Table 1.
Weather and wastewater parameters during sampling events (two-hourly sampling for 3 days, 36 samples), mengovirus (MgV) recovery (Rec) percentiles and the number of samples positive for adenovirus (AdV), norovirus genotype I and II (NoVGI and NoVGII) and sapovirus genotype I (SaVGI). N/A indicates no data available. Positive samples are those with viral concentrations exceeding the limit of detection (LOD) of the method (25 gc/L)
| Site | Season | Start of sampling | Temperature (min/max °C) | Precipitation (mm) | MgV (Rec (SD) %) | AdV (positive) | NoVGI (positive) | NoVGII (positive) | SaVGI (positive) |
|---|---|---|---|---|---|---|---|---|---|
| Betws-y-Coed | Summer | 25/06/16 | 13–15/17–18 | 19.2 | N/A | 35 | 8 | 20 | 0 |
| Autumn | 08/11/16 | 4–10/10–11 | 61.6 | 77 (22) | 36 | 14 | 27 | 0 | |
| Winter | 27/02/17 | 2–6/7–9 | 79.0 | 20 (5) | 36 | 21 | 28 | 0 | |
| Llanrwst | Summer | 19/07/16 | 12–15/19–32 | 7.2 | N/A | 34 | 5 | 23 | 0 |
| Autumn | 24/10/16 | 8–13/13–15 | 5.8 | 32 (24) | 36 | 0 | 36 | 0 | |
| Ganol | Autumn | 14/11/16 | 6–12/10–14 | 24.2 | 59 (15) | 36 | 26 | 36 | 23 |
| Winter | 13/02/17 | 2–8/9–11 | 0.2 | 30 (12) | 36 | 36 | 36 | 29 |