Excessive presence of which of the following substances in drinking water can…

Concept

Chemical contaminants in drinking water can produce different systemic effects after ingestion.

Toxic metals that accumulate in the body may damage the kidneys and vascular system, which can contribute to hypertension.

Application

Lead is a cumulative toxic metal.

Chronic lead exposure is associated with renal and vascular effects, including elevated blood pressure; drinking water can be an ingestion pathway.

Contrast

• Sulphate: At high concentrations in drinking water, sulphate is mainly associated with altered taste and a laxative effect.

• Zinc: Excessive intake is more commonly associated with a metallic taste, nausea and vomiting.

• Copper: Excessive intake commonly causes gastrointestinal irritation, nausea and vomiting.

Result

Therefore, the contaminant asked for is lead.