§ Mr. Jessel
To ask the Secretary of State for Health if, as a matter of urgency, he will direct the Chief Medical Officer to provide a second opinion on the risk to human health of chironomidae in water, including drinking water supplies.
§ Mr. Freeman
The Chief Medical Officer has sought expert advice on this matter. The advice is that there is no evidence that when these larvae have been found in drinking water supplies they have ever caused a human health hazard.