Why are there multiple critical load graphs for the same interest features at a particular site especially for dune habitats?
How do you apply the appropriate ammonia critical level to a vegetation type. For example, for vegetation types such as peatland and woodland would apply the 1ug it would mainly contain lower plants?
There are two sets of values CLmaxS, CLminN and CLmaxN for each SAC or SSSI i.e. minCLmaxN and maxCLmaxN. Which should be used here? Should both sets of values be assessed and, if so, how should the results be reported?
Are freshwater systems (eg flowing water, mesotrophic and eutrophic waters) sensitive to acid and nitrogen deposition?
