Resumen:
Following the recent accident at the Fukushima Daiichi nuclear power plant in Japan, radioactive contamination was observed near the reactor site. As a contribution towards the understanding of the worldwide impact of the accident, we collected fallout samples in Cienfuegos, Cuba, and examined them for the presence of above normal amounts of radioactivity. Gamma ray spectra measured from these samples showed clear evidence of fission products I-131 and Cs-137. However, the fallout levels measured for these isotopes (135 +/- A 4.78 mBq m(-2) day(-1) for I-131 and 10.7 +/- A 0.38 mBq m(-2) day(-1)for Cs-137) were very low and posed no health risk to the public. The doses received as consequence to the Fukushima fallout by the Cienfuegos population's (0.002 mSv per year) don't overcome the limit of dose (1 mSv per year) fixed for the public in Cuba.
