• 제목/요약/키워드: Content of trace metals

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Distribution Of Trace Metals And Sediments In Estuaries Of The Kum River And The Mankyung River

  • Kim, Woo-Yearn;Park , Yong-Ahn
    • 한국해양학회지
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    • 제13권1호
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    • pp.19-28
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    • 1978
  • To estimate the chemical mass balance of several kinds of trace metals in sea water, suspended matter and bottom sediments, sixty samples from the Kum and Mankyung estuaries were analyzed. In both estuaries, the distribution patterns of leachabl suspended trace metals and of bottom sediments were established to be similar. The relationship between the metal concentration and clay content of the sediments was found to be such that the metal concentration increases with an increase in clay content. A linear correlation ws determined between pairs of leachable metals (Fe-Zn, Fe-Mn and Zn-Mn) in the Kum estuary. However, in the Mankyung estuary linear relationship does not exist. Finally, it is suggested that the trace metals are reworking in the Kum estuary and those in the Mankyung estuary are sinking.

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곰소만 바지락(Ruditapes phillippinarum) 양식장 주변 퇴적물 내 유기물과 미량금속 분포특성 (Distributions of Organic Matter and Trace Metals in Surface Sediments around a Manila Clam Ruditapes phillippinarum Farming Area in Gomso Bay, Korea)

  • 최민규;이인석;김청숙;김형철;황동운
    • 한국수산과학회지
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    • 제48권4호
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    • pp.555-563
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    • 2015
  • Organic matter and trace metals were investigated in surface sediments of Gomso Bay, where there is dense Manila clam Ruditapes philippinarum farming activity, to evaluate contamination of sediments in intertidal shellfish farming area. We measured mean grain size (Mz), chemical oxygen demand (COD), ignition loss (IL), acid volatile sulfide (AVS), total organic carbon (TOC), and total nitrogen (TN), and trace metals (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb and Zn) in intertidal and sublittoral sediments. The intertidal sediments were mainly composed of coarser sediments (sand, silty sand, and sandy silt), with Mz values ranging from 2.61 to 4.79 Ø. Mz and the content of organic matter in sediments were lower in the intertidal zone than in the sublittoral zone. The mean metal concentrations in surface sediments decreased in the order Fe > Mn > Zn > Cr > Pb > Cu > As > Cd > Hg. The metal concentrations in surface sediments showed a significant positive correlation with Mz and organic matter content, indicating that metal concentrations in the surface sediments of Gomso Bay are controlled by Mz and organic matter. The concentrations of organic matter and trace metals in the study region were lower than or similar to those in other intertidal zones in western coast and much lower than those reported in other shellfish farming areas in Korea. Our results suggest that intertidal Manila clam farming sediments from Gomso Bay are not contaminated by organic matter and trace metals.

Analysis of Ash and Trace Metals in Korean Native Bee Honey

  • Kim, Seok-Chang;Lee, Jong-Tae;Park, Chae-Kyu;Shim, Sang-Kwon;Han, Sang-Bae;Kwak, Yi-Seong;Whang, Mi-Sun;Won, Jun-Yeon
    • Journal of Applied Biological Chemistry
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    • 제49권4호
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    • pp.154-156
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    • 2006
  • Trace metals in honey have an influence on the taste of honey along with pollens. Western bee honeys, which are mostly collected from acacia, have less than 0.1% of ash. Savor of Korean native-bee honey is thought to be due to the difference of the contents of trace metals. Korean native-bee honeys collected from Jirisan District, which is the greatest producing area of native-bee honey in Korea, showed high contents of ash. Korean native-bee honeys from the districts other than Jirisan District also showed similar results($0.44{\sim}0.83%$ of ash) to those from Jirisan District. Potassium was found to be the principal factor of high content of ash with over 85% of trace metals in ash.

울산지역 주변의 토양 및 곡류(쌀,콩)중의 미량금속 함량에 관한 조사연구 (A Study on Trace Metal Contents in Rice, Soybean and Soils in the Vicinity of Ulsan Area)

  • 김종욱;이용욱
    • 한국환경보건학회지
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    • 제22권2호
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    • pp.69-82
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    • 1996
  • The samples for testing have been collected from Kangdong-myon, Nongso-myon, Beomseo-my on, and Cheongryang-myon in Ulju-Ku, Ulsan-city from July 1994 to March 1995 in order to grasp status of trace metals contained in some rice, soybean and soils, and to provide references in establishing their standard 96 collected samples(48 for cereals and 48 for soils) have been tested to measure levels of Hg, Pb, Cd, Cu, and Zn through methods of trace metal containing analysis and heavy metal analysis. moisture content was also analyzed. And at the same time 0.1N-HCl soluble heavy metal content of soil was measured. The average Hg containing level of samples is 0.006 ppm for cereal and 0.062 ppm for soil, Pb is 0.302 ppm for cereal and 1.137 ppm for soil, Cd is 0.012 ppm for cereal and 0.027 ppm for soil, Cu is 2.01 ppm for cereal and 0.885 ppm for soil, and Zn is 7.853 ppm for cereal and 2.366 ppm for soil.

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울산 태화강 하구역 퇴적물의 유기물 및 미량금속 오염도 평가 (Evaluation of Pollution Level for Organic Matter and Trace Metals in Sediments around Taehwa River Estuary, Ulsan)

  • 황동운;이인석;최민규;김청숙;김형철
    • 한국수산과학회지
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    • 제48권4호
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    • pp.542-554
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    • 2015
  • Grain size, the content of ignition loss (IL), and the concentrations of chemical oxygen demand (COD), acid volatile sulfide (AVS), and trace metals (Fe, Mn, Cu, Pb, Zn, Cd, Cr, As, and Hg) in surface sediments from the Taehwa River estuary, Ulsan, were measured to evaluate pollution levels and potential ecological risks of organic matter and trace metals in estuarine sediment. The mean grain size (Mz) of sediments in the study region ranged from $-0.8-7.7{\varphi}$ (mean $2.8{\pm}2.4{\varphi}$). Surface sediments in the upstream region of the Taehwa River were mainly composed of coarse sediments compared to the downstream region. The concentrations of IL, COD, AVS and trace metals in the sediment were much higher at downstream sites of Myeongchon Bridge in the vicinity of industrial complexes than at upstream sites of those in the vicinity of the residential areas due to the anthropogenic input of organic matter and trace metals by industrial activities. On the basis of several geochemical assessment techniques [sediment quality guidelines (SQGs), enrichment factor (EF), geoaccumulation index ($I_{geo}$), pollution load index (PLI) and ecological risk index (ERI)], the surfaces sediments in the study region are not highly polluted for trace metals, except for As. However, the higher concentrations in downstream study regions of the Taehwa River could impact benthic organisms including shellfish (i.e. Manila clam) in sediments.

시판생약(市販生藥)의 미량금속(微量金屬) 함량(含量)에 관(關)한 연구(硏究) (Studies on the Contents of Trace Metals in Crude Drugs)

  • 박재주;양기숙
    • 생약학회지
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    • 제8권2호
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    • pp.61-68
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    • 1977
  • The content of micro inorganic compounds in the 145 kinds of crude drugs on market was determined with Model 207 Atomic Absorption Spectrophotometer and Model 306 Flameless A.A. Content of Fe, Cu, Ni, Mn, Cd, Cr, Sn, and Pb was examined and the results revealed that the crude drugs which are using as a hematics and emmenagogues contained high content of iron, and those which are using as a antiinflammatory and emmenagogues contained high content of copper. Aromatic stomachics contain manganese and zinc, and diuretics and antiinaflammatory agents do tin. High content of Ni was found in tonics, but chronium and cadmium were not detected in crude drugs. There were no differences of content of trace metals in the various site of plants used.

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통영연근해역 양식산 및 자연산 어류 중의 미량금속 함량 및 안전성 평가 (Trace Metal Contents in Cultured and Wild fishes from the Coastal Area of Tongyeoung, Korea and their Safely Evaluations)

  • 최종덕;정인권
    • 한국식품위생안전성학회지
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    • 제20권4호
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    • pp.205-210
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    • 2005
  • 2003년 3월부터 2004변 2월까지 통영 인근 연안에 서식하고 있는 양식산 및 자연산 어류의 부위별 미량금속의 함량을 분석하였다. 수은은 Cold-amalgam법에 의하여 직접 측정하없고,납,카드뮴,비소,구리,크롬, 아연, 망간 등은 습식분해 후 ICP 및 AAS로 분석하였다. 미량금속별로는 수은이 양식산에서 0.031, 자연산이 0.047,납은 0.321, 0.407, 카드뮴은 0.048, 0.063, 비소는 1.006, 1.132, 구리는 0.467, 0.506, 크롬은 0.233, 0.293, 아연은 9.69, 12.20, 망간은 0.798, 0.624 mg/kg으로 각각 분석되었다. 대부분의 미량금속은 망간을 제외하고 자연산이 높은 값을 나타내고 있었다. 부위별로는 수은, 납, 카드뮴, 구리 및 아연 등은 비장에서 높은 함량을 보였고, 비소는 쓸개와 간에서, 크롬은 껍질에서, 망간은 비장과 간에서 높은 함량을 나타내었다. 통영연근해 어류 중의 미량금속 함량은 우리나라의 중금속 허용기준치 및 미국의 중금속 권고치를 초과하지 않았으며 자연함유량 수준인 것으로 판단되었다. 또한 우리나라 국민이 어류를 통하여 섭취하는 납, 수은, 카드뮴 등의 미량금속 주간 섭취량이 FAO/WHO에서 미량 금속 안전성 평가를 위하여 제시한 PTWI $6.0\∼13.0\%$로 조사되었다.

Comparison of Trace Element, Metal, and Metalloid Contents in North and South Korean Plants

  • Park, Jeong-Soo;Chung, Ha-Sook;Lee, Eun-Ju
    • 한국환경과학회지
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    • 제23권6호
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    • pp.995-1001
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    • 2014
  • When relations improve between North and South Korea, there will be demand for North Korean edible plants because of the low labor cost and similar environmental conditions. However, there is no reliable information about trace elements, metals, and metalloids in edible plants from North Korea. Selenium (Se) and germanium (Ge) have positive effects on basic human health and are therapeutical in diverse illnesses. Metal and metalloid (Cd, Pb) poisoning, on the other hand, can cause many health problems. Plants collected from North Korea had higher selenium content than those from South Korea. Although none of the collected species exceeded the permissible levels of cadmium and lead, their content in plants was significantly higher in North Korea than in South Korea. The high metal contents in plants collected from North Korea may be associated with the soil physicochemical properties as well as the accumulated amounts of elements in the soil.

안동댐과 임하댐 유역에서 퇴적물 특성 및 오염도의 시·공간적 변화 (Spatial and Temporal Variation of Characteristics and Pollution Assessment of Sediment in the Watersheds of Andong-Dam and Imha-Dam, Korea)

  • 김신;정현기;김형근;김주언;박수정;김용석;양득석
    • 한국환경과학회지
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    • 제28권12호
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    • pp.1085-1099
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    • 2019
  • We investigated the spatial and temporal variation in characteristics and pollution assessment of sediments in the watersheds of Andong-Dam and Imha-Dam, in Korea. Surface sediments were collected from six sites once a year for three years (2015-2017), and analyzed for organic matter (water content, IL, COD, TOC, TN, and TP), grain size, and concentration of trace metals (Al, Li, Zn, Cr, Pb, Cu, Ni, and As). Organic matter generally tended to increase, and was higher in the Andong watershed compare to Imha watershed. Surface sediments were mainly composed of silt. Coarse sediments were mainly distributed at the site adjacent to Andong-Dam, and showed fining after coarsening. Fine sediment were mainly distributed at the site adjacent to Imha-Dam, and were gradually coarsening. Concentration of trace metals generally tended to increase, and was higher for sites in watershed of Andong watershed (PLI > 1) than for sites in Imha watershed (PLI < 1). Trace metals in the study area were considered to be affected by fine sediment (silt), and contamination of trace metals was somewhat affected by Pb, and greatly affected by Zn and As.

시판 웅담의 미량금속 정량에 관한 연구 (Determination of Trace Metals in Fel Ursi)

  • 이숙연;유봉신;문혜령;김성경
    • 생약학회지
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    • 제13권3호
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    • pp.102-105
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    • 1982
  • Nine trace elements in Bear Galls(Fel Ursi) studied in this paper are Na, Mg, K, Ca, Cu, Zn, Fe, Pb and Ge. The contents of Na, Mg, K, Ca, Cu, Zn, Fe, Pb are determined by atomic absorption spectrometry and Ge is determined by graphite atomic absorption spectrometry. In both methods, the sample is digested with nitric-perchloric acid and then ashed. The results of analysis are shown in table and the result obtained from this study are as follows. a. The highest content of trace element of Bear Gall is Na and other elements are getting lower in order of K, Mg, Ca, Ge, Zn, Fe, Cu, and Pb. b. Particularly the content of Ge in Bear Gall was determined.

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