• Title/Summary/Keyword: 중금속 분석

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Evaluation of Stabilization Capacity for Typical Amendments based on the Scenario of Heavy Metal Contaminated Sites in Korea (국내 중금속 부지오염시나리오를 고려한 안정화제의 중금속 안정화 효율 규명)

  • Yang, Jihye;Kim, Danu;Oh, Yuna;Jeon, Soyoung;Lee, Minhee
    • Economic and Environmental Geology
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    • v.54 no.1
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    • pp.21-33
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    • 2021

  • The purpose of this study is to determine the order of priority for the use of amendments, matching the optimal amendment to the specific site in Korea. This decision-making process must prioritize the stabilization and economic efficiency of amendment for heavy metals and metalloid based on domestic site contamination scenarios. For this study, total 5 domestic heavy metal contaminated sites were selected based on different pollution scenarios and 13 amendments, which were previously studied as the soil stabilizer. Batch extraction experiments were performed to quantify the stabilization efficiency for 8 heavy metals (including As and Hg) for 5 soil samples, representing 5 different pollution scenarios. For each amendment, the analyses using XRD and XRF to identify their properties, the toxicity characteristics leaching procedure (TCLP) test, and the synthetic precipitation leaching procedure (SPLP) test were also conducted to evaluate the leaching safety in applied site. From results of batch experiments, the amendments showing > 20% extraction lowering efficiency for each heavy metal (metalloid) was selected and the top 5 ranked amendments were determined at different amount of amendment and on different extraction time conditions. For each amendment, the total number of times ranked in the top 5 was counted, prioritizing the feasible amendment for specific domestic contaminated sites in Korea. Mine drainage treatment sludge, iron oxide, calcium oxide, calcium hydroxide, calcite, iron sulfide, biochar showed high extraction decreasing efficiency for heavy metals in descending order. When the economic efficiency for these amendments was analyzed, mine drainage treatment sludge, limestone, steel making slag, calcium oxide, calcium hydroxide were determined as the priority amendment for the Korean field application in descending order.

  • https://doi.org/10.9719/EEG.2021.54.1.21 인용 PDF KSCI

Applicability test of broad leaf samples stored at the NESB for biomonitoring of airborne pollutants (국가환경시료은행 활엽 시료를 활용한 지역별 대기침적 오염물질 모니터링 활용성 검토)

  • Lee, Jongchun;Lee, Jangho;Park, Jong-Hyouk;Lee, Eugene;Shim, Kyuyoung;Jang, Heeyon
    • Journal of Environmental Impact Assessment
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    • v.25 no.6
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    • pp.532-541
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    • 2016

  • The National Environmental Specimen Bank (NESB) has been collecting broad leave samples to monitor environmental pollution from five different designated sampling areas. In order to ensure the reproducibility and comparability of the results, all the procedures from selecting trees and pooling leaves to make the representative sample are defined in the standard operation procedures(the SOP). The representative samples were subjected to the chemical analyses for some heavy minerals and Polycyclic Aromatic Hydrocarbons(PAHs). The uncertainty levels involved in each step of the SOP, that is, the sampling and the chemical analysis, were derived using the Robust ANOVA, which enables the relative comparison among the different levels of pollutants concentrations with confidence. Furthermore, the effect of the varying degrees of precipitation on the pollutants concentration of the leaves was also examined. Overall, the biological difference estimated from the duplicate samples was found to exceed the variation across the site, implying even aerial deposition over site. Samples from Gwanak Mt. showed highest heavy metal concentrations than the other sites. Washing off effect of the pollutants adhering in the form of particles on the leaf surface was found to be affected by the cumulative precipitation.

  • https://doi.org/10.14249/eia.2016.25.6.532 인용 PDF KSCI

Analysis of Heavy Metals Content in Distributed Children's Cosmetic Set (유통 어린이 화장품 세트의 중금속 함량에 관한 분석)

  • In-Sook Lee;Yeon-Ji Kim;Koth-Bong-Woo-Ri Kim;Pyoung-Tae Ku
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.50 no.1
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    • pp.77-84
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    • 2024

  • Four children's cosmetic sets were purchased online, labeled for use from 4 years of age, and 81 components of each were analyzed for lead, cadmium, arsenic, antimony, nickel, cobalt, copper, chromium, and mercury by inductive coupled plasma - mass spectrometry (ICP - MS). The average metal concentrations were as follows: 0.82 ㎍/g for lead, 0.03 ㎍/g for cadmium, 0.97 ㎍/g for arsenic, 0.52 ㎍/g for antimony, 2.32 ㎍/g for nickel and 0.01 ㎍/g for mercury which was lower than the acceptable standards for all products. Higher mean values of lead, antimony, cobalt, and copper were detected in imported than domestic products (p < 0.05). There was a statistically significant difference in the average values of heavy metals according to the type of cosmetics (p < 0.05), with eyeshadow showing the highest mean values of arsenic 2.47 ㎍/g, nickel 6.36 ㎍/g, and chromium 11.06 ㎍/g. and the highest mean concentrations were 1.20 ㎍/g for lead, 1.17 ㎍/g for antimony, and 23.60 ㎍/g for copper in blusher. The levels of cobalt in the 81 children's cosmetics were ND ~ 5.23 ㎍/g, copper were ND ~ 379.61 ㎍/g, and chromium were detected ND ~ 36.95 ㎍/g, respectively. Brown colored cosmetics had the highest mean concentrations of nickel and cobalt. Purple-colored cosmetics had the highest mean concentration of lead and chromium.

  • https://doi.org/10.15230/SCSK.2024.50.1.77 인용 PDF

지류포장재의 중금속 함량 분석

  • Lee, Hak-Rae;Yun, Hye-Jeong;Kim, Jin-U;Seo, Ju-Hwan;Lee, Won-Jae;Lee, Ju-Hui
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 2007.11a
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    • pp.231-236
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    • 2007

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