I would suggest a meeting with the new air quality Minister—actually, I meet Sir Stephen Holgate regularly, as he is one of our advisers. We are increasing monitoring across the country for exactly the purposes that the hon. Gentleman mentions: the better the data, the more we know what action we can take.
The targets that we are working on are being carefully approached with experts such as Sir Stephen Holgate, as well as others from Imperial College London and the UK Centre for Ecology & Hydrology. We have two expert panels: the air quality expert group, chaired by Professor Alastair Lewis, and the committee on the medical effects of air pollutants, chaired by Anna Hansell of the University of Leicester. That will ensure that we get the targets right and that they are informed by the latest atmospheric science and health evidence. We will, of course, share those findings with the World Health Organisation.