The erratic TSS pattern was expected as it is a highly variable parameter and is influenced by several factors, including discharge rates, soil erosion, runoff source, effluent emissions, decomposing plant and animal material, land use, and plankton, which differ according to physical conditions (WHO, 1996; Fondriest Environmental, Inc., 2014; Anon 2017).
3.2.3 Temporal variability of WQ parameters in NPW
Samples were collected on a monthly basis in this study. To assess if differences in the time of sample collection had a statistically significant influence on the parameters, an ANOVA test was conducted (Table 5). During this period, the water levels of the river were in recession. Thus, the intention
of this study was to assess the effect of receding water levels on WQ.