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. 2020 Oct 29;760:143350. doi: 10.1016/j.scitotenv.2020.143350

Fig. 1.

Fig. 1

In the first stage of this project, out of 27 samples tested, 6 samples showed a positive signal to SARS-CoV-2 genes, all coming from the same two stations (stations A and F). The cycle threshold showed to increase in value, implying a decrease in the concentrations of the viral load within the samples throughout the short period of collection.