• Title/Summary/Keyword: Persistent organic pollutants

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Development of National Emission Inventories for Persistent Organic Pollutants (Unintentionally Formed PCBs, HCB and PAHs) (국내 잔류성유기오염물질(Persistent Organic Pollutants) 배출목록 개발 - 부산물 PCBs, HCB, PAHs를 중심으로 -)

  • 조규탁;이동수;이지윤;김경미;이지은
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.221-222
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    • 2003
  • 잔류성유기오염물질(Persistent Organic Pollutants, 이하 POPs)은 환경에 노출되면 장기간 잔류하면서 인체 및 생태계에 악영향을 끼치며 또한 장거리 이동하는 특징으로 인하여 전지구적인 규제ㆍ관리의 필요성이 제기되고 있다. 이러한 필요에 부응하여 UNEP를 중심으로 국제적인 관리를 위한 논의가 이루어져 2001년 5월 스톡홀름협약(Stockholm convention for Persistent Organic Pollutants)이 당사국회의에서 채택되었고, 우리나라는 외교적 서명을 함으로써 협약가입의사를 분명히 하였다. (중략)

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The Role of Organic Matter and Black Carbon on the Cycling of Persistent Organic Pollutants (POPs) (POPs의 순환에 미치는 유기물 및 black carbon의 역할)

  • Nam Jae-Jak;Hong Suk-Young;Kim Kye-Hoon
    • Environmental Analysis Health and Toxicology
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    • v.21 no.3 s.54
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    • pp.255-266
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    • 2006
  • Soil organic matter (OM) is well documented for its capacity to retain persistent organic pollutants (POPs) and thus is important in dictating the environmental partitioning of POPs between media such as air, water, and soil. Black carbon (BC) is a small component of OM and exhibitt a 10$\sim$100 times greater sorption capacity of POPs than humified OM. Furthermore, due to the inherent long environmental life time of BC, a result of its resistance to physical and biological degradation, POPs can continue to accumulate in BC over a long period of time. The unique properties of BC have been of particular interest over the last 30 years and have resulted in broad research being conducted into its effects of POP cycling in atmospheric, oceanographic and soil matrices. The results of such studies have proved valuable In providing new research initiatives into the role of BC in the cycling of hydrophobic organic compounds (HOCs) as well as giving further insight into the long range atmospheric transport (LRAT) potential and subsequent risk assessment criteria for persistent organic pollutants (POPs). In this report, we introduce a novel study examining the relationships between BC and OM with respect to their POP sorption capacity and discuss the role of BC in influencing the environmental regulation of organic pollutants.

Characteristics and Status of Persistent Organic Pollutants and Heavy Metals in Ambient Air (대기 중 잔류성 유기오염물질과 중금속의 특성과 현황)

  • 김영성
    • Journal of Korean Society for Atmospheric Environment
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    • v.19 no.2
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    • pp.113-132
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    • 2003
  • In May 2001, the Stockholm Convention on Persistent Organic Pollutants (POPs) for phasing out and eliminating POPs was signed by 90 countries at the Diplomatic Meeting in Stockholm. In 1998, three years before the Convention, the protocols on POPs and heavy metals were adopted by the United Nations Economic Commission for Europe under the Convention on Long-Range Transboundary Air Pollution. Growing attention on POPs and heavy metals during the past 10 years is primarily due to their toxicity in minute quantities. POPs and some metal compounds are even more toxic because of their bioaccumulation potentials associated with a high lipid solubility. Furthermore, owing to their persistence and semi - volatility, they are widely distributed in the environment, traveling great distances on wind and water currents. Recent international cooperation to address POPs and heavy metals has focused on these issues. Long -range transport of those pollutants are particularly concerned since Korea is located downwind of prevailing westerlies from China. In this paper, a review is provided to assess the properties, sources, emissions, and atmospheric concentrations on POPs and heavy metals.

Factors to be Considered in Management and Control of Persistent Organic Pollutants (잔류성 유기오염물질의 관리와 제어에서 고려하여야 할 인자들)

  • Ghim, Young-Sung
    • Journal of Korean Society for Atmospheric Environment
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    • v.22 no.3
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    • pp.393-398
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    • 2006
  • As ratification of the Stockholm Convention to eliminate or reduce the release of persistent organic pollutants (POPs) into the environment draws near, the Government and industries are actively developing appropriate management and control measures. However, considerable work is needed in order to clarify vast uncertainties imposed in management and control of POPs while handling POPs is extremely difficult because of their toxicity and low levels in the environment. In this note, some major factors to be considered for effective management and control of POPs are reviewed on the basis of recent findings.

Early-life exposure to endocrine disrupting chemicals associates with childhood obesity

  • Yang, Chunxue;Lee, Hin Kiu;Kong, Alice Pik Shan;Lim, Lee Ling;Cai, Zongwei;Chung, Arthur C.K.
    • Annals of Pediatric Endocrinology and Metabolism
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    • v.23 no.4
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    • pp.182-195
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    • 2018
  • Increasing prevalence of childhood obesity poses threats to the global health burden. Because this rising prevalence cannot be fully explained by traditional risk factors such as unhealthy diet and physical inactivity, early-life exposure to endocrine disrupting chemicals (EDCs) is recognized as emerging novel risk factors for childhood obesity. EDCs can disrupt the hormone-mediated metabolic pathways, affect children's growth and mediate the development of childhood obesity. Many organic pollutants are recently classified to be EDCs. In this review, we summarized the epidemiological and laboratory evidence related to EDCs and childhood obesity, and discussed the possible mechanisms underpinning childhood obesity and early-life exposure to non-persistent organic pollutants (phthalates, bisphenol A, triclosan) and persistent organic pollutants (dichlorodip henyltrichloroethane, polychlorinated biphenyls, polybrominated diphenyl ethers, per- and polyfluoroalkyl substances). Understanding the relationship between EDCs and childhood obesity helps to raise public awareness and formulate public health policy to protect the youth from exposure to the harmful effects of EDCs.

Electro-Oxidation in Combination with Biological Processes for Removal of Persistent Pollutants in Wastewater: A Review

  • Navarro-Franco, Javier A.;Garzon-Zuniga, Marco A.;Drogui, Patrick;Buelna, Gerardo;Gortares-Moroyoqui, Pablo;Barragan-Huerta, Blanca E.;Vigueras-Cortes, Juan M.
    • Journal of Electrochemical Science and Technology
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    • v.13 no.1
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    • pp.1-18
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    • 2022
  • Persistent organic pollutants (POPs) and emerging pollutants (EP) are characterized by their difficulty to be removed through biological oxidation processes (BOPs); they persist in the environment and could have adverse effects on the aquatic ecosystem and human health. The electro-oxidation (EO) process has been successfully used as an alternative technique to oxidize many kinds of the aforementioned pollutants in wastewater. However, the EO process has been criticized for its high energy consumption cost and its potential generation of by-products. In order to decrease these drawbacks, its combination with biological oxidation processes has been reported as a solution to reduce costs and to reach high rates of recalcitrant pollutants removal from wastewaters. Thus, the location of EO in the treatment line is an important decision to make, since this decision affects the formation of by-products and biodegradability enhancement. This paper reviews the advantages and disadvantages of EO as a pre and post-treatment in combination with BOPs. A perspective of the EO scale-up is also presented, where hydrodynamics and the relationship of A/V (area of the electrode/working volume of the electrochemical cell) experiments are examined and discussed.

Air Monitoring of Persistent Organic Pollutants Using Passive Air Samplers (Passive Air Sampler를 이용한 잔류성 유기오염물질의 대기 모니터링)

  • Choi, Sung-Deuk;Chang, Yoon-Seok
    • Journal of Korean Society for Atmospheric Environment
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    • v.21 no.5
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    • pp.481-494
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    • 2005
  • The monitoring of persistent organic pollutants (POPs) in the atmosphere is a basis for the study of the fate of POPs in multimedia environments. Recently, passive air samplers (PASs) for POPs have been developed. In this paper, we deal with the principle, properties, and applications of the PAS. The principle of PAS, which has no pump, is physical sorption of semi-volatile organic chemicals on various sorbent materials. The PAS is much smaller than a high-volume air sampler and does not need electricity. These properties of the PAS make it possible to conduct various-scaled environmental monitoring all over the world including the Arctic and Antarctic, but the major disadvantage of PAS is its long sampling periods up to 2 years. To date, four kinds of PAS have been developed: polyurethane foam (PUF), polymer-coated glass (POG), semi-permeable membrane devices (SPMDs), and XAD resin-based PAS. Among them, SPMDs have been commercialized and are most widely used now. Meanwhile, the POPs emitted from China have a large potential to influence the levels and fates of POPs in Korea. Since characteristics of PAS are quite useful to monitor long-range transport of POPs, the use of PAS is highly recommended.

Case Studies for the Ratification of Stockholm Convention on Persistent Organic Pollutants with Specific Exemption in South Korea (Stockholm 협약 비준 대비 잔류성유기오염물질의 특정면제를 위한 국내 실태조사)

  • Kim, H.H.;Lee, J.Y.;Yang, J.Y.;Lee, J.S.;Shin, D.C.;Jung, H.W.;Lim, Y.W.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.12 no.1
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    • pp.63-75
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    • 2010
  • United Nations Environment Program adopted a global binding agreement to regulate the production and distribution for the persistent organic pollutants (POPs) in May 22, 2001. The agreement took its effectuation with the ratification of 59 countries from the approval of 151 countries in May 17, 2004. After the approval on the binding agreement in October 4, 2001, South Korea performed systematic investigation for the ready of ratification on the convention with country-specific exemption for some chemical substances. Case study with documentary examination and fact-finding survey found some potential problem for 5 chemical substances such as chlordane, dichloro diphenyl trichloroethane (DDT), hexachlorobenzenes (HCB), heptachlor, polychlorinated biphenyls (PCBs). However, subsequent investigation with more detailed degree showed the possibility for the ratification with no country-specific exemption.

The distribution characteristics of persistent organic pollutants in incineration residues at solid waste incinerators (소각시설 소각재의 잔류성 유기오염 물질 분포특성)

  • Kim, Jong-Hyang;Lee, Bang-Hee;Baek, Sung-Bok;Lee, In-A;Lee, Sang-Hee;Park, Kyung-Ho;Kim, Hyun
    • Analytical Science and Technology
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    • v.22 no.2
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    • pp.119-127
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    • 2009
  • This study was carried out to investigate the distribution characteristics of persistent organic pollutants in incineration residues at industrial waste incinerators and municipal solid waste incinerators, which were analyzed by the official analytical method for the endocrine disrupting chemicals and the waste. Seven of 12 persistent organic pollutants were quantitatively analyzed by GC-MSD (SIM-mode). Hexachlorobenzene was detected in 21 samples among 44 incineration residues. The level of hexachlorobenzene was 0.132-8.138 ng/g in incineration residues, 0.195-5.765 ng/g in fly ash at industrial waste incinerators, 0.270-1.828 ng/g in bottom ash and 0.154-50.643 ng/g in fly ash at municipal solid waste incinerators, respectively.