I am going to plough on for a bit, because I think I have been pretty generous so far. The two targets that we will set—a concentration target and
a population exposure reduction target—will work together to both reduce PM2.5
in areas with the highest levels and drive the continuous improvement that we need. A focus on reducing population exposure, not just a concentration-based target, recognises that there is no safe level of PM2.5, and a scientific approach is absolutely the right way to go. We recognise that this will not be easy and that we need to engage with society to bring it along with us.