Table 1.
Summary of the percentage of samples detected positive for nucleocapsid genes of SARS-CoV-2 and the average abundance among positive detection. Average pH, dissolved organic carbon (DOC), turbidity (NTU) and conductivity ± standard error were also measured for wastewaters collected at both sampling points. * denotes no standard error applicable since only one occurrence of positive detection.
| % occurrence | Average copy numbers/L ± std error | Average pH ± std error | Average DOC (mg/L) ± std error | Average NTU ± std error | Average conductivity (mS/cm) ± std error | |
|---|---|---|---|---|---|---|
| Underground septic tank | 75.4 | N1: 173.7 ± 32.2 | 7.03 ± 0.04 | 6.40 ± 0.28 | 10.57 ± 0.99 | 0.89 ± 0.04 |
| N2: 772.1 ± 172.5 | ||||||
| N3: 1327.4 ± 176.6 | ||||||
| Biological activated sludge tank | 15.4 | N1: 81.1 ± 11.0 | 7.48 ± 0.04 | 4.51 ± 0.27 | 6.72 ± 0.93 | 1.44 ± 0.05 |
| N2: 1115.8 ± 173.1 | ||||||
| N3: 411.2 * |