Figure 1. Study area and sampling sites.
The study area and the sampling sites located around the city of Venice (Italy). The sites were selected on the basis of the presumptive level of fecal contamination. The sites SM and A were located closer to the historical centre of Venice, thus under closer proximity to the sources of fecal bacteria. The LL site was located in the Lido island, at higher distance from the city centre and closer to the Lido inlet, which exchanges water with the sea, thus representing a potentially less contaminated site. The latitude and longitude of the three sites were: 45°25’48.77”N, 12°21’16.56”E (site SM), 45°26’2.24”N, 12°21’0.32”E (site A), 45°25’10.21”N, 12°22’26.38” E (site LL). The map was created with QGIS v2.2.0 software.