Peter Fleming, Campbell Associates.
I would say you present the knowledge which will allow people to come to the “right” decision.
We recently provided an AQY to monitor outside of a school. Diffusion tubes indicated that the AVERAGE NO2 conc was just below the 40ug/m3. However monitoring showed that levels were at their highest at the times when the children were arriving or leaving school. Presenting this data has shown parents that parking outside the school at these times was harming their children. This made it easier for them to accept behavioural changes. Indeed , once they saw the data it was the parents who instigated the changes.