In March, 2011, large amounts of radioactive materials were released from the Fukushima Daiichi nuclear power plant after the nuclear accident. Especially, for humans, internal exposure to ¹³⁷Cs and ⁹⁰Sr radionuclides presents very high risks because of their very long physical half-lives (¹³⁷Cs: 30.2 years, ⁹⁰Sr: 28.
View Article and Find Full Text PDF