2004-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/705943摘要：本計劃是一個為期二年與汞有關的研究計劃，主要是探討汞在東海陸棚海域的生地化循環及海氣交換的情形。利用密集觀測及實驗整合的手法，亦即結合野外、實驗室及生地化模式模擬，以東海海域作為一個實驗場，來了解汞在大陸、海洋交界邊緣海域的循環及交換的作用。主要目的是不僅可增加了解汞在東海陸棚海域的生地化特性，更可清楚知道元素汞現場生成的成因、海氣交換循環的角色及其可能對環境的影響。因此，研究策略首先是小心診斷汞及其各物種的分布、循環及人為污染輸入的評估，尤其是從大陸沿岸河口的河川及大氣沉降的輸入，進而探討控制汞物種轉型作用的因子例如控制元素汞生成的過程作用及機制。長期累積的觀測資料有助我們發展一個生地化及物理水文結合的模式來模擬及預測汞在東海海域的搬運及循環模式。最後，可成功地將研究結果應用到其他相似的邊緣海域，並提供政府單位有個有效及準確的環境決策方針。 <br> Abstract: A two-year project to investigate mercury (Hg) emissions and cycling in the East China Sea (ECS) was initiated since 2004. We are planning a comprehensive examination of Hg in the continental margins using a combining experimental design (i.e, field and laboratory investigations with a theoretic modeling). Our general goal is to increase understanding of Hg biogeochemistry in East China Sea Shelf. Special attention will be given to understand the role and assessing environmental impact of in-situ elemental Hg (Hg0) production and emissions on the aquatic and atmospheric cycle. Thus, the objectives carefully examine the cycling of Hg and its species, and assess the impact of anthropogenic inputs, especially from the China rivers and atmospheric inputs (e.g., rain and dust) related to the production of Hg0. Over the long-term observation, we expect to incorporate these multi-media data into a biogeochemical Hg cycling and mixing model for the ECS. The results will finally allow to be applicable to other similar coastal environments and to be further served as a decision tool for future environmental policy.汞循環汞逸散汞生地化大陸邊緣海東海Hg cyclingHg emissionsHg biogeochemistryContinental marginEast China Sea