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. 2019 Oct 24;16(21):4094. doi: 10.3390/ijerph16214094

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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The ⁹⁰Sr/¹³⁷Cs activity ratios in the environment and the FDNPP site. The ⁹⁰Sr/¹³⁷Cs activity ratio in seawater near the FDNPP was consistent with those from the monitoring points, T1 and T2 [12]. Soil [4] and sediment [24] samples had extremely low ⁹⁰Sr/¹³⁷Cs activity ratios.