The Government is committed to taking action on PM 2.5, as it is the pollutant that has the most significant impact on health. Ministers are developing a clear evidence-based process for setting the fine particulate matter (PM 2.5) target introduced in the Environment Bill. This process will involve thorough analysis and independent expert advice, considering economic, social and technological factors. It will also involve detailed analysis to assess what additional action would be needed to achieve potential targets. I am pleased that both Parliament and the public will have the opportunity to provide input to the development of an ambitious and achievable target.