The use of the fluorescence to the study of the water quality

We present a work proposal now in course, that is based on the study of the fluorescence of cyanobacteria, and the possibility of detecting their presence in freshwater environment, with a direct application in water assessment. This proposal is a consequence of a previous study about the fluorescence generated by hydrocarbon residue on the sea surface. In the first part of this work we present a review of results obtained from the analysis of hydrocarbon samples from the "Prestige" oil spill accident. In the second part we show the capability of this technique for the development of probes to explore the water quality.