§ Mr. Matthew TaylorTo ask the Secretary of State for the Environment what research he has conducted into which people suffer discomfort when ozone levels exceed 90 parts per billion; and if he will make a statement. [31033]
§ Mr. SackvilleI have been asked to reply.
In 1991 the Department of Health advisory group on the medical aspects of air pollution episodes undertook a detailed review of the effects of ozone on health. Its report was published and is available in the Library.