§ Mr. Masonasked the Secretary of State for the Environment if, in view of the possible carcinogenicity of chrysoidine dye and of a possible link with bladder cancer in anglers, he will issue guidelines to water authorities of its potential danger.
§ Mr. Giles ShawNo. My right hon. Friend the Secretary of State for Social Services is investigating the possible carcinogenicity of chrysoidine dye. The water authorities will be informed of the results. If necessary, they can use powers already available to prohibit its use in fishing waters.