• Title/Summary/Keyword: 잔류성유기오염물질

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Analytical method of New POPs in environmental samples (환경 중 신규 POPs 분석방법 고찰)

  • Shin, Sun-Kyoung;Park, Jin-Soo;Kang, Young-Yeul;Lee, Su-Young;Chun, Jin-Won;Kim, Dong-Hoon;Yeon, Jin-Mo
    • Analytical Science and Technology
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    • v.23 no.2
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    • pp.128-137
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    • 2010
  • The purpose of this study is to set up the analytical method of new persistent organic pollutants (POPs) such as chlordecone, endosulfan, ${\alpha}$-HCH, ${\beta}$-HCH, ${\gamma}$-HCH. The analytical methods for these compounds listed as new POPs by the Stockholm Convention need to be newly established. Therefore, we proposed the analytical method for 5 organic chlorinated pesticides (OCPs) and then applied the analytical method to environmental samples. To do this, the pre-treatment such as florisil and activated carbon cleanup process in the Korean official method for classic POPs had been reviewed. All of compounds except chlordecone were pre-treated simultaneously with reviewed cleanup process and detected by GC/MS and HRGC/HRMS respectively. There is a problem that chlordecone could not get a high sensitivity by GC analysis, but in this study GC/MS method was proposed.

The analysis and leaching characteristics of organic compounds in incineration residues from municipal solid waste incinerators (생활폐기물 소각시설 소각재에서의 유기오염물질 정성분석 및 용출특성)

  • Hong, Suk-Young;Kim, Sam-Cwan;Yoon, Young-Soo;Park, Sun-Ku;Kim, Kum-Hee;Hwang, Seung-Ryul
    • Analytical Science and Technology
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    • v.19 no.1
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    • pp.86-95
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    • 2006
  • This study was carried out to estimate leaching characteristics of incineration residues from municipal solid waste incinerators, and determine organic compounds in raw ash, leaching water and leaching residue. A total of 44 organic compounds, which were analyzed by GC/MSD and identified by wiley library search, were contained in bottom ashes. A total of 17 organic compounds were contained in fly ashes. Bottom ash and fly ash were found to contain a wide range of organic compounds such as aliphatic compounds and aromatic compounds. Organic compounds such as Ethenylbenzene, Benzaldehyde, 1-Phenyl-Ethanone and 1,4-Benzenedicarboxylic acid dimethyl ester were detected in raw ash, leaching water and residues (from bottom ash). Organic compounds such as Naphthalene, Dodecane, 1,2,3,5-Tetrachlorobenzene, Tetradecane, Hexadecane and Pentachlorobenzene were detected in raw ash, leaching water and residues (from fly ash). Through the leaching characteristics of incineration residue, it was represented that the open dumping of incineration residue can contaminate the soil and undergroundwater. In order to prevent environmental contamination that derived from extremely toxic substances in the incineration residues, it is particularly important that the incineration residues should be treated before disposal the incineration residues. Further study and proper management about leaching characteristics of organic compounds might be required.

Persistent Organic Pollutants (POPs) Residues in Greenhouse Soil and Strawberry Organochlorine Pesticides (딸기 시설재배지 토양 및 농산물 중 잔류성유기오염물질(POPs)의 잔류량 - 유기염소계 농약)

  • Lim, Sung-Jin;Oh, Young-Tak;Jo, You-Sung;Ro, Jin-Ho;Choi, Geun-Hyoung;Yang, Ji-Yeon;Park, Byung-Jun
    • Korean Journal of Environmental Agriculture
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    • v.35 no.1
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    • pp.6-14
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    • 2016
  • BACKGROUND: Residual organochlorine pesticides (OCPs) are chemical substances that persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effect to human health and the environment. They were designated as persistent organic pollutants (POPs) by Stockholm Convention. Greenhouse strawberry is economic crop in agriculture, and its cultivation area and yield has been increased. Therefore, we tried to investigate the POPs residue in greenhouse soil and strawberry.METHODS AND RESULTS: Extraction and clean-up method for the quantitative analysis of OCPs was developed and validated by gas chromatography (GC) with electron capture detector (ECD). The clean-up method was established using the modified quick, easy, cheap, effective, rugged, and safe(QuEChERS) method for OCPs in soil and strawberry. Limit of quantitation (LOQ) and recovery rates of OCPs in greenhouse soil and strawberry were 0.9-6.0 and 0.6-0.9 μg/kg, 74.4-115.6 and 75.6-88.4%, respectively. The precision was reliable sincerelative standard deviation (RSD) percentage (0.5-3.7 and 2.9-5.2%) was below 20, which was the normal percent value. The residue of OCPs in greenhouse soil was analyzed by the developed method, and dieldrin, β-endosulfan and endosulfan sulfate were detected at 1.6-23, 2.2-28.4 and 1.8-118.6 μg/kg, respectively. Those in strawberry were not detected in all samples.CONCLUSION: Dieldrin, β-endosulfan and endosulfan sulfate in a part of investigated greenhouse soil were detected. But those were not detected in investigated greenhouse strawberry. These results showed that the residue in greenhouse soil were lower level than bioaccumulation occurring.

Pesticide-Originated Persistent Organic Pollutants in Agricultural Waterways in Chungcheong Province, Korea (충청지역 농업용수 중 농약 유래 POPs의 모니터링 연구)

  • Lee, Hwa-Sung;Jeon, Hwang-Ju;Lee, Hoi-Seon;Lee, Sung-Eun
    • Journal of Applied Biological Chemistry
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    • v.58 no.4
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    • pp.291-294
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    • 2015
  • Persistent organic pollutants (POPs) including banned organochlorine pesticides, are found in Korean agricultural environments. Their translocation from agricultural environment to major crops has been reported. In this study, the POPs in 15 different agricultural waters of the Chungchung Province were monitored and all samples were prepared, followed by liquid-liquid fractionation and column chromatography prior to analysis using gas chromatography. Among pesticide-originated persistent organic pollutants, ${\alpha}$-endosulfan was determined in the range of 0.01 to 1.13 ng/mL. ${\beta}$-Endosulfan was determined in the range of 0.01 to 0.55 ng/mL, and endosulfan sulfate was ranged from 0.13 to 1.13 ng/mL. The total sum of endosulfans reached the range of 0.38 to 1.18 ng/mL. Three pesticides being used currently were also found in samples as 2.03-2.05 ng/mL for triadimefon, 0.26-0.33 ng/mL for tolyfluanid, and 1.34-3.85 ng/mL for chlorpyrifos. Taken together, endosulfans were introduced in the agricultural waters and their fates need continuous monitoring.

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.

Evaluation of accuracy for measurement of Dioxins (PCDDs/PCDFs) by using certified reference material (CRM) (인증표준물질(Certified reference materials, CRM)을 이용한 이옥신류(PCDDs/PCDFs) 측정의 정확도 평가)

  • Youn, Yeu Young;Park, Deok Hie;Lim, Young Hee;Cho, Hye Sung
    • Analytical Science and Technology
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    • v.22 no.5
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    • pp.376-385
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    • 2009
  • In our study, the accuracy for measurement of seventeen 2,3,7,8-substituted PCDDs/PCDFs in certified reference material (CRM) which is the sample of homogeneous sediment matrix taken from an area known to have significant chemical contamination, particularly PCBs (polychlorinated biphenyls), was evaluated. Though the methodology in this study followed the official method of unintentionally produced persistent organic pollutants (UPOPs) announced by the Ministry of Environment of the Republic of Korea in 2007, there were slight changes using additional purification step by activated carbon column because the interferences of sample were not sufficiently removed when only multi-silica column and alumina column have been used for purification. The |En| number proposed by the Korea Research Institute of Standards and Science was used for a valuation basis of the accuracy. The |En| numbers of seventeen 2,3,7,8-substituted PCDDs/PCDFs have been indicated as 1 and below, they were decided "Pass" in this test, when DB-5MS column and SP-2331 column were used together. Because 1,2,3,7,8-PeCDD and #169-HxCB were not separated on DB-5MS column, the ions of 1,2,3,7,8-PeCDD were selected at M/M+2 instead of M+2/M+4 suggested by EPA 1613. It is possible to distinguish them in HRGC/HRMS analysis.

Investigation of Resiudal Organochlorine Pesticides in Green Perilla (Perilla frutescens var. japonica Hara) Greenhouse Soil and Its Leaves (들깨 생산단지 시설재배지 중 잔류성유기염소계 농약류 잔류량 조사)

  • Lim, Sung-Jin;Oh, Young-Tak;Ro, Jin-Ho;Yang, Ji-Yeon;Choi, Geun-Hyoung;Ryu, Song-Hee;Moon, Byeong-Chul;Park, Byung-Jun
    • The Korean Journal of Pesticide Science
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    • v.20 no.3
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    • pp.221-227
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    • 2016
  • This study was conducted to investigate residual organochlorine pesticides in green house soil and green perilla leaves. Extraction and clean-up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in soil and green perilla leaves. Recovery and limit of quantitation (LOQ) of ROCPs in greenhouse soil and green perilla leaves were 76.3-113.4 and 79.4-107.3%, 0.03-0.24 and $0.33-0.50{\mu}g/kg$, respectively. Detected ROCPs in greenhouse soil were dieldrin and endosulfan sulfate, the residue were 1.6-9.2 and $22.0-87.8{\mu}g/kg$, respectively. But two pesticides in all green perilla leaf samples were not detected. These results showed that ROCPs residue in greenhouse soil was lower than the level of bioaccumulation occurring.

Effect of soil organic matter content on plant uptake factor of ginseng for endosulfan (토양유기물 함량이 인삼근의 endosulfan 흡수이행에 미치는 영향)

  • Oh, Kyeong-Yeol;Choi, Geun-Hyoung;Bae, Ji-Yeon;Lee, Deuk-Yeong;Lee, Sung-Woo;Kim, Jin-Hyo
    • Journal of Applied Biological Chemistry
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    • v.63 no.4
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    • pp.401-406
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    • 2020
  • The plant uptake of endosulfan, a new persistent organic pollutants from soil environment was investigated on ginseng through the field survey in Korea. The endosulfan residues in soil for this survey were ranged on 0.013-0.136 mg kg-1. The plant uptake factor (PUF) for endosulfan in ginseng was 0.243-1.708 and the highest PUF was found on 3-year-old ginseng. The PUF for endosulfan decreased in the longer cultivation period and it might be caused by the dilution effect of ginseng growth. In addition, the soil organic matter (SOM) content affected on the PUF negatively and Pearson correlation coefficient (r) between SOM and PUF was -0.7812 (p <0.05). Thus, higher SOM would positively affect to reduce the endosulfan residue in ginseng root.

Distribution of Persistent Organic Pollutants (POPs) in Different Sizes of Particles in the Ambient Air of the Pyeongteak Area (평택지역 대기 중 먼지 입경별 잔류성유기오염물질 분포특성 연구)

  • Kim, Dong-Gi;Woo, Jung-Sik;Kim, Yong-Jun;Jung, Hye-Eun;Park, Ju-Eun;Cho, Duck-Hee;Moon, Hee-Chun;Oh, Jo-Gyo
    • Journal of Environmental Health Sciences
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    • v.46 no.2
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    • pp.192-203
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    • 2020
  • Objectives: The concentration distributions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenlys (dl-PCBs), and polycyclic aromatic hydrocarbons (PAHs) in fine particles were investigated to provide basic data on POP behavior and composition analysis. Methods: The concentrations of PCDD/Fs, dl-PCBs, and PAHs by particle size were evaluated for TSP, PM10, and PM2.5. Also, fine dust component analysis and factor analysis were performed to identify the source of PCDD/Fs. Results: The particle size distribution was found to account for 24.3% of >10 ㎛, 14.5% of 2.5-10 ㎛, and 61.2% of <2.5 ㎛. The average contributions of coarse particles (>2.5 ㎛) and fine particles (<2.5 ㎛) were PCDD/Fs 67%, dl-PCBs 66%, benzo (a) pyrene 83% and PAHs 84%, and the contributions of fine particles (<2.5 ㎛) were higher than coarse particles (>2.5 ㎛). However, the contributions of coarse particles increased in April to September with higher temperatures, while those of fine particles increased in February to March with lower temperatures. Conclusions: Low chlorinated (4Cl-5Cl) PCDD/Fs were more adsorbed compared to coarse particles due to the influence of pollutant migration from particulate to gas phase according to temperature rise, whereas high chlorinated (6Cl-8Cl) PCDD/Fs were more adsorbed compared to fine particles. PCDD/Fs sources were assessed to be major sources of emissions, such as incineration facilities and/or open burning.

Distribution of Persistent Organic Pollutants(POPs) in Sediment and Organism Collected from Various Culturing Grounds, Korea (국내 양식어장 퇴적물과 생물 중 잔류성유기오염물질 분포)

  • baek, Seung-Hong;Lee, In-Seok;Kim, Hye-Seon;Choi, Minkyu;Hwang, Dong-Woon;Kim, Sook-Yang;Choi, Hee-Gu
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.17 no.4
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    • pp.262-269
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    • 2012
  • We investigated the concentration levels and evaluated the distributions of 17 polychlorinated dibenzo-p-dioxins and furans(PCDD/Fs), 12 dioxin-like polychlorinated biphenyls(DLPCBs) and 24 polybrominated diphenyl ethers (PBDEs) in sediment and organism from various culturing grounds in Korean coast. The levels of PCDD/Fs, DLPCBs, and PBDEs in sediment samples ranged from 0.03 to 2.9(Mean${\pm}$SD, $1.2{\pm}0.89$) pg $WHO_{2005}$-TEQ $g^{-1}$ dry weight(dw), ND(not detected) to 1.1($0.09{\pm}0.19$) pg $WHO_{2005}$-TEQ $g^{-1}$ dw, and ND to 16.6($2.96{\pm}3.53$) ng $g^{-1}$ dw, respectively. Also, the levels of PCDD/Fs, DLPCBs, and PBDEs in culturing organisms ranged from ND to 0.24($0.07{\pm}0.06$) pg $WHO_{2005}$-TEQ $g^{-1}$ wet weight(ww), ND to 0.11($0.04{\pm}0.04$) pg $WHO_{2005}$-TEQ $g^{-1}$ ww, and 0.05 to 0.29($0.13{\pm}0.06$) ng $g^{-1}$ ww, respectively. The levels of total dioxins(PCDD/Fs+DLPCBs) and PBDEs in sediments from East and South sea were four to seven times higher than those from West sea. PCDD/Fs had dominant contribution(mean, 94%) for TEQ concentration in sediment, whereas relatively higher contribution of DLPCBs(33%) were shown in culturing organism than sediment. BDE209 was a dominant congener in both matrix. The concentrations of PCDD/Fs, DLPCBs and PBDEs were in decreasing trends in Korea coasts compared to previous results.