Interesting paper - thanks GM. So to paraphrase it, this report concludes that excess NO2 has a marginal detrimental effect on life expectancy, mainly for those with pre-existing medical conditions, heavy smokers etc, but it points out that NO2 and other pollution in cities has been falling for decades, and that this is therefore 'not what we would usually think of as a crisis.' However, the paper points out that 'it can still be good to seek improvements in air quality, but only provided these are based on a careful analysis of the costs per life-year saved.'
So given the marginal benefits to be gained, is it really justifiable to impose these additional costs on minicab drivers and self employed plumbers, electricians etc in an area like Marple which does not have high levels of NO2, at a time when we are all facing significant price rises, increases in interest rates, and increased NI contributions. The 'cost per life year saved' would surely be excessive.