asked the Secretary of State for Wales if, in view of his decision to commission a scientific survey of atmospheric pollution in South-West Wales, he will now establish a similar investigation into heavy metal contamination in the atmosphere of South-East Wales.

In addition to the detailed survey in the Swansea-Neath-Port Talbot areas, a team from University College, Swansea, will be undertaking tests to measure the level of heavy metal pollution of the atmosphere throughout the whole of South Wales, including South-East Wales. That is designed to show whether above-average levels of heavy metals in the atmosphere occur elsewhere. It will enable a comparison to be made with the findings of the more detailed survey in the Swansea-Neath-Port Talbot areas. I am writing to the hon. Member to give him further details of the project.