Environmental monitoring programme of Centro Experimental ARAMAR: radiometric and chemical parameters in freshwater samples

Experimental results are described obtained with gamma spectrometry , alpha and beta gross counts, liquid scintillation and fluorometry techniques for the measurement of background radiation and several other techniques for chemical parameters analysis in surface water samples collected in Centro Experimental Aramar and surroundings, from 1988 to 2011. The estimated average background radiation concentrations in water samples in this region is low, related to the Low Level Detection limits of the techniques, and the chemical parameters values are compared with the limits established by CONAMA (Comissao Nacional do Meio Ambiente, Brazil - a governmental Brazilian institution for environmental protection). There are good water quality parameters, and low interference in the environment in Centro Experimental Aramar and region. (author)