Table 6.
Kendal's Tau-b correlations between environmental parameters and indicators/pathogens.
| Temp | pH | EC | Salinity | DO | Turbidity | Daily rainfall | Antecedent dry period | Weightage of land use | |
|---|---|---|---|---|---|---|---|---|---|
| Fecal indicator bacteria | |||||||||
| E.coli | -.234** | .257** | .254** | -.238** | .360** | .173** | -.190** | .322** | |
| Ent | -.279** | .091* | .301** | .309** | -.200** | .427** | .179** | -.146** | .287** |
| Coliphages | |||||||||
| Som col | -.302** | .182** | .196** | -.203** | .350** | .165** | -.147** | .260** | |
| F col | -.380** | .136** | .163** | .328** | .209** | -.148** | .233** | ||
| Total col | -.279** | .230** | .247** | -.214** | .365** | .163** | -.121* | .281** | |
| FRNA genotypes | |||||||||
| FRNA G1 | -.119* | .160** | .173** | .134* | |||||
| FRNA G2 | -.307** | .169** | .195** | -.166** | .226** | .133** | .393** | ||
| FRNA G3 | .150** | .265** | |||||||
| FRNA G4 | |||||||||
| Human specific markers | |||||||||
| B.theta | -.163** | .157** | .225** | .232** | -.160** | .228** | .305** | ||
| M.smithii | .116* | .119* | .153** | .139* | .153** | ||||
| HPyVs | -.270** | .137* | .155** | .189** | .140* | .135* | |||
| Plant virus | |||||||||
| PMMoV | -.165** | .205** | .203** | -.270** | .258** | .451** | |||
| Enteric viruses | |||||||||
| AdeV | .157** | ||||||||
| NoV_G1 | .117* | ||||||||
| NoV_G2 | -.141** | .118* | |||||||
| RotV | |||||||||
| AstV | .112* | ||||||||
| EntV | |||||||||
| Hep_A | |||||||||
| Hep_E | |||||||||
| AichiV | -.292** | .124* | .168** | -.114* | |||||
| SapoV | .148** | ||||||||
| Inf_A_V | .113* | ||||||||
| Bacterial pathogens | |||||||||
| Salmonella | -.156** | .151** | .160** | .122* | -.115* | ||||
| P.aeruginosa | -.236** | .279** | .274** | .281** | .136** | .202** | |||
| Pseudalert | -.200** | .113* | .269** | .282** | -.177** | .379** | .152** | -.143** | .305** |
Abbreviation: Ent – Enterococcus; Som col – Somatic coliphage; F col – F+ coliphage; Total col – Total coliphage; AdeV – Adenovirus; NoV_G1 – Norovirus GI; NoV_G2 – Norovirus GII; RotV – Rotavirus; AstV – Astrovirus; EntV – Enterovirus; Hep_A – Hepatitis A virus; Hep_E – Hepatitis E virus; AichiV – Aichi virus; Sapo_V – Sapovirus; Inf_A_V – Influenza A virus; Temp – Temperature; EC – Electrical conductivity; DO – Dissolved oxygen.
∗∗ Correlation is significant at the 0.01 level (2-tailed).
∗ Correlation is significant at the 0.05 level (2-tailed).