A bill to establish the right to breathe clean air; to require the Secretary of State to achieve and maintain clean air in England and Wales; to involve Public Health England in setting and reviewing pollutants and their limits; to enhance the powers, duties and functions of the Environment Agency, the Committee on Climate Change, local authorities (including port authorities), the Civil Aviation Authority, Highways England, Historic England and Natural England in relation to air pollution; to establish the Citizens’ Commission for Clean Air with powers to institute or intervene in legal proceedings; to require the Secretary of State and the relevant national authorities to apply environmental principles in carrying out their duties under this Act and the clean air enactments; and for connected purposes