頁籤選單縮合
題名 | Tracing the Hazards--The Substance Flow Analysis of Dioxins |
---|---|
作者 | Ma, Hwong-wen; Hung, Ming-lung; Hung, Huie-lun; Chao, Chia-wei; | 書刊名 | Journal of Environmental Engineering and Management |
卷期 | 18:1 2008.01[民97.01] |
頁次 | 頁75-84 |
分類號 | 445.6 |
關鍵詞 | Dioxins; Substance flow analysis; CalTOX; Uncertainty analysis; |
語文 | 英文(English) |
英文摘要 | Dioxins have caused numerous toxic and pollution incidents in Taiwan, where the management of dioxins has been focused mainly on the establishment of emission standards and inventory. The currently applied approach features source reduction and monitoring of annual emission trend of dioxins, but the comprehensiveness of management still needs to be enhanced, in addition to the insufficient understanding about the distribution of dioxins in the environment. This study employed the material flow analysis to simulate overall distribution of dioxins in Taiwan and incorporated the uncertainty analysis to take the uncertainty of each parameter into account, so as to improve the precision of estimation on dioxin distribution. In addition, CalTOX multi-media model was utilized to assess the distribution of dioxins emitted from the economical activities into the environment. The research findings revealed that in 2003, dioxins emission from the anthroposphere in Taiwan was about 2480 g I-TEQ. By average, about 10.3% was released to the atmosphere, 88.6% to waste, 0.9% to soil, and others to water body. The industrial emission was the most significant, with municipal waste incinerator taking up the leading position of about 87%, followed by arc furance. Moreover, emitted dioxins would undergo transport and distribution in the environment and mostly reside in the soil media. The management strategies should be expanded to consider the dioxins from various sources and in various environmental media in a more effective and efficient way. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。