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Yoojung kim Air Pollution Modeling Lab. Dept. Environmental Engineering, Konkuk Univ.

Yoojung kim Air Pollution Modeling Lab. Dept. Environmental Engineering, Konkuk Univ. Seoul, Korea. Introduce of Konkuk Univ. since 1946 No. of Student : 18,856 (2001) faculty : 590 (2001) The undergraduate school 13 colleges 58 major fields the graduate school

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Yoojung kim Air Pollution Modeling Lab. Dept. Environmental Engineering, Konkuk Univ.

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  1. Yoojung kim Air Pollution Modeling Lab. Dept. Environmental Engineering, Konkuk Univ. Seoul, Korea.

  2. Introduce of Konkuk Univ. • since 1946 • No. of Student : 18,856 (2001) • faculty : 590 (2001) • The undergraduate school • 13 colleges • 58 major fields • the graduate school • 54 major fields on the master's level • 41 major fields on the doctoral level

  3. Introduce of Air Pollution Modeling Lab. • Faculty • Prof. Young Sunwoo • Research • Regional/Local scale air quality • Air pollution modeling, measurement & analysis, EIA • Project • Long-Range Transboundary Air Pollutants In background area (collaboration with 4 Univ.) • Regional air quality measurement 5 stations • Emission inventories for air pollutants (collaboration with 2 Univ.) • Developing on emission factor for anthropogenic VOCs in Korea (ex. Printing, dry cleaning, gas station) • Members • 6 post-graduate collaborator • 9 graduate students

  4. The study of fugitive dust impact under construction • Title • The study of fugitive dust impact under the secondary construction of Inchon International Airport • Purpose • The prediction of fugitive dust concentration on the airport facility & the residence site nearby construction site of the Inchon airport extension and mountain cutting (the source of fill up the field) • The possible abrasion influence for aircraft • Period • Oct. 2002 ~ July 2003 (10 months)

  5. Inchon International Airport runway reclaim field Passenger Terminal Building

  6. Inchon International Airport Map Reclaim land from the sea to build a new airport Main Source(2007) Main Source(2005)

  7. Emission of fugitive dust • Emission • Source • Blasting, Crush Plant • Transit • Paved load, Unpaved load • Reclaimation • Transfer of equipment in the work area, Pre-loading • Emission factor • by EPA, NDC • Critical parameter of Emission factor • silt ratio, wind speed, wet-day per year • Two case • 2005 & 2007 year

  8. Meteorological data & Parameter for Model • Use the ISCST3 (Inderstrial Source Complex) Model • Gaussian model • Useful for non-reaction pollutant • Meteorological data • The data from the AWS at Inchon airport(2001) • Wind direction, wind speed, temp., stability, mixing height • Domain • 13km x 10km • Receptor • Grid (500m by 500m) • Add on the receptor point at Airport facility & residence • Pollutant • PM10 • Annual/24h average conc.

  9. 2005 Annual conc. Contour of PM10

  10. 2007 Annual conc. Contour of PM10

  11. Discussion • In 2005, the level of ambient PM10 conc. would not meet air quality standard • The residence area nearby the source (mountain) In annual/24h average • Air quality standard of PM10 • 70㎛/㎥(annual avg.) and 120㎛/㎥(24h avg.) • In 2007, meet air quality standard at the residence and the airport • Crush Plant is the important source of PM10 • Dust influence for aircraft • Very little reference are available so far • Based on wind-blown dust events experience(100~500㎍/㎥), the level of conc. from the construction (maximum 200㎍/㎥) may not be very critical. • Need further investigation

  12. The study of the Long-range Transboundary Air Pollutant in the background conc. area • Purpose • Building monitoring Network for the long-range transport air pollution in north-east Asia (Korea, China and Japan) • The measurement of air pollutant conc. in remote area • The analysis of the behavior of air pollutant in conjunction with the meteorological analysis • Compilation of monitoring data

  13. The Location of observation site 5 site (Ganghwa, Taean, Geoje, Goseong, Gosan) The Location of observation site

  14. History • 1st project(1995~1999) • The study of the long-range transboundary air pollutant in north-east Asia & collaboration for preservation of Environment • 1st year(1995) • Determination of measurement method at surface station and analysis. • 2nd year(1996) • Continue measurement • Add DMS • meteorological analysis • international research

  15. 3rd year(1997) • Add measurement station(3 in Korea, 1 in China) • Total 7 measurement station • Add PM10 on measurement list • Measurement DMS(at Gosan), MSA(at Ganghwa) & Estimate emission amount • Estimate incoming quantity of air pollutant • 4th year • intensively measurement in 3 period at 6 station • Measurement Every 6 day • Estimate dry deposition • Estimate incoming quantity of air pollutant • Comparison with other country’s data • Enhancing data quality

  16. 2nd project(2000~2003) • The study of the Long-range Transboundary Air Pollutant in the background conc. area • 1st year(2000) • Continue analysis for 1st Project (for four years) • Measurement of aerosol size distribution • VOCs monitoring • Measurement in background area • 2nd year(2001) • Enhancing cooperative network of remote monitoring for better data quality in background area • 3rd year(2002) • Back trajectory Analysis from PM2.5 mass conc. & ionic conc. of soluble property • Intensively measurement of PM2.5 (March, April, December)

  17. MESUREMENT ITEMS • Measurement Categories • PM10, PM2.5, aerosol size distribution, elemental properties, major gas species, VOCs, carbon species and metals • Each category have been measured for once a day • Analysis Categories • Mass conc. (PM10, PM2.5. size distribution) • Water-soluble ionic elements of PM10, PM2.5 • Cl-, NO3-, SO42-, HCl, HNO3, NH3, Na+, NH4+, K+, Mg2+, Ca2+ • Carbon analyze • OC, EC (Organic Carbon, Elemental Carbon) • metals elements • Fe, Al, Ca, K, Na, Mg, S, Zn, Pb, Ti, Mn, Cu, V, Sr, Ni, Ba, Cd, Cr • VOCs • VOCs were detected which based on POCP (Photochemical Ozone Creation Potential) • Measurement period • Three times a year (During consequently 15days-April, 10days-May, 10days-november) • West wind is the prevaily wind direction for spring/fall

  18. ANOVA(p<0.05) : Group Ⅰ(KH,TA, GS), Group Ⅱ(KS, GJ) Characteristics Among Site(2002. March, April, Dec.) Overall PM2.5 mass Group 1 Group ІІ

  19. Define geographical sectors for back trajectory analysis

  20. 2002. 3. 5 2002. 3. 10 Sector Ⅰ Sector Ⅱ Back Trajectory Analysis Among 5 Sites(2002. March, April)

  21. 2002. 4. 22 2002. 4. 27 Sector Ⅲ Sector Ⅳ

  22. Sector Ⅰ(3/5), Ⅱ(3/10) : highest PM2.5 mass conc., Except GJ • Sector Ⅲ (4/22) : lowest PM2.5 mass conc., From south sea PM2.5 mass S І S ІІ S ІІІ S Ⅳ

  23. Plan • Need for quantitative transport analysis • LRT analysis using CTM is required • (ex. STEM) • Mainly focus on aerosols (my interest) • Gas phases modeling will be conducted by one of my colleague. • Initial step for STEM will be a tracer mode for aerosol.

  24. What I did in Iowa • Learning “how to” run MM5 • Learning “how to” import emission data • Learning “how to” run STEM • What I will do in Seoul • Install & Run MM5/STEM • Building cluster system (maybe 5 node or more)

  25. Appreciation • prof. Carmichael, prof. Sunwoo • Dr. Tang, Ms. Tongboonchoo, Dr. Woo, Mr. Hwang, Mr. Jeremie moen, Ms. Frank and thens • Thank you

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