• Title/Summary/Keyword: Environment pollution

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A Study on Emission Characteristics of Air Pollutants from the use of Solid Fuel (고체연료 사용에 따른 오염물질 배출특성 조사연구)

  • Kim, Jong-Hyeon;Heo, Sun-hwa;Kim, Hyung-Chun;Jo, Myeong-ran;Lim, Seungy-oung;Lee, Sang-Bo;Kang, Dae-il
    • Journal of Korean Society for Atmospheric Environment
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    • v.33 no.2
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    • pp.77-86
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    • 2017
  • Globally, use of affordable fuels such as briquettes, woods and wood pellets has increased. Organic pollutants emitted from non-point sources using solid fuels may have contributed to air pollution in urban environment. In this study, we utilized simulated incinerator proposed by U.S. EPA and investigated concentrations of PM, $PM_{10}$, $PM_{2.5}$, OC/EC, CO, $SO_x$, $NO_x$, VOCs and PAHs emitted while cooking meat and fish using briquettes, woods and wood pellets, and developed emission factors. As a result, wood combustion produced more air pollutants than the others. Particulate matter emission factors for woods and wood pellets were 13.54 g/kg and 9.15 g/kg, respectively. Total VOCs emission factors for briquettes, woods and wood pellets were 36.12mg/kg, 46.13mg/kg and 18.26mg/kg, respectively. Additionally, total PAHs emission factors for briquette, woods and wood pellets were 0.44 mg/kg, 18.84mg/kg and 101.62mg/kg, respectively.

A Study on the Improvement Scheme of the Total Water Pollution Load Management Plan (수질오염총량관리 계획수립의 개선방안에 관한 연구)

  • Kim, Young-Il;Yi, Sang-Jin
    • Journal of Korean Society on Water Environment
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    • v.22 no.6
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    • pp.977-981
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    • 2006
  • In order to improve water quality in drinking water sources, Ministry of Environment (MOE) was implemented total water pollution load management (TWPLM) in all the major river basins. From the experience of the application of TWPLM, we could find some problems relating the target watershed, standard operating procedure (SOP) of establishment and implementation plan, water quality and flow rate, design flow, water quality model, margin of safety (MOS), and estimation of wasteload were found. The authors were reviewed ongoing TWPLM and presented the improvement schemes for a successful TWPLM. For the application of these suggestions, further detailed studies should be done to implement TWPLM in the future.

Transition of Social environment and Detergent Based on Newspapers: Focusing on Mail, Dong-a and Cho-seun ilbo from 1910`s to 1998`s (신문에 반영된 사회환경과 세제 변화)

  • 신상숙
    • The Research Journal of the Costume Culture
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    • v.7 no.1
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    • pp.165-176
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    • 1999
  • The objective of this study was to investigate news on the detergent to know transition of the detergent and the social environment in the Korean daily newspapers. The relationship between social environment and detergent were analyzed articles of Mail, Dong-a and Cho-seunilbo from 1910\`s to 1998\`s. The results were as follows. Times of ancient detergent had been existed natural cleaners. Times of hard-type detergent was happened problems the environmental pollution and the safty of the human body. Times of soft -type detergent needed development new detergents for decrease of environmental pollution. Times of detergent on the affinity environment were used the refill products, mark of environmental protection for decrease the pollution of the environment.

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Analysis of Soil Contamination with Depth in Non-sanitary Closed Waste Landfill (비위생 사용종료매립장의 심도별 토양오염도 분석)

  • Oh, Young-In;Kim, Kwan-Ho;Lee, Dong-Geon;Cho, Sook-Hee;Bak, Eun-Suk
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.1217-1224
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    • 2010
  • These days, the maintenance of closed waste landfill come to the fore social problem such as legal maintenance period, after closed maintenance deposits, stability evaluation guides and environmental survey for closed landfill management. Therefore the many non-sanitary closed waste landfill has been removed by selection and transfer to sanitary landfill and incineration. When the remove the non-sanitary landfill, the pollution level of bottom soil was investigated by related government law. In this case study, the soil contamination survey was performed to evaluate the pollution level of non-sanitary closed landfill bottom soil. Based on this study, the pollution level of studied non-sanitary landfill bottom soil was content with related government law for third area(factory, parking lot, gas station, road, railroad use etc.).

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The Temporal and Spatial Distribution of Volatile Organic Compounds(VOCs) in the Urban Residential Atmosphere of Seoul, Korea

  • Anthwal, Ashish;Park, Chan-Goo;Jung, Kweon;Kim, Min-Young;Kim, Ki-Hyun
    • Asian Journal of Atmospheric Environment
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    • v.4 no.1
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    • pp.42-54
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    • 2010
  • Automobile emissions have caused a major hydrocarbon pollution problem in the ambient air of many cities around the world. This study was conducted to measure the pollution status of volatile organic compounds (VOCs) in some urban residential areas in Seoul, Korea. A total of 20 VOCs (11 aromatic and 9 chlorinated species) were identified at 4 urban residential sites in Seoul, Korea from February 2009 to July 2009. Comparison of total VOC (TVOC) concentration data indicated the dominance of the aromatic species with the maximum (72.2 ppbC) at Jong Ro (JR) and the minimum at Yang Jae (33.4 ppbC). The peak concentration of TVOC occurred during spring at all sites with an exception at Gang Seo (GS), where it was recorded during winter. The distribution of individual VOCs at the study sites was characterized by high toluene concentration. A strong correlation of benzene was also observed with other VOCs and criteria pollutants at all sites (except YJ). The overall results of this study suggest that vehicular emissions have greatly contributed to the increase in VOC pollution at all the study sites.

Strategies for Response and Mitigation of Marine Environmental Damage Caused by Plastic Debris

  • Lee, Jungsub
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.3
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    • pp.439-446
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    • 2021
  • Environmental damage caused by marine plastic debris occurs and has become a major contributor to marine pollution. This study analyzed the current state of marine plastic debris pollution and proposed essential strategies to reduce damage. To assess the current state of pollution arising from marine plastic debris, this study investigated the properties of plastic debris, reviewed case studies of ecological impacts, and examined the inflow and distribution of marine plastic debris. The results of this study indicate that the major deleterious effects of marine plastics are entanglement and ingestion. In addition, the amount of plastic waste entering the sea was estimated to be 230 Mt in 2015 and may increase to 554 Mt in 2050. In this study, three key strategies were proposed to reduce damage and preserve the ecosystem, including: 1) removing plastic debris in the marine environment, 2) limiting the release of plastic debris to the marine environment, and 3) preventing damage to humans and marine life from plastic debris. To minimize the environmental damage caused by marine plastic debris, the proposed response strategies should be implemented in parallel.

An Ecological Study of Lung Cancer Mortality and Severe Air Pollution in the 1960s in an Industrial City in Japan

  • Shima, Masayuki;Yoda, Yoshiko
    • Asian Journal of Atmospheric Environment
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    • v.3 no.1
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    • pp.9-18
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    • 2009
  • This study aimed at assessing the association between exposure to severe air pollution in the past and the subsequent transition in lung cancer mortality among persons who lived in an industrial city. Vital statistics from 1983 to 2006 and the data on air pollution measurements from 1960 to 1990 in Amagasaki City, Japan, were used. Pearson correlation coefficients were calculated between the standardized mortality ratios (SMRs) for lung cancer and the air pollution levels in 6 wards of Amagasaki City. The associations between changes in air pollution levels and the annual SMRs were also evaluated in the light of a potential latency period. The levels of air pollution were extremely high in the 1960s, and they decreased since 1970. The SMRs for lung cancer in 1989-1993 among females for 6 wards were significantly associated with the amounts of both sulfur oxides and dust fall in the past for each ward. The positive associations were observed between the annual SMRs among females and the amounts of both pollutants when the lag time of 20-30 years was taken into account. These results suggest that severe air pollution in the 1960s in an industrial city affected the subsequent increase in lung cancer mortality.

Vehicle-related Fine Particulate Air Pollution in Seoul, Korea

  • Bae, Gwi-Nam;Lee, Seung-Bok;Park, Su-Mi
    • Asian Journal of Atmospheric Environment
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    • v.1 no.1
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    • pp.1-8
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    • 2007
  • Vehicle exhaust is a dominant source of air pollutants in urban areas. Since people are easily exposed to vehicle exhaust particles while driving a car and/or traveling via public transportation, air pollution near traffic has been extensively studied in developed countries. In this paper, investigations on vehicle-related fine particulate air pollution at roadsides and on roads in Seoul, Korea were reviewed to understand air pollution near traffic. Comparison of $PM_{10}$ concentrations in Seoul showed that roadside air is more contaminated than urban air, implying that exposure levels near vehicular emissions are more critical to sensitive persons. Concentrations of ultrafine particles and BC (black carbon) at roadsides of Seoul fluctuate highly for short durations, responding to traffic situations. Diurnal variations of ultrafine particles and BC concentrations at roadsides seem to be affected by traffic volume, mixing layer height, and wind speed. Concentrations of ultrafine particles and BC decrease as distance from the road increases due to dilution during transport. On-road air pollution seems to be more severe than roadside air pollution in Seoul. Since nearby traffic air pollution has not been well understood in Seoul, further studies including various vehicular air pollutants and representative locations are needed.

Determinants of Heath : Environmental Factors (국민 건강의 결정 요인 2 : 환경요인)

  • Lim, Hyun-Sul
    • Journal of Preventive Medicine and Public Health
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    • v.26 no.4 s.44
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    • pp.480-507
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    • 1993
  • Environmental pollution is common problem of the present world that is intimately related to the future survival of human beings. The problems of environmental pollution originate from the pursuit of benefit by enterprises, insufficient countermeasure of government and ignorant life style of the people. Health hazards due to environmental pollution have characteristics of irreversibility, difficulty in measurement and ineffectiveness of personal prevention. Objects of this article are to review the various aspects of environmental pollution, to outline the present status of environmental pollution and strategy to control environmental pollution in Korea. In the first part of this article, causes of environmental pollution are presented. International relationships, world-wide status of environmental pollution and health hazards due to environmental pollution are briefly reviewed. In the second part, present status of air, water, soil and ocean pollution in Korea is presented. Pollution by radioactive materials, noise, vibrations, odor, wastes and chemicals is reviewed. Climate changes related to environmental poisoning, problems of workplace environment, pesticide and defoliants are also reviewed. Finally, control measures for environmental pollution including the role of government are reviewed.

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