Department of Biological Sciences, California State University, Long Beach, California 90840, United States.
Environ Sci Technol. 2012 Apr 3;46(7):3731-6. doi: 10.1021/es203598r. Epub 2012 Mar 19.
The Fukushima Daiichi Nuclear Plant, damaged by an earthquake and tsunami on March 11, 2011 released large amounts of (131)I into the atmosphere, which was assimilated into canopy blades of Macrocystis pyrifera sampled from coastal California. The specific activity calculated to the estimated date of deposition/assimilation ranged from 0.6 to 2.5 Bq gdwt(-1), levels greater than those measured from kelps from Japan and Canada prior to the release. These (131)I levels represent a significant input into the kelp forest ecosystem. Canopy-forming kelps are a natural coastal dosimeter that can measure the exposure of the coastal environment to (131)I and perhaps other radioisotopes released from nuclear accidents. An organizational mechanism should be in place to ensure that they are sampled immediately and continuously after such releases.
2011 年 3 月 11 日地震和海啸袭击了福岛第一核电站，大量的 (131)I 被释放到大气中，随后被加利福尼亚沿海的巨藻叶片所吸收。从释放前取自日本和加拿大的巨藻样本中测量到的特定活动的估算日期为 0.6 至 2.5 Bq gdwt(-1)，这一水平高于放射性碘释放前从巨藻中测量到的水平。这些 (131)I 水平代表了对巨藻林生态系统的重大投入。冠层状巨藻是一种天然的沿海剂量计，可以测量沿海环境对 (131)I 和其他可能从核事故中释放的放射性同位素的暴露程度。应建立组织机制，确保在这些释放后立即并持续对其进行采样。
