A Study on High Ozone Pollution Sources and Influence Factors in Kaohsiung and Pingtung Area

• Main Authors: Chun-Ming Hsu, 許峻銘
• Other Authors: Shizoom Wang
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/99287308511569030811

碩士 === 國立中興大學 === 環境工程學系所 === 100 === Petrochemical industry and heavy industry are major development in Kaohsiung and Pingtung area where suffer serious air pollution. Ozone pollution proportion is getting higher, so this research is study of volatile organic compounds sources which cause high ozone concentration and to explore the impact of meteorological factors. The source of research data in this study is from the air quality monitoring stations and photochemical assessment monitoring stations (PAMs) in Kaohsiung and Pingtung area. First step is to divided the study area according to ozone pollution characteristics. The results can be divided into northern Kaohsiung area and southern Kaohsiung-Pingtung area. It’s showed that the ozone concentration of southern Kaohsiung-Pingtung area is higher than northern Kaohsiung area. Analysis the relationship between ozone concentration and meteorological factors of each districts showed that when higher wind speed (about 2-4 m/s), higher temperature (about 28-30 ℃), wind from the west series that the mainly daytime wind in Kaohsiung and Pingtung area is sea wind, lower relative humidity (about 50-60 %), and higher UV index (about 4-6 UVI), ozone concentration is easily higher than 120 ppb. The principal component analysis of ozone concentration and the concentration of volatile organic compounds showed that the first factor of affecting ozone formation is petrochemical industry emissions, followed by chemical organic solvent, and then mobile emissions and plant emissions. Compared of ozone pollution event and non-event day showed that when the wind speed and temperature gradually increased; relative humidity and concentration of volatile organic compounds gradually decreased, the ozone concentration will be gradually increased. The multiple regression analysis of ozone concentration and its impact factors showed that if we can reduce the concentration of toluene, ethylbenzene, and 1,2,4-trimethylbenzene in Ciaotou station; the concentration of benzene, o-xylene and 1,2,4-trimethylbenzene in Hsiaokang station; the concentration of ethylene, iso-pentane and o-xylene in Chaozhou station, it can effectively control the ozone concentration to get higher.