도시 자동차도로 터널 내부의 대기오염도 공간분포 특징 = Spatial Distribution of Air Pollution Level inside Roadway Tunnels in Urban Area

다국어 초록 (Multilingual Abstract)

Air pollution levels of gases and aerosol particles inside the Jeongneung and Hongjimun tunnels of the Naebu express way in Seoul were investigated through on-road measurement using a mobile emission laboratory (MEL) on February 8, 2011. The concentrations of NOx, CO2, number concentration of particles ranging 21-560 ㎚, and surface area of particles deposited on a human lung almost linearly increased with increasing distance from the tunnel entrance, and decreased rapidly before the tunnel exit. This trend was observed regardless of tunnel length and driving directions, which thought to be caused by semi-transverse ventilation facilities of the tunnels. The concentration increments per 1-m distance for NOx, CO2, deposited particle surface area, and number of particles ranging 21-560 ㎚ were 0.61~0.80 ppb, 0.16~0.21 ppm, 0.20~0.29μ㎡/㎤, and 117~192 particles/㎤, respectively. Average pollution levels inside the two tunnels for CO2, deposited particle surface area, and number of particles >5.6 ㎚ ranged 681~748 ppm, 246~381μ㎡/㎤, and 2.4~6.7×105 particles/㎤, respectively. In case of NOx, the maximum concentration exceeded 1 ppm. These pollution levels inside the tunnels are much higher than those at urban background sites. This result can be utilized as basic data to evaluate the effectiveness of present ventilation system for reducing the pollution level caused by vehicles inside the tunnels.

참고문헌 (Reference)

1 이승복, "서울시 노원구 도로상 극미세입자 오염도 공간분포 특징" 한국입자에어로졸학회 7 (7): 21-30, 2011

2 정유란, "도시 - 전원간 이산화탄소(CO2) 농도구배 예비관측 결과" 한국농림기상학회 9 (9): 268-276, 2007

3 Statistics Korea, "Status of Roadway Bridges and Tunnels"

4 Ministry of Construction & Transportation, MOCT, "Rules about the Road Structure and Facilities Standards, pp. 32"

5 Sturm, P. J., "Roadside measurements of particulate matter size distribution" 37 : 5273-5281, 2003

6 Shin, H. J., "Research on Estimation of the Optimal Ventilation Rate according to Types of Roadway Tunnels and Construction of Ventilation System by Stages, Report to Korea Highway Corporation, OTKHRK040650" 2000

7 Kang, Y. H., "Reduction Strategy for Air Pollutants Emitted from Vehicles during Driving inside Tunnels, Report RE-22" 2003

8 Kristensson, A., "Real-world traffic emission factors of gases and particles measured in a road tunnel in Stokholm, Sweden" 38 : 657-673, 2004

9 Gouriou, F., "On-road measurements of particle number concentrations and size distributions in urban and tunnel environments" 38 : 2831-2840, 2004

10 Kirchstetter, T. W., "On-road measurement of fine particle and nitrogen oxide emissions from light-and heavy-duty motor vehicles" 33 : 2955-2968, 1999

11 Ghim, Y. S., "Measurements of gaseous pollutants in major tunnels in Seoul" 9 (9): 320-328, 1993

12 Baek, S. -O., "Measurement of volatile organic compounds concentrations in the air of a highway tunnel" 14 (14): 73-77, 1998

13 Jeong, C.-H., "Inter-comparison of a fast mobility particle sizer and a scanning mobility particle sizer incorporating an ultrafine water-based condensation particle counter" 43 (43): 364-373, 2009

14 He, L. Y., "Fine particle emissions from on-road vehicles in the Zhujiang tunnel, China" 42 : 4461-4466, 2008

15 Jamriska, M., "Diesel bus emissions measured in a tunnel study" 38 (38): 6701-6709, 2004

16 Funasaka, K., "Characteristics of particulates and gaseous pollutants in a highway tunnel" 102 : 171-176, 1998

17 Lee, G., "Characteristic behavior of peroxyacetyl nitrate (PAN) in Seoul megacity, Korea" PERGAMON-ELSEVIER SCIENCE LTD 73 : 619-628, 200809

18 Ntziachristos, L., "Application of a diffusion charger for the measurement of particle surface" 41 : 571-580, 2007

19 Ministry of Environment, MOE, "Annual Report of Air Quality in Korea 2009" National Institute of Environmental Research 2010

20 Morawska, L., "Ambient nano and ultrafine particles from motor vehicle emissions : Characteristics, ambient processing and implications on human exposure" 42 (42): 8113-8138, 2008

21 Weingartner, E., "Aerosol emission in a road tunnel" 31 (31): 451-462, 1997

22 Ma, C. -J., "A case study of the single and size-resolved particles in roadway tunnel in Seoul, Korea" 38 : 6673-6677, 2004