The estimation of CO concentration in Daegu-Gyeongbuk area using GEV distribution

- Journal title : Journal of the Korean Data and Information Science Society
- Volume 27, Issue 4, 2016, pp.1001-1012
- Publisher : Korean Data and Information Science Society
- DOI : 10.7465/jkdi.2016.27.4.1001

Title & Authors

The estimation of CO concentration in Daegu-Gyeongbuk area using GEV distribution

Ryu, Soorack; Eom, Eunjin; Kwon, Taeyong; Yoon, Sanghoo;

Ryu, Soorack; Eom, Eunjin; Kwon, Taeyong; Yoon, Sanghoo;

Abstract

It is well known that air pollutants exert a bad influence on human health. According to the United Nations Environment Program, 4.3 million people die from carbon monoxide and particulate matter annually from all over the world. Carbon monoxide is a toxic gas that is the most dangerous of the gas consisting of carbon and oxygen. In this paper, we used 1 hour, 6 hours, 12 hours, and 24 hours average carbon monoxide concentration data collected between 2004 and 2013 in Daegu Gyeongbuk area. Parameters of the generalized extreme value distribution were estimated by maximum likelihood estimation and L-moments estimation. An evalution of goodness of fitness also was performed. Since the number of samples were small, L-moment estimation turned out to be suitable for parameter estimation. We also calculated 5 year, 10 year, 20 year, and 40 year return level.

Keywords

Carbon monoxide;generalized extreme value distribution;l-moments;MLE;return level;

Language

Korean

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