River sediments, compositional data, multivariate analysis, potentially toxic elements, enrichment factor
Organochlorine Pesticides, isomeric ratios, OCP Recency Index, Soil contamination, health risk assessment.
Compositional Data Analysis (CoDA), Potential Toxic Elements (PTEs), Robust Principal Factor Analysis (RPFA), Sample Catchment Basin (SCB), Rainbow Map
Sample Catchment Basin, Pollution Indices, Baseline Assessment, Sensitivity Analysis
Principal Component Analysis, Fuzzy Cluster Analysis, Tannery Waste, Chromium Speciation, Empirical Bayesian Kriging