Hedges to reduce pollution

Question

Which evergreen hedges are best to reduce traffic pollution in London

Answer 1

Generally, for this application you will want a tight, compact tree that spreads or covers a lot of space. Thujas, compact cedars, and spruces can help here. You will just want something that can be pruned if you are looking for hedgelike structure. This link will give you more information: https://www.gardeningknowhow.com/ornamental/shrubs/shgen/evergreen-shrubs-for-privacy.htm