Policy DM29 is fine in so far as it goes but it is quite a short policy which only specifically refers to NO2 pollution, whereas there is much more concern recently about the impact of other pollutants such as particulates on human health.

We are also aware of an increasing body of research which shows the role which trees can play in helping to absorb pollutants and hence improve air quality, if the trees are of the right species and planted in the right locations: for example at busy road junctions. We have a report on this subject which can be found on our website at http://www.woodlandtrust.org.uk/publications/2012/04/urban-air-quality .