An Assessment of Physicochemical Parameters of Selected Industrial Effluents in Nepal

Figure 5

Graphs showing the copper and chromium levels with their respective error bars on standard deviation, observed in the samples of 5 sites of this study, along with the ECR tolerable limit for copper (3 ppm) as shown by red line, the ECR tolerable limit for chromium (0.1 ppm) as shown by green line, and the NDWQS tolerable limit for chromium (0.05 ppm) as shown by blue line.