(1)A person served with a notice under the preceding section, or any other person having an interest in the premises to which the notice relates, may appeal to the Secretary of State—
(a)on the ground that the giving to the authority or the disclosure to the public of all or part of the information required by the notice would—
(i)prejudice to an unreasonable degree some private interest by disclosing information about a trade secret, or
(ii)be contrary to the public interest, or
(b)on the ground that the information required by the notice is not immediately available and cannot readily be collected or obtained by the recipient of the notice without incurring undue expenditure for the purpose.
(2)If the Secretary of State allows the appeal he may direct the local authority to withdraw or modify the notice, or to take such steps as may be specified by the Secretary of State to ensure that prejudicial information is not disclosed to the public ; and it shall be the duty of the authority to comply with the direction.
(3)The Secretary of State may make regulations as to appeals under this section, including regulations about the time for bringing an appeal and the circumstances in which all or any part of the appellant's case is to be withheld from the respondent; but it shall be the duty of the Secretary of State, before he makes any regulations under this subsection, to consult such persons appearing to him to represent local authorities, such persons appearing to him to represent industrial interests and such persons appearing to him to be conversant with problems of air pollution as he considers appropriate.