https://www.selleckchem.com/pr....oducts/10-dab-10-dea
Cluster analysis classified five sites into three groups, that is, clean region, low polluted region and very clean region. Stepwise temporal discriminant analysis (DA) identified that pH, WT, Cl-, SO42-, COD (chemical oxygen demand), TSS (total suspended solids) and Ca2+ are the parameters responsible for variations between seasons, and stepwise spatial DA identified that DO (dissolved oxygen), EC (electrical conductivity), NH4-N, TN (total nitrogen) and TSS are the parameters responsible for variations between the r