Source and behavior of isoprenoid compounds at a southern France remote site

Emissions from Landes forest strongly impact the atmospheric reactivity at the measurement site. Thus, when the measurement site is under the forest's plume (Western wind episodes), HO-initiated processes are predominant; whereas O3-induced oxidation processes are observed in other circumstances (north-eastern winds episodes). This dichotomy can be explained by higher in-situ reactivity induced by the upcoming of BVOC from distant sources.