Development of environmental impact reduction technology related to MRI gadolinium contrast agent

2023 Fiscal Year Final Research Report

• Project/Area Number: 19H04304
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 64020:Environmental load reduction and remediation-related
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Inoue Kazumasa 東京都立大学, 人間健康科学研究科, 教授 (20508105)
• Co-Investigator(Kenkyū-buntansha): 福士 政広 東京都立大学, 人間健康科学研究科, 客員教授 (70199199)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: ガドリニウム造影剤 / MRI / 希土類元素

Outline of Final Research Achievements

The environmental dynamics of gadolinium contrast agents were investigated in treated water from water reclamation centers, river water, and tap water in Tokyo. Gadolinium contrast agents were not removed by current sewage treatment and were discharged into rivers. It was suggested that some of the released gadolinium contrast agent may have passed through the water treatment plant and ended up in the tap water.

Free Research Field

環境動態解析

Academic Significance and Societal Importance of the Research Achievements

大都市部におけるガドリニウム造影剤の環境動態を明確化することは、今後の環境負荷低減技術の検討において有用となる。