Title: Atmospheric pollutants in forest areas
Subjects: Forest ecology, Environmental aspects, Atmospheric deposition, Forests and forestry, Pollution, Écologie forestière, Air, Aspect de l'environnement, Luchtverontreiniging, Bossen, Luftverschmutzung, Nebel, Saurer Regen, Versauerung, Waldökosystem, Kongress, Environmental degradation