of the Soil Environment Conservation Act of Korea. And the results of physical analyses of soils showed on the average $2.46\~2.74 Mg/m^3$ in Particle density, $0.45\~2.45 kg/kg$ in soil water contents, $0.34\~0.90 Mg/m^3$ in bulk density, $0.67\~0.87m^3/m^3$ in porosity, $2.18\times10^{-5}\~1.20\times10^{-8} m/s$ in saturated hydraulic conductivity, R0.12\~0.65 m^3/m^3$ in available water contents. Finally the results of chemical analyses of soils showed on the average $6.5\~8.2\;in\; pH,\;5\~48 g/kg\;in\; OM,\;0.48\~4.51g/kg\;in\;T-N,\;19\~25mg/kg$ in available phosphate, $0.28\~11.80 dS/m\;in\;EC,\;8.7\~38.1cmol/kg$ in CEC, respectively Accordingly, the physicochemical properties of soils ought to be analyzed accurately before dredging for effective using of dredged soils. And it will be more effective, if the dredged soils are used with proper balance among each content of components with consideration to the physicochemical properties of common soils.

논토양의 이화학적 특성 및 침출성 중금속 함량을 이용한 비소의 전함량 예측 (Model Development for Estimating Total Arsenic Contents with Chemical Properties and Extractable Heavy Metal Contents in Paddy Soils)

  • 이정미;고우리;;류지혁;김지영;김두호;김원일
    • 한국토양비료학회지
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    • 제45권6호
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    • pp.920-924
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    • 2012
  • This study was performed to estimate total contents of arsenic (As) by stepwise multiple-regression analysis using chemical properties and extractable contents of metal in paddy soil adjacent to abandoned mines. The soil was collected from paddies near abandoned mines. Soil pH, electrical conductively (EC), organic mater (OM), available phosphorus ($P_2O_5$), and exchangeable cations (Ca, K, Mg, Na) were measured. Total contents of As and extractable contents of metals were analyzed by ICP-OES. From stepwise analysis, it was showed that the contents of extractable As, available phosphorus, extractable Cu, exchangeable K, exchangeable Na, and organic mater significantly influenced the total contents of As in soil (p<0.001). The multiple linear regression models have been established as Log (Total-As) = 0.741 + 0.716 Log (extractable-As) - 0.734 Log (avail-$P_2O_5$) + 0.334 Log (extractable-Cu) + 0.186 Log (exchangeable-K) - 0.593 Log (exchangeable-Na) + 0.558 Log (OM). The estimated value in total contents of As was significantly correlated with the measured value in soil ($R^2$=0.84196, p<0.0001). This predictive model for estimating total As contents in paddy soil will be properly applied to the numerous datasets which were surveyed with extractable heavy metal contents based on Soil Environmental Conservation Act before 2010.

서울시내 가로수목의 수용성유황 및 중금속 함량에 관한 연구 (A Study on the Contents of Soluble Sulfur and Heavy Metals in the Leaves of the Roadside Tree in Seoul Area)

  • 김면섭;이광국
    • 한국대기환경학회지
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    • 제4권1호
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    • pp.1-12
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    • 1988
  • This study was carried out to measure the contents of soluble sulfur and heavy metals in the leaves of roadside tree at 34 sampling sites of Seoul area from the Sep. 1 to Sep. 30 during 1985 and 1986. The results were as follows; 1. Average contents of soluble sulfur at all sampling sites were; Plantanus orientalis 0.474%, Ginkgobioloba 0.562%, and Salix pseudolasiogyne 0.566%. 2. Correlation between sulfur dioxide concentration in the air and soluble sulfur in the leaves by area were; Green belt area R = 0.985, Residential area R = 0.856, Commercial area R = 0.668, Industrial area R = 0.886. Correlation by species were ; Platanus orientalis R = 0.817, Ginkgobiloba R = 0.771, Salix pseudo-lasiogyne R = 0.824. 3. Correlation between $SO_X$ concentration in the air and sulfur contents in the leaves showed positive significance. 4. Contents of soluble sulfur in the heavy traffic area were higher than that of light traffic area. 5. Heavy metal contents of 1986 were higher than that of 1985; Fe> Mn > Zn > Pb > Cu > Cd > Cr. 6. Lead contents in the leaves of 1986 were; Platanus orientalis 16, 701 ppm, Gingobiloba 21,729ppm, Salix Pseudo-lasiogyne 12.418 ppm.

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