105 Marco Alésio Figueiredo Pereira, Tatiana Moraes da Silva Heck, Fabiano Costa de Oliveira, Rodrigo Staggemeier, Daniela Müller de Quevedo e Sabrina Esteves de Matos Almeida To better understand of the contamination throughout the study area, the figure 4 demonstrates the average concentration of HAdV and BAdV of each point. It is observed that the highest concentration of BAdV occurred in point 4, followed by points 1, 5 and 6, respectively. Only at points 2 and 3 did not present samples contaminated with BAdV. Figure 4. Presence of HAdV and BAdV in the sampled points 4. DISCUSSION The presence of HAdV-C and HAdV-F, as well as BAdVwere detected in all campaigns, with concentrations of up to 1.56x107 gc.L-1, 1.14x107 gc.L-1, 2.46x108 gc.L-1, respectively. Viral load concentrations in the range of 106 and 107 gc.L-1 were found by Bofill-Mas et al. (2006) in collections carried out at Water Treatment Plants (WTP) in the city of Barcelona – Spain. Fong et al. (2010) in collections carried out in the lower third of the Great River, a tributary of Lake Michigan, state of Michigan, USA; revealed that even after primary and secondary treatment of wastewater, there were AdV concentrations in the samples, thus demonstrating the inefficiency of conventional treatment for these viruses. Fumian et al. (2013) in a study conducted in an WTP, located in the metropolitan region of the city of Rio de Janeiro – Brazil; found HAdV in 100% of the samples with viral loads from 105 to 106 gc.L-1. Staggemeier et al. (2017) in which they evaluated the
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