Figure 4 | Scientific Reports

Figure 4

From: Online trend estimation and detection of trend deviations in sub-sewershed time series of SARS-CoV-2 RNA measured in wastewater

Figure 4

Retrospective and online estimates of the viral concentration trend with uncertainty quantification for the large WWTP. The vertical axis is \(\log \)10 copies/liter. The shaded grey rectangles correspond to periods of missing data. Note that the online trend estimates are “noisier” and have wider uncertainty bands than the retrospective trend estimates.

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