The characteristics of concentration variations for dust, O3, and its precursors in Busan, South Korea were analyzed on the basis of pollution data from 19 stations during 2005. The objectives of these analyses were (i) to observe the ozone precursor concentrations under various conditions, (ii) to examine the mechanism of high [O3] episode development, (iii) to examine the formation of photochemical aerosols, (iv) to observe the spatial distribution of high [O3] occurrence over time, and (v) to observe the spatial distributions of temperature and wind speed over the whole_x000D_ area of Busan on high [O3] episode days. The ratio of initial [NO2] to initial [NO], O3 dosage, and O3 formation/hazard potential were established as relevant parameters on which to base allocation of monitoring stations according to each regional type, and criteria based on these parameters were determined for reallocating stations over the Busan area according to various regional types based on monitoring purposes. It was found that the current allocations of stations_x000D_ for investigating photochemical pollution do not reflect the areas where high O3 occurs and areas where it is desirable to measure O3 and its precursors flowing out of the target area. Therefore, based on these criteria, reallocated monitoring stations according to each regional type were suggested.

Ozone Precursor VOCs Nitrogen Oxides Photochemical Air Pollution Monitoring Network Allocation of Photochemical Monitoring Station

Annual Report of Ambient Air Quality in Korea, Ministry of Environment (2006)
Chou CCK, Liu SC, Lin CY, Shiu CJ, Chang KH, Atmo. Env., 40, 3898 (2006)
Shiu CJ, Liu SC, Chang CC, Chen JP, Chou CCK, Lin CY, Young CY, Atmo. Env., 41, 9324 (2007)
WHO, Health aspects of air pollution, World Health Organization (2004)
Leighton PA, Photochemistry of air pollution, Academic Press, New York (1961)
Chen TF, Chang KH, Atmo. Env., 40, 1816 (2006)
Zhang YH, Su H, Zhong LJ, Cheng YF, Zeng LM, Wang XS, Xiang YR, Wang JL, Gao DF, Shao M, Fan SJ, Liu SC, Atmo. Env., 42, 6203 (2008)
Dodge MC, Combined use of modeling techniques and smog chamber data to derive ozone-precursor relationships. International conference on photochemical oxidant pollution and its control: Proceedings, Vol. B, US EPA, Research Triangle Park, NC (1977)
Park OH, J. Kor. Soc. Env. Eng., 7, 1 (1985)
Yoo EC, Study on the spatial distribution of air pollution and the improvement of monitoring networks in Busan, Ph.D. Thesis, Pusan National University (2008)
Jenkin ME, Clemitshaw KC, Atmo. Env., 34, 2499 (2000)
Chang SC, Lee CT, Atmo. Env., 41, 4002 (2007)
Oh IB, Kim YK, Lee HW, Kim CH, Atmo. Env., 40, 1284 (2006)
Lee SH, Kim YK, Kim HS, Lee HW, Atmo. Env., 41, 4451 (2007)