engleski

Radiocesium (Cs-137) in soil-plant-animal continuum on some areas in Bosnia and Herzegovina and Croatia

Radiocesium (Cs-137) is one of the most important artificial radionuclide in environment. Cs-137 was spewed into atmosphere by atomic bomb testing and similar activities. The reactor incident in Chernobyl was mayor radioactive source in eastern part of Europe. Mayor route of Cs-137 entrancing into human food chain is soil-plant-animal continuum. Therefore, it has been investigated Cs -137 radiation on some important sheep raising areas in Bosnia and Herzegovina and Croatia. In period 2002-2004, samples of soil, grasslands, wool, milk of sheep and produced cheese were taken from five localities in Bosnia and Herzegovina, each year. Simultaneously, soil plants and wool were sampled from four localities in Croatia. The highest radiocesium activities were measured in soil samples ranging from 5, 88 to 274, 12 Bq kg-1. Cs-137 activities in other substrates ranged from 0, 32 to 51, 26 Bq kg-1 ; 0, 54 – 12, 97 Bq kg-1 ; 0, 50-5, 08 Bq kg-1, and 2, 42-3, 37 Bq kg-1 for hay, wool, milk and cheese, respectively. Generally, the highest values in almost all samples measured in Central Bosnia region and they increased with altitude what is connected to inhomogenous distribution of rainfalls.

radiocesium ; soil ; plant ; sheep

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