Lead (Pb) |
Lead acid batteries, paints, E-waste, Smelting
operations, coal-based thermal power plants, ceramics, bangle industry,
canned fruit juices, |
0.1 |
Mercury (Hg) |
Chloro-alkali plants, thermal power plants,
fluorescent lamps, hospital waste (damaged thermometers, barometers,
sphygmomanometers), electrical appliances etc. |
0.01 |
Cadmium (Cd) |
Zinc smelting, waste batteries, e-waste, paint
sludge, incinerations and fuel combustion, pharmaceutical and
recreational drugs, nuclear plant |
0.06 |
Chromium (Cr) |
Electroplating processes, mines, mineral
sources |
0.05 |
Arsenic (As) |
Pesticides, herbicides, insecticides, |
0.02 |