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Lee, Myong-In
Climate-Environment Modeling Lab
Research Interests
  • Climate Change, Seasonal Prediction, Extreme Weather, Aerosol

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Numerical Modeling for the Accidental Dispersion of Hazardous Air Pollutants in the Urban Metropolitan Area

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dc.contributor.author Kim, Ganghan ko
dc.contributor.author Lee, Myong-In ko
dc.contributor.author Lee, Seunghee ko
dc.contributor.author Choi, Sung-Deuk ko
dc.contributor.author Kim, Sung-Joon ko
dc.contributor.author Song, Chang-Keun ko
dc.date.available 2020-07-14T06:03:25Z -
dc.date.created 2020-07-10 ko
dc.date.issued 2020-05 ko
dc.identifier.citation ATMOSPHERE, v.11, no.5, pp.477 ko
dc.identifier.issn 2073-4433 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/33081 -
dc.description.abstract A numerical simulation system is developed to predict the dispersion of hazardous air pollutants (HAPs) over a populated city due to accidental release. Ulsan, as one of the megacities in Korea, is chosen as an ideal testbed for the simulation, as it is located in complex terrain and hosts a national industrial complex on the outskirts of the city. The system is based on the California puff model (CALPUFF) for simulating a HAP's dispersion, in which the three-dimensional atmospheric circulation derived from the observed weather station data is specified at a fine horizontal resolution of 200 m. A test scenario is developed for the accidental release of benzene during the daytime and nighttime, respectively, by a fictitious explosion of a storage container, and the injection amount is determined arbitrarily yet comparable to those in the past accidents. In attempting a quantitative assessment and zoning the level of potential risk over the impacted area, multiple simulations have been conducted each day with different hourly varying meteorological conditions in August. The dispersion characteristics of the air pollutant depend largely on the local wind patterns that vary substantially from day to day. Nevertheless, the composite analysis sufficiently identifies the impacted area by the HAP's dispersion due to the local prevailing wind such as the land-sea breeze circulation. An immediate hazardous area is determined based on the vulnerability map constructed by zoning the level of risk determined by the spatial distribution of the HAPs' concentration and the harmfulness standard to the human body. ko
dc.language 영어 ko
dc.publisher MDPI ko
dc.title Numerical Modeling for the Accidental Dispersion of Hazardous Air Pollutants in the Urban Metropolitan Area ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85085361352 ko
dc.identifier.wosid 000541801900105 ko
dc.type.rims ART ko
dc.identifier.doi 10.3390/atmos11050477 ko
dc.identifier.url https://www.mdpi.com/2073-4433/11/5/477 ko
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