• Journal of Ginseng Research
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• 제16권1호
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• pp.24-30
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• 1992

Extracts of Panax ginseng root significantly induced tolerance of Fusarium oxysporum to heavy metal, mecury, as the fungal mycelial growth was less inhibited by mercury chloride on potato dextrose medium(PDA) amended with ginseng root than on the PDA with no ginseng amendment. The most favorable concentration of ginseng root powder in detoxification of mercury chloride was 1%. The induced tolerance of F. oxysporum to mercury chloride appeared to be rather due to absorption of ginseng components, and was not related to stimulation of mycelial growth of the fungus per so by ginseng treatment. Ginseng components responsible for inducing tolerance of the fungus to mercury were involved in the water fraction of the ginseng root extract, although the water fraction had no effect on enhancement of the mycelial growth on the medium without mercury chloride. The hexane fraction of ginseng root extract, by which the mycelial growth was stimulated, was not related to the inducement of the tolerance to mercury chloride. However, more tolerance to mercury chloride was noted in PDA with both the water and hexane fractions combined than with either of the two fractions. Six-year-old ginseng roots were more effective in detoxification of mercury chloride than 4-year-old ginsng roots, and American ginseng (P quinquifolium) had no or little effect on inducing tolerance of the fungus to mercury chloride. This method may be used to screen other natural materials for test in the detoxification of mercury chloride.

• 한국지하수토양환경학회지:지하수토양환경
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• 제23권1호
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• pp.63-73
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• 2018

Rice is a staple food source in Asian countries. In paddy field, rice plant can take up toxic elements through its roots from contaminated soils, and its leaves and grain can absorb the toxic elements deposited on the soil surface. A totla of 40 soil and polished rice samples were collected around four abandoned metal mines in Korea and analyzed for As, Cd, Cu, Pb and Zn by atomic absorption spectrophotometer (AAS). The average contents of As, Cd, Cu, Pb and Zn in rice grain grown on the contaminated soils were 0.247, 0.174, 4.694, 0.804 and 16.78 mg/kg, respectively. These levels are higher than worldwide average concentrations. Assuming the rice consumption of 169 g/day by overall households in Korea, the estimated daily intakes from the rices were found to be 33, 48, and 63% for As, Cd, and Pb, respectively, of the acceptable daily intake (ADI) suggested by the FAO/WHO Joint Food Additive and Contaminants Committee.

• Journal of Preventive Medicine and Public Health
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• 제38권4호
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• pp.401-407
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• 2005

Objectives : We wanted to investigate the relationship between heavy metal, especially lead and mercury, to the blood pressure and cholesterol level in children. Methods : This study was undertaken in three primary schools and the study subjects were a total of 274 children. The lead in the blood and the urine mercury were analyzed by performing atomic absorption spectroscopy. Results : All of participants' blood lead levels and urine mercury concentrations were below the suggested level of concern according to the criteria of the CDC and ATSDR. We found no significant correlation between lead, mercury and the blood pressure. The blood lead level did not show any relationship with the blood pressure and cholesterol. However, the urine mercury levels were associated with the serum cholesterol. Conclusion : Our study suggests that mercury can induce an increase of cholesterol as a risk factor of myocardial infraction and coronary/cardiovascular disease.

• Asian Journal of Atmospheric Environment
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• 제7권1호
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• pp.56-63
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• 2013

Children are particularly vulnerable to adverse health effects associated with heavy metal exposure. The goal of this study was to investigate the relationship between proximity to an industry complex and blood lead and urinary cadmium levels for children aged 7-13 who lived in Ulsan where a big petrochemical complex is located. We conducted a questionnaire survey to collect data including sociodemographics, daily habits, residential environment, etc. We also analyzed blood lead and urinary cadmium levels using Atomic Absorption Spectrometry (AAS). Data were analyzed using regression analysis. All statistical analyses were conducted with SAS software version 9.2. We calculated distance by using a Geographic Information System (ArcGIS version 10.0). The geometric mean blood lead level was 1.55 ${\mu}g/dL$ (boys: 1.59 ${\mu}g/dL$, girls: 1.51 ${\mu}g/dL$), and the geometric mean urinary cadmium level was 0.51 ${\mu}g/g$ creatinine (boys: 0.45 ${\mu}g/g$ creatinine, girls: 0.58 ${\mu}g/g$ creatinine). In the results of regression analyses, we found that urinary cadmium levels significantly decreased as distance between residence and industrial complex increased after adjusting for age, gender, income, passive smoking and the length of residence. This result was opposite to that for lead levels. Our observations support the hypothesis that urinary cadmium levels in children are related to their proximity to an industrial complex.

• 한국결정성장학회지
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• 제17권3호
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• pp.133-137
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• 2007

화력발전소에서 발생하는 저회와 준설공사 시 발생하는 준설토를 효과적으로 자원화하기 위하여 인공경량골재를 만들어 경량콘크리트에 적용 가능한지 물리 화학적 분석을 진행하였다. 서울에서 20 km 서쪽에 위치해 있는 영흥도에서 발생된 저회와 준설토를 이용하여 인공경량골재를 제조하였으며, 모든 원료는 혼합 전 분쇄하여 사용되었다. 제조된 골재는 KS에 의거하여 입도시험, 표건밀도와 흡수율 시험, 안정성, 알칼리 잠재반응, 중금속 용출 시험을 진행하였다. 입도분석에서 굵은 골재는 적정 조립율 값을 나타내었고, 잔골재는 조립율의 범위를 벗어났다. 경량화 될수록 흡수율이 증가하는 사실을 알 수 있었다. 안정성 및 중금속 용출 시험 결과 무해한 것으로 판단되었으나, 알칼리 잠재 반응성 확인 결과 몇몇 조성을 제외하고 무해한 골재로 판정되었다.

• 한국동물위생학회지
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• 제22권1호
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• pp.1-7
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• 1999

This study was performed to investigate the contents of the heavy metals such as cadmium(Cd), copper(Cu), iron(Fe), lead(Pb) and zinc(Zn) in meat and meat products. For this experiment, each 20 samples of beef and pork were collected at slaughterhouse in Seoul areas and 45 samples of meat products(ham, sausage, processed meat and seasoned meat) were purchased from commercial food markets. The contents of the heavy metals was determined by atomic absorption spectrophotometry from Jan. to Nov. In 1998. The results obtained were summarized as follows ; 1. In Korean native beef, mean values of the heavy metals(mg/kg) were Pb : 0.14$\pm$0.10, Cd : 0.07$\pm$0.02, Cu : 1.73$\pm$0.95, Zn : 42.82$\pm$8.17 and Fe : 67.43$\pm$24.18, respectively. 2. In imported beef, mean values of the heavy metals(mg/kg) were Pb : 0.03$\pm$0.08, Cd : 0.06$\pm$0.02, Cu : 1.41$\pm$0.62, Zn : 42.93$\pm$4.95 and Fe : 40.06$\pm$12.77, respectively. 3. In pork, mean values of the heavy metals(mg/kg) were Pb : not detected, Cd : 0.09$\pm$0.02, Cu : 1.08$\pm$0.23, Zn : 19.49$\pm$6.02 and Fe : 30.21$\pm$10.51, respectively. 4. In ham, mean values of the heavy metals(mg/kg) were Pb : trace, Cd : trace, Cu . 1.19$\pm$0.46, Zn : 13.58$\pm$4.99 and Fe : 31.43$\pm$11.74, respectively. 5. In sausage, mean values of the heavy metals(mg/kg) were Pb : 0.15$\pm$0.34, Cd : 0.08$\pm$0.05, Cu : 1.15$\pm$0.46, Zn : 13.70$\pm$7.13 and Fe . 27.28$\pm$15.05, respectively. 6. In processed meat, mean values of the heavy metals(mg/kg) were Pb : 0.08$\pm$0.13, Cd : 0.09$\pm$0.04, Cu : 1.28$\pm$0.60, Zn : 14.72$\pm$7.09 and Fe : 24.04$\pm$10.33, respectively. 7 In seasoned meat, mean values of the heavy metals(mg/kg) were Pb : 1.05$\pm$2.21, Cd : 0.13$\pm$0.03, Cu : 1.06$\pm$0.16, Zn : 17.53$\pm$8.72 and Fe : 26.76$\pm$9.02, respectively.

• 환경위생공학
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• 제6권1호
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• pp.95-102
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• 1991

This study was carried out to determine the contamination level of heavy mentals in canned fishes on the market. Contents of tin, lead, iron and zinc were analyzed by Atomic Absorption Spectrophtometer. Contents of total mercury were determined by mercury analyzer. The results were as follows. 1. The highest value of tin was $1.7706{\pm}0.3216$pprn in canned yellow pin & skip jack(mix) tuna, the lowest was 1.2109 ${\pm}$ 0.0769ppm in canned mackerel pike. 2. The highest value of lead was 0.1657 ${\pm}$ 0.0530 pprn in canned yellow pin tuna, the lowest was 0.0335k 0.0100 pprn in canned mackerel pike. 3. The highest value of iron and zinc was 22.5943 ${\pm}$ 0.7945 ppm and 13.4556 ${\pm}$ 0.6774 pprn in canned sardine fish, the lowest was 4.3514 ${\pm}$ 0.3607 pprn and 3.8773 ${\pm}$ 0.1914 pprn in canned albacore tuna. 4. The total mercury contents was detected 0.0531~0.3386 pprn in three kinds of canned tuna and could not be detected with the others.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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• pp.71-75
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• 1998

The objective of this study is to investigate geochemical characteristics of mine wastes including tailings in various abandoned mines in Korea. Tailings and wastes were sampled in and around 39 metalliferous mines, and analysed heavy metal concentrations including Cd, Cu, Pb and Zn extracted by 0.1N HCl and aqua regia by Atomic Absorption Spectrometry. Measurements of paste pH and lime requirement were carried out to examine a general geochemical characteristics of the materials. Lots of mine wastes were characterized by very low pH values of 2 to 4 and high lime requirement to control neutralization of the wastes. In addition, elevated levels of heavy metals were found in various mine wastes extracted by both 0.lN HCl and aqua regia. Because the mine wastes can be dispersed into the downstream by clastic movement and wind-blow, it is necessary to control the materials with a proper method for their reclamation.

• 한국식품영양과학회지
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• 제6권1호
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• pp.73-79
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• 1977

1. 쌀 중의 구리 함량은 $0.62{\sim}2.59ppm$으로써 울주산에서 최고 함량이 검출되었다. 2. 납은 $0.06{\sim}0.2ppm$의 범위이며, 최고치는 진양산이었다. 3. 아연은 $0.11{\sim}0.61ppm$으로 진양산이 가장 높은 함량을 나타내었다. 4. 카드뮴은 시료 중 4개소만 검출되었고 0.004 ppm이하로 나타났었다. 5. 수은은 시료 중 6개가 검출되었으며 0.008ppm이하이었다. 6. 논흙과 쌀의 중금속 함량비는 구리에서 6:1, 납 14:1, 아연 56:1이고 카드뮴과 수은은 미량으로 나타났었다.

• 한국환경과학회지
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• 제8권5호
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• pp.607-610
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• 1999

The odor removal of landfill site leachate was carried out using pyroligenous liquid. The constituent elements of pyroligenous liquid and leachate were also analysed, employing Atomic Absorption Spectroscopy(AAS). Before order removal, the heavy metal ions such as Pb, Zn, Cu, Mn, Fe and Ni, in pyroligenous liquid were detected with ultra trace level. However, in this liquid, other metal ions such as As, Hg and Cd were not observed. The optimum condition for removing odor fromthe leachate was observed in 15 times dilution of pyroligenous liquid. Also, the degree of outlet odor was 1. Furthermore, the concentration of odor constituent compounds, e.g. $H_2S, NH_3, NH_2$ and $CO_2$ in the leachate was remarkably reduced. Finally, water quality of the leachate was improved.