• Journal of Environmental Health Sciences
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• v.41 no.2
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• pp.71-81
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• 2015

Objectives: Photochemical ozone pollution is associated with increased mortality risk. This study aims to assess the population exposure to ozone according to population characteristics for high ozone days in the Busan metropolitan region (BMR). Methods: The ozone exposure assessment in this study was performed using the WRF-CMAQ simulated ozone concentrations and the population data in the BMR. The settled and daytime population and their activity were considered to conduct the static and dynamic ozone exposure assessment. Results: Applying a static exposure assessment, in case that high ozone occurred throughout Busan area, the highest exposure levels were evaluated in urban neighborhoods. In case of ozone pollution in outer Busan, because sensitive groups have been relatively higher exposure, this case was also evaluated as part of that should not be overlooked. The dynamic exposure was higher than static exposure because the number of population exposed to ozone of high concentration is increased. This approach is important in a regard consider that daytime population distribution when high ozone occur. Conclusion: This study shows the different population exposure according to various ozone distributions for each episode day. Considering demographic characteristic such as population density and activity should be important to understanding the population exposure assessment when ozone pollution occurs.

• Proceedings of the KIEE Conference
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• 2003.10a
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• pp.239-241
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• 2003

The development of industry environment honored dust matter is diversify industry part eliminate the source of pollution besides usually life in and around pollution by livestock farming pollution matter and pollution by used agricultural medicines particular eutrophic of in and around a reservoir present of occurrence accelerate. The paper is a study of dissolved characteristics by ozone contactor type and ozone generated quantity.

• Journal of Environmental Science International
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• v.5 no.3
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• pp.265-275
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• 1996

Air pollution characteristics and the influence of sea breeze on surface ozone concentration were studied using the data measured at 7 air quality continuous monitoring stations from June to September using 3 years (1990, 1993, 1994) in Pusan coastal area. Among the 246 sea breeze days for research Period, there were approximately 89 sea breeze days (36%) from lune to September, And there were 120 the episode days (68%) of ozone greater than or equal to 60 ppb in summer season. In 89 sea breeze days, the episode day was highly marked as 56 days (63%). So, we knew that the sea breeze greatly affects the occurence of ozone episode day. the ozone concentration under the condition of the sea breeze increase about 40% in the daytime. Frequencies distribution of $O_3$ concentration for sea breeze moved toward high concentration class. The characteristics of ozone concentration in relation to meteorological conditions of sea breeze is significant because we can discover major weather factors for eastablishing an air pollution- weather forecast system. For further. study about meterological approach method for photochemical air pollution, it is necessary to explain the characteristics of atmosphere below 1, 000 m, especially concerning the formation mechanism of inversion layers. And finally, we will study the relationships to synoptic weather conditions and vertical structure and diurnal variation of local wind systems including sea breeze, and the vertical movements of atmosphere in the city.

• Journal of the Korean Solar Energy Society
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• v.31 no.5
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• pp.47-59
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• 2011

The purpose of this paper is to simulate the high ozone concentration in Shiwha Banwol indusrial complex. High pollution episodes (ozone alert) of this area are the results of geographical location and its air pollutants emission. This research has used meteorological model (RAMS) and photochemical air pollution Model (CIT model). As first step of the evaluate of this combined model system simulations are done in terms of meteorological characteristics like wind fields, PBL-height, etc.. Numerical simulations are carried out with real meteorological synoptic data on June. 24-25, 2010. In comparison with real measurement and another research the model reflects well local meteorological phenomena and shows the possibility to be utilized to analyse the pollutant dispersion over irregular terrain region. The high ozone concentration is deeply correlated to the ambient air temperature, wind speed and solar radiation. Local meteorological phenomena like sea-land breeze impact on horizontal dispersion of ozone. This analysis of meteorological characteristics can, in turn, help to predict their influences on air quality and to manage the high ozone episodes.

• Journal of the Korean Institute of Landscape Architecture
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• v.28 no.5
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• pp.87-92
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• 2000

The purpose of this study is to investigate Ozone which we have to contact in our daily lives. Recently Ozone becomes a serious pollutant in the inside and outside. To select th indicator plants or the purifier plants for air pollution caused by ozone, this stud has been conducted with interior landscape plant of 10 species. The results are as follows; 1) The visible demage by Ozone was firstly observed on Viburnum awabuki among 10 species, and it occurred after the lapse of 10, 8 and 4 hours on 0.5, 1.0 and 2.0 ppm ozone treatment, respectively. The first symptom of visible demage appeared on chlorosis or blotting of leaves, then progressed on necrosis of leaves. 2) On the other hand, Litsea japonica and Ardisia japonica were so resistant against Ozone fumigation that they were not demage independently of Ozone concentration till the lapse of 60 hours. 3) Chlorophyll contents were decreased by the increased Ozone concentration. At this time, grana destruction was observed. The most sensitive plant to ozone was Viburnum awabuki, and we suggest that Viburnum awabuki would be possible one to use for the indicator plant. The most resistance plant to Ozone was Litsea japonic and Ardisia japonica, we suggest that Litsea japonica and Ardisia japonica would be possible to use for the purifier plant for Ozone pollution.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2003.11a
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• pp.11-14
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• 2003

Development pollution control strategies relies on photo-chemical transport models. These models integrate of mesoscale meteorological models with chemical moduls. In this study, the PSU/NCAR mesoscale meteorological model with CAMx is used to investigate the temporal and spatial dynamics of the photochemical air pollution in urban atmosphere of Istanbul for selected high ozone days. The ozone climatology for the selected days and model simulations are presented.

• Journal of Environmental Science International
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• v.6 no.4
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• pp.335-350
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• 1997

Numerical simulations of photochemical air pollution (CBM: Carbon-Bond Mechanisms under a theoretical three-dimensional local wind system are carried to clarify the fundamental characteristics of the effects of local wind on photochemical air pollution. According to the AWS data of Pusan coastal area and KMA, the surface wind of Pusan during summertime showed a very remarkable land and sea breeze circulation. The ozone concentration distribution using local wind model showed that high ozone concentration zone near coastal area moved toward inland In the afternoon. This change implies a sea breeze Increases the ozone concentration, but a land breeze decreases it in Pusan coastal area.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.05b
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• pp.123-124
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• 2003

Fishman and Larson (1987) derived tropical tropospheric column ozone by subtracting stratospheric column ozone measured by the Stratospheric Aerosol and Gas Experiment (SAGE) from total column ozone obtained by the Total Ozone Mapping Spectrometer (TOMS). Later, the Convective Cloud Differential (CCD) method (Ziemke et al., 1998) indicated stratospheric ozone is invariant with longitude and concluded the zonal variation of total ozone determines the zonal variation of tropospheric ozone. (omitted)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1991.11a
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• pp.41-42
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• 1991

• Journal of Environmental Science International
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• v.5 no.4
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• pp.399-410
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• 1996

Pusan is the largest coastal city with a population of about four mi18ion in Korea. Because of increased and confused traffic, photochemical air pollution become a major urban environmental problem recently. The photo-chemical air pollution weather forecasting method preciser than existing air pollution forecast method has been developed to forecast ozone episode days with meteorological conditions using the data measured at 7 air quality continuous monitoring stations from lune to September using 2 years (1994, 1995). The method developed in present study showed higher percentage correct and skill score than existing air pollution forecasting in KMA ( Korea Meteorological Administration).