A divergent result was found for three samples collected in
ZY38 (urban area). They showed a specific bacterial community
that differed from the other urban area samples and
was more similar to bacterial community structures from the
agricultural area. These results were probably due to the
generally lower concentrations of metals and nutrients with
respect to the other samples from the urban area. However, the
site seemed to be affected by other environmental parameters
not included in the analysis, as was the case for samples
collected in the agricultural area. Samples supposedly not
affected by contaminants, from the natural park and from a