Dominating Role of Ionic Strength in the Sedimentation of Nano-TiO₂ in Aquatic Environments

Table 4

Results of range analysis.

Factor
pH	14.20
IS	37.90
NOM	14.57
pH × IS	5.31
pH × NOM	3.58
IS × NOM	6.42
Error	2.84

is range difference, and “×” represents the interactions between two factors.