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Understanding the role of Biogenic Volatile Organic Compounds (BVOCs) inatmospheric chemistry and their impact on oxidants and aerosol formation isessential for global environmental research. BVOC emissions, primarily sourcedfrom biogenic processes, pose a challenge due to the vast diversity ofvegetation and ecosystems, as well as temporal changes in land use. Whileprevalent BVOC emission models categorize vegetation into functional types, thevariability in environmental parameters and temporal fluctuations withinnatural canopies remains inadequately represented. This study introduces aninnovative device system designed to address these challenges by integratingthe Relaxed Eddy Accumulator and Gas Chromatograph Photoionization Detector(REAPER) in real-time measurement of isoprene fluxes. The system is portable,cost-effective and lightweight, easily to deploy in remote environments. Byenabling high temporal resolution measurements, this device overcomeslimitations associated with traditional techniques and offers accuratechromatograms. The novel instrument also facilitates real-time datatransmission through a cloud-based platform, allowing access to meteorologicaldata, calculated parameters, chromatograms and flux results. This featuresupports the deployment of these systems across a wide range of sites andintegrates them into existing flux tower networks. In conclusion, this researchcontributes to the advancement of isoprene fluxes measurement techniques andvalidation of satellite-based retrievals of isoprene abundances providing avaluable tool for scientists studying atmospheric chemistry and its impacts onthe environment in diverse ecosystems, ultimately aiding in our understandingof the complex interplay between biogenic processes and atmospheric chemistry.

Long-term BVOCs fluxes in the Amazon rainforest by Relaxed Eddy Accumulation coupled to Gas Chromatograph Photoionization Detector (REAPER)