Written questions

Chlorine: Health Hazards

Commons · Question 14681 · Tabled 30 Jun 2026 · Department for Environment, Food and Rural Affairs · Official record

Answered 8 Jul 2026

Question

Asked by Gregory Stafford

To ask the Secretary of State for Environment, Food and Rural Affairs, what research his Department has commissioned or reviewed since 2000 into potential health effects associated with long-term domestic exposure to chlorinated mains water through bathin

Answer

Answered by Emma Hardy, 8 Jul 2026

Chlorine has a long history of about 100 years of safe use for hygiene purposes worldwide. It is the most widely used disinfectant in the home. It is also a disinfectant used by the water industry to maintain hygienic conditions within the public water su...