Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Laurisilva of Madeira' has mentioned 'Pollution' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Around 13 liverwort species and 20 moss species are noted as threatened at a European scale, while abundant lichens are indicative of high environmental quality and the absence of pollution. | UNESCO |