Chemical Accident Hazard Assessment by Spatial Analysis of Chemical Factories and Accident Records in South Korea

Heo S, Kim M, Yu H, Lee W-K, Sohn JR, Jung S-Y, Moon KW, & Byeon SH (2017). Chemical Accident Hazard Assessment by Spatial Analysis of Chemical Factories and Accident Records in South Korea. International Journal of Disaster Risk Reduction DOI:10.1016/j.ijdrr.2017.09.016. (In Press)

[img] Text
1-s2.0-S2212420917302352-main.pdf - Accepted Version
Restricted to Repository staff only until 11 September 2019.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (0B)

Abstract

This study identified the potential chemical accident occurrence in Korea by analyzing the spatial distribution of chemical factories and accidents. The number of chemical factories and accidents in 25-km2 grids were used as the attribute value for spatial analysis. First, semi-variograms were conducted to examine spatial distribution patterns and to identify spatial autocorrelation of chemical factories and accidents. Semi-variograms explained that the spatial distribution of chemical factories and accidents were spatially autocorrelated. Second, the results of the semi-variograms were used in Ordinary Kriging to estimate chemical hazard levels. The level values were extracted from the Ordinary Kriging result and their spatial similarity was examined by juxtaposing the two values with respect to their location. Six peaks were identified in both the factory hazard and accident hazard estimation result, and the peaks correlated with major cities in Korea. Third, the estimated two hazard levels were classified with geometrical interval and could be classified into four quadrants: Low Factory and Low Accident (LFLA), High Factory and Low Accident (HFLA), Low Factory and High Accident(LFHA), and High Factory and High Accident (HFHA). The 4 groups identified different chemical safety management issues in Korea; safe LFLA group, many chemical reseller factories were found in HFLA group, chemical transportation accidents were in the LFHA group, and an abundance of factories and accidents were in the HFHA group. Each quadrant represented different safety management obstacles in Korea, and studying spatial differences can support the establishment of an efficient risk management plan.

Item Type: Article
Uncontrolled Keywords: chemical accident; hazard; spatial analysis; safety management; classification
Research Programs: Ecosystems Services and Management (ESM)
Depositing User: Luke Kirwan
Date Deposited: 11 Sep 2017 06:18
Last Modified: 11 Sep 2017 06:20
URI: http://pure.iiasa.ac.at/14812

Actions (login required)

View Item View Item

International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1, A-2361 Laxenburg, Austria
Phone: (+43 2236) 807 0 Fax:(+43 2236) 71 313