Related Researcher

Author's Photo

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


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

DC Field Value Language Kim, Ganghan ko Lee, Myong-In ko Lee, Seunghee ko Choi, Sung-Deuk ko Kim, Sung-Joon ko Song, Chang-Keun ko 2020-07-14T06:03:25Z - 2020-07-10 ko 2020-05 ko
dc.identifier.citation ATMOSPHERE, v.11, no.5, pp.477 ko
dc.identifier.issn 2073-4433 ko
dc.identifier.uri -
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 ko
Appears in Collections:
UEE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.