Number of Water Quality Stations/Rivers where Concentration of Trace and Toxic Metals (Heavy Metals) Exceeds Permissible Limits in India (2009-2013) | ||
Parameters | No. of Rivers | No. of Sites/Stations |
Arsenic* | ||
Cadmium | ||
Chromium | ||
Copper | ||
Lead | ||
Nickel | ||
Zinc* | ||
Iron | ||
Mercury* |