Alle Angebote für dieses Produkt
Meistverkauft in Sprache & Literatur
Über dieses Produkt
- KurzbeschreibungChlorination has been the major strategy for disinfection of drinking water in Taiwan. But it accompanied the disinfection by-products (DBPs) question that exist the cancer risk for human being. Trihalomethanes (THMs) species is the main DBPs in drinking water treatment; they had verified carcinogenic materials in animal experiment and epidemiology investigation consequences respectively. In view of this reason, this study would like to discuss the distribution situation of THMs species in Taiwan. This research is a procedure combined the statistical analysis that THMs species data used in this study collected from the Taiwan Water Corporation (TWC) since 1998 to 2002, evaluated the distribution at temporal-spatial factors in treatment plant and subscriber of Taiwan.<br>Cancer risk analysis and assessment is the next tropic after statistical analysis. It processed the hazardous identification, dose-response assessment, exposure assessment and risk characterization procedure to interpret the cancer risk condition of THMs species in Taiwan. Finally, System Dynamic Model is the principal role to integrate with social, economic influence parameters and cancer risk assessment to process the preliminary analysis about the relation between water price and cancer risk. We wish the procedure can become a method for policy analysis, which is our contribution in the research.<br>Explicitly, the objective of this study classified to evaluate the temporal-spatial factors of THMs species concentration in the distribution situation of Taiwan. A multiple regression model for THMs formation was generated for predicting THMs in the finished water. An interaction was observed between the pH, water temperature and THMs formation. The increasing values of pH and temperature are lead to a higher production of THMs. Consequence exhibited that Taiwan is conformed to the tendency.<br>This study conducts risk assessment for an array of health effects that may result from exposure to DBPs, and that require an analysis of the relationship between exposure and health-related outcomes. THMs species have been verified the principal DBPs in the process on the disinfection of drinking water. Consequence of epidemiology and animal studies exhibited THMs species are carcinogens caused the perspective cancers of bladder, colon, rectum and liver etc. Multistage of Benchmark model, Monte Carlo Simulation (MCS) and sensitive analysis were utilized to estimate the cancer risk analysis and assessment respectively.<br>This study integrated the risk assessment steps of DBPs of THMs in the drinking water formulated by USEPA with society and economical policy influence parameters in the Tai-Chung city of Taiwan
- AutorI-Yen Yeh
- Seiten148 Seiten
- Gewicht205 g
Dieser Artikel gehört nicht auf diese Seite.
Vielen Dank. Wir kümmern uns darum.