Zinc is an element found in virtually all food and drinking water. Large concentration levels in tap water can be a result of dissolution of zinc from taps.

WHO Limit 

WHO states that zinc is not of health concerns at levels found in drinking water

Symptoms of Zinc Contamination 

Zinc sulphate consumption exceeding 500mg induced food-poisoning type symptoms such as fever, nausea, vomiting and diarrhoea.

Treatment Methods: 

• Coagulation, flocculation and settlement
• Granular activated carbon filtration
• Ion exchange 

For Further Information:

WHO Water Quality Guidelines - 4th Edition

WHO Zinc in Drinking Water