Assessment of Sr-90, Cs-137, Natural Radionuclides and Metals in Marine Fish Species Consumed in the City of São Paulo – Brazil

The aim of this study is to quantify the concentration of the ⁹⁰Sr, ¹³⁷Cs, natural radionuclides (²¹⁰Pb, ²²⁶Ra and ²²⁸Ra) and metals (As, Co, Cs, Rb, Se, Th, U and Zn) in the flesh of marine fish species most consumed in São Paulo city. The radionuclides and metals concentration were low (but close to the level of detection) or below the MDA of gamma spectrometry, liquid scintillation counting and instrumental neutron activation analysis. The radionuclides and metals concentrations are below limit adopted by the Brazilian Regulatory Agency.