"1" . "2018-02-12 16:53:18.0" . "SDN:P07::17YDB182" . . "accepted"@en . "radioactivity_concentration_of_130mSb_in_air"@en . "2018-02-12 16:53:18.0" . . . "false" . "SDN:P07::17YDB182" . . . . "1" . "SDN:P07::17YDB182" . "\"Radioactivity\" means the number of radioactive decays of a material per second. \"Radioactivity concentration\" means radioactivity per unit volume of the medium. \"Sb\" means the element \"antimony\" and \"130mSb\" is the metastable state of the isotope \"antimony-130\" with a half-life of 4.58e-03 days."@en . "" .