Title :
Assessment for Environmental Health of Small-Scale Water Supply Source Based on Triangular Fuzzy Technology
Author :
Renjian, Deng ; Hongtao, Ling ; Bozhi, Ren ; Saijun, Zhou
Author_Institution :
Key Lab. for Constr. Process, Quality & Safety, Hunan Univ. of Sci. & Technol., Xiangtan, China
Abstract :
Employing the triangular fuzzy technology, the article establishes a health risk assessment model for small scale water supply source. By using this model not only the value of probable risk indexes of specific substance influencing people´s health but also their corresponding membership degrees (or relative confidence levels) can be obtained. The model is applied to assess the environmental health risk of the small-scale water supply source in South-west of China. The result shows : the cancerous risk indexes caused by As and the total risk reach 2.01~4.05 × 10-4a-1 and 2.19~4.14 × 10-4a-1 respectively, exceeding the acceptable levels recommended by ICRP(5.0×10-5a-1); the non-cancerous risk indexes caused by all pollutions are 1.58~3.36×10-8a-1, less than the acceptable levels recommended by ICRP. The research shows that it is feasible to assess water health risk by the triangular fuzzy technology.
Keywords :
fuzzy set theory; health care; risk management; water pollution; water quality; water resources; water supply; China; cancerous risk indexes; environmental health assessment; health risk assessment; pollutions; probable risk indexes; small-scale water supply source; triangular fuzzy technology; risk assessment of environmental health; small-scale water supply source; triangular fuzzy technology;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2010 International Conference on
Conference_Location :
ChangSha
Print_ISBN :
978-0-7695-4286-7
DOI :
10.1109/ICDMA.2010.387