1. Lead
2. Zinc
3. Copper
4. Arsenic
5. Cadmium
6. Mercury
7. Nickel
8. Chromium
Does watercress can remove above heavy metals? How long does it takes to uptakes completely from the dam after releasing it to the dam as waste from mine sites
Watercress is known for its ability to remove heavy metals from water. It can indeed uptake lead, zinc, copper, arsenic, cadmium, mercury, nickel, and chromium from the environment.
The time it takes for watercress to completely remove these heavy metals from a dam after they have been released as waste from mine sites can vary. Factors such as the concentration of the heavy metals in the water, the size and health of the watercress plants, and environmental conditions can all impact the uptake process.
It is likely that it would take some time for the watercress to uptake all of the heavy metals, and the plants may need to be periodically replaced or removed to continue the remediation process. It is also important to note that while watercress can help reduce heavy metal contamination, other remediation methods may also be necessary to fully address the issue.