• Title/Summary/Keyword: Emission pollutants

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Evaluation on Emission Characteristics of Trace Hazardous Material from Motorcycle Exhaust by EURO III (EURO III에 의한 이륜자동차의 미량유해물질 배출특성평가)

  • Yoo, Heung-Min;Son, JiHwan;Park, Gyu-Tae;Mun, SunHee;Yun, ChangWan;Kim, JeongSoo;Lee, JongTae
    • Journal of ILASS-Korea
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    • v.20 no.4
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    • pp.207-216
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    • 2015
  • Recently, the researches for air pollutant control technologies have been performing in Korea, while considering an one of the latest main topics as problems on air pollutant control. However, it is difficult to investigate emission amount of air pollutant by passenger cars, because of lack of the domestic information about mobile source; the number of research institutes are less in the whole. Especially, the informations on registered numbers and emissions of motorcycles are less. Thus, in this study, the analysis that is based on experimental results was conducted for finding out source profiling and emission characteristics on motorcycles exhaust. For these experiments, the domestic motorcycles were chosen and evaluated by EURO III standard. From the result, controlled pollutants (CO, HC, NOx) were met to EURO III, but low displacement motorcycles showed a higher incomplete combustion reaction than that of 250 cc motorcycles. Additionally, uncontrolled pollutants (BTEX and 1,3-butadiene) were decreased with increasing a displacement of motorcycles. However, the emission trend of aldehydes was not followed that of those; the formaldehyde ratio increased upto approximately 33%, with increasing a displacement of motorcycles. In the future, it would be used to support the CAPSS as basic data of Korea.

An Investigation for Air Pollutants Emitted from Small-Scale Incinerators in Highway Service Area (고속도로 휴게소의 소형소각로에서 배출되는 대기오염물질 조사)

  • Jang, Young-Kee;Choi, Sang-Jin;Kim, Kwan;Hong, Min-Sun;Choi, Join-In;Moon, Su-Ho;Kim, Soon-Tae;Kim, Seung-Do
    • Journal of Korean Society for Atmospheric Environment
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    • v.18 no.6
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    • pp.539-546
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    • 2002
  • The physicochemical properties of solid wastes generated from seven highway service areas, four branch offices, and one construction site were analyzed in concert with air pollutants including heavy metals emitted from near-by small-scale incinerators. The amount of solid wastes generated from highway areas has been increasing with recent increases in the number of highways and passengers. Twelve incinerators examined in this study generally had capacity smaller than 100 kg/hr, most of which were equipped with cyclone for dust removal. It was seen that the concentrations of the gas-phase air pollutants (e.g., SO$_2$, NO$_{x}$, HCl and H$_2$S) were above the acceptable emission standards except one or two sites. CO concentrations at all incinerators were also higher due to incomplete combustion. In addition, particulate matters showed concentration six times higher at their maximum. The results of heavy metal analysis showed that the concentrations of Cu, Cd, and Ni satisfied the emission standards. whereas Pb at one site and Zn at five sites exceeded the standards. Cr measurement results indicated that 9 of 12 incinerators had higher values than the standard; especially one branch office showed nine times higher than normal concentration. In order to satisfy more stringent emission standards in the near future, it is necessary to install air pollution control system and to develop an intensified management plan.n.

A Field Survey on the Characteristics of Air Pollutants Emission from Commercial Charcoal Kiln (숯가마에서 발생하는 대기오염물질의 배출특성에 관한 현장조사 연구)

  • Park, Seong-Kyu;Choi, Sang-Jin;Kim, Jin-Yun;Park, Gun-Jin;Hwang, Ui-Hyun;Lee, Jeong-Joo;Kim, Tae-Sik
    • Journal of Korean Society for Atmospheric Environment
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    • v.29 no.5
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    • pp.601-614
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    • 2013
  • The commercial charcoal kiln was projected the largest source of biomass burning sector in Korea. Commercial charcoal kiln was operated to emit air pollutants into the air without any air pollution prevention equipment. The object of this field survey was to understand characteristics of air pollutants concentration and emission factors and to provide preliminary data for effective processor from oak charcoal manufacturing process. As result of field survey, TSP, $PM_{10}$ and $PM_{2.5}$ concentration from charcoal kiln were 400~37,000 $mg/m^3$. These values were over the 100 $mg/m^3$ in TSP, this value was effluent quality standard of Clean Air Conservation Act. The average concentration of CO, $SO_2$ and TVOC were 2~5%. 0~110 ppm and 820~10,000 ppm respectively. The emission factors were 42.4 g-PM/kg-oak in TSP, 40.3 g-PM/kg-oak in $PM_{10}$, 38.2 g-PM/kg-oak in $PM_{2.5}$, 182.5 g-CO/kg-oak, 1.0 g-NO/kg-oak, $SO_2$ 0.2 g-$SO_2/kg$-oak and 104.4 g-TVOC/kg-oak. The part of commercial charcoal kiln had air pollution prevention equipment but it was difficult to work properly. Much wood tar excreted in exhaust emissions from oak charcoal manufacturing process. This wood tar was cause of many troubles sticking in the air pollutant prevention equipment. For handling particulate matters and gaseous air pollutants from oak charcoal manufacturing process in biomass burning, air pollutant prevention equipment design and management needs preprocessor for removal wood tar.

Analysis of the Present State of Air Pollutant Emission Data for the Greater Seoul Area (서울.수도권 지역 주요 대기오염물질 배출원 자료 현황 분석)

  • 김진영;김영성;김용표
    • Journal of Korean Society for Atmospheric Environment
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    • v.15 no.6
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    • pp.813-826
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    • 1999
  • To understand the present status of air pollutant emission data for the greater Seoul area, existing air pollutant emission data were analyzed and compared. For the criteria pollutants, estimation methods of emissions from point, line, and area sources adopted in the previous studies were analyzed and their results were compared. Two sets of VOC emission estimation were also compared and analyzed. There exists a large discrepancy among previous emission data due to the differences in the scope of emission sources and the estimation method including emission factors employed in each estimation. Applications of previous air pollutant emission studies for air quality modeling and related problems were discussed.

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A Study on the Estimation of Landfill Gas Emission by LAEEM in KOREA (LAEEM에 의한 전국 매립가스 발생량 추정에 대한 연구)

  • 장영기;서정배
    • Journal of Korean Society for Atmospheric Environment
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    • v.14 no.5
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    • pp.499-506
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    • 1998
  • Recently almost wastes except recycled garbage are dumped into landfill site in Korea. Landfills are significant compounds (NMOCS) are produced. NMOCS include reactive volative organic compound (VOC) and hazardous air pollutants. LAEEM (Landfill Air Emissions Estimation Model) developed by Control Technology Center, V.S. EPA is used to estimate a mount of landfill gas from all landfills. As the result, landfill gas 4,121,000 ton, carbon dioxide 2,951,000 ton, methane 1,1120,000 ton are estimated as emissions from all landfills in Korea.

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A Basic Study on the Estimation of Exhaust Emission Rates by Railroad Vehicles (철도차량에 의한 배기가스 배출량 예측에 관한 기초연구)

  • 박덕신;정우성;정병철;김태오
    • Proceedings of the KSR Conference
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    • 2001.10a
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    • pp.392-397
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    • 2001
  • As the air pollution caused by diesel vehicles goes worse, so non-road vehicles exhaust gas standard is strict in an foreign countries. In this paper, we calculate the amount of emission rates from Korean railroad lines and train kinds. Air pollutants emissions are calculated using by US EPA baseline in-use emission rates which is divided line-haul and switch mode. The calculated HC emissions on the railroad diesel vehicles are 1,209.1 t from Korean railroad lines.

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Characteristics of Volatile Organic Compounds from Newly Produced Building - Apartment House

  • Lee, Jeong-Joo;Kim, Jeong-Ho;Kim, Shin-Do
    • Proceedings of the Korean Environmental Health Society Conference
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    • 2004.06a
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    • pp.223-226
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    • 2004
  • Building materials emit high concentration volatile organic compounds(VOCs), formaldehyde(HCHO) and other hazardous air pollutants(HAPs) to indoor environment. Average value of VOCs and HCHO emission concentration were $3,770\;{\mu}g/m^3$, $430\;{\mu}g/m^3$ in newly buildings, respectively. VOCs and HCHO emission characteristic are high emission level at initial time and decreased in course of time.

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