Impact on gadolinium anomaly in river waters in Tokyo related to the increased number of MRI devices in use.
Impact on gadolinium anomaly in river waters in Tokyo related to the increased number of MRI devices in use.
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DOI：
10.1016/j.marpolbul.2020.111148
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发表时间：
2020-05
影响因子：
5.8
通讯作者：
Kazumasa Inoue;M. Fukushi;A. Furukawa;S. Sahoo;N. Veerasamy;Ken Ichimura;S. Kasahara;M. Ichihara;Mizuho Tsukada;M. Torii;Manami Mizoguchi;Yoshiaki Taguchi;S. Nakazawa
中科院分区：
文献类型：
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作者：
Kazumasa Inoue;M. Fukushi;A. Furukawa;S. Sahoo;N. Veerasamy;Ken Ichimura;S. Kasahara;M. Ichihara;Mizuho Tsukada;M. Torii;Manami Mizoguchi;Yoshiaki Taguchi;S. Nakazawa
磁共振成像中使用的钆基造影剂难以通过通常的污水处理技术去除，并且它们从废水处理厂的排放物中进入河流。河流中的Gd异常被认为取决于Gd基造影剂的使用量。在这项研究中，在东京的河流中的Gd异常的变化进行了测定，通过比较以前报道的值。人为Gd的范围为0.1-138.8 ppt，平均值为35.5 ppt（n= 40），特别是废水处理厂所在地的不同，人为Gd发生了显著变化，测量结果显示，与22年前相比，Gd异常值显著增加了5.0-6.6倍。这项研究强调了在为医疗实践制定新的公共政策方面进行持续研究的必要性。
The Gd-based contrast agents utilized in magnetic resonance imaging are difficult to remove by usual sewage treatment technology, and they enter rivers in the discharges from waste water treatment plants. Gd anomaly in rivers has been considered depends on used amount of Gd-based contrast agents. In this study, variation of Gd anomaly in rivers of Tokyo was determined by comparisons to previously reported values. The range of anthropogenic Gd was 0.1–138.8 ppt with an average value of 35.5 ppt (n= 40); in particular, the anthropogenic Gd was significantly changed depending on the location of the waste water treatment plants, and the measurement revealed significant increases in the Gd anomaly in the range of 5.0–6.6 times compared to data obtained 22 years ago. This study highlights the necessary of continuous research in setting new public policies for medical practices.