| Author | APIS - Air Pollution Information System |
| Title | Guide to using a lichen based index to nitrogen air quality |
| Type | Leaflet |
| Illustrations | Colour photographs |
| Review (by Malcolm Storey) | A guide to identifying several lichens that are common trees and how to interpret the results as a nitrogen-pollution index. Can be downloaded or a hard-copy bought from the usual sources. |
| Website url | www.apis.ac.uk/nitrogen-lichen-field-manual#lichen field guide |
| Notes & Purpose | Status | Taxon | English | Classification |
|---|---|---|---|---|
| Current | [Lichenes] | lichens | Fungi |
Unless otherwise expressly stated, all original material on the BioInfo website by Malcolm Storey is licensed under the above Creative Commons Licence.