| 摘要: | 台灣位於歐亞板塊邊緣擁有豐富的溫泉資源，隨著國民休閒養生意識提升，溫泉的利用方式不再只是單純的浸泡，尚有美容妝品、療養、養生、農耕、食品、養殖等，溫泉的運用方式更加多元化，甚至有溫泉住宅的產生。溫泉的取得方式，在溫泉區除了自然湧出外，亦有鑿井取得溫泉水的方式，在非溫泉區亦有透過鑿井取得溫泉水，因此對於溫泉的水質管制顯得更為重要。本研究整理台灣北部溫泉重金屬資料與環保署地下水重金屬資料，針對溫泉中之鎘、鉻、鉛、鋅、銅、汞、鎳、砷八種重金屬，利用統計方法Z檢定，分別對此八種重金屬之平均濃度進行差異性比對。鎘、鉻、汞三個元素於溫泉與地下水皆無測得，故不進行比對，其餘元素分析結果顯示溫泉中之砷、鉛、鋅、鎳的濃度與地下水環境的濃度有顯著差異，而溫泉中之銅的濃度則無顯著差異。因此，建議未來溫泉水排放仍應加以管制，以降低溫泉水中重金屬汙染地面水體的風險。
Taiwan locates at the boundary of Eurasian Plate, and has rich hot-spring resources. The utilization of hot spring can be not merely hot spring bathing. As the national awareness of leisure and health preservation has been prompted, hot spring has been developed to a widely diversified fields, including cosmetics, treatments, health preservation, agriculture, food products, aquaculture and even hot spring housing. In hot-spring areas, the hot spring may raise up as it does while it also can be obtained by drilling wells. Even in non-hot-spring areas, hot spring may be obtained through drilling wells. The control management of hot spring water quality thus appears to be critical. The research has gathered the heavy-metal data of hot springs in Northern Taiwan and the data of ground-water heavy metals from EPA. Z-test is applied to compare the values of average concentration rate of Cd, Cr, Pb, Zn, Cu, Hg, Ni and As. Due to the fact that Cd, Cr and Hg are not found in the hot spring nor in the ground water, these three elements are not taken for further comparison. The result shows the concentration rates of As, Pb, Zn and Ni in hot spring are significantly related to their rates in ground water. Meanwhile, the concentration rate of Cu in hot spring has no significant difference. As a result, it is advised to control hot spring water discharge in order to minimize the risk of heavy-metal pollution from hot spring to surface water. |
