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Showing 1 to 6 of 6 for “"Biogenic VOCs"”.
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MEASUREMENTS OF ATMOSPHERIC RADICALS IN AMBIENT AND INDOOR ENVIRONMENTS: OUTDOOR-INDOOR RELATIONSHIPS, INDOOR FORMATION MECHANISMS, AND INSTRUMENTAL ANALYSIS
… oxidation of volatile organic compounds (VOCs), which in the presence of nitrogen oxides (NOx) can form ozone and secondary organic aerosols (SOA)—air pollutants affecting human health and welfare in ambient and indoor environments. In ambient environments with high mixing ratios of …
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Sources and sinks of selected trace gases in the tropospheric boundary layer of the eastern United States
… examined for evidence of regional VOC sources. Biogenic VOCs, including isoprene, monoterpenes, and oxygenated VOCs, were significant components of the total reactivity at both locations. However, very different VOC distributions were observed for each site. The impact of local anthropogenic …
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Urinary Volatile Organic Compounds (VOCs) in the Diagnosis of Urothelial Bladder Cancer
… cancer urinary volatile organic compounds (VOCs) biomarkers and explore its application in non-invasive diagnosis of bladder cancer. Urinary VOCs are a class of chemical compounds found in urine that generated from biological activities of cells, cancer cells have special metabolic …
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The application of novel mass spectrometric techniques for the analysis of volatile organic compounds in different environments
Volatile organic compounds (VOCs) are released into the atmosphere from numerous anthropogenic and biogenic sources. Traditionally VOCs have been measured using offline techniques such as Gas Chromatography-Mass Spectrometry (GC-MS). The development of the proton transfer reaction mass spectrometer …
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Temporal assessment of volatile organic compounds at a site with high atmospheric variability in the North–West Province
Volatile organic compounds (VOCs) are emitted into the atmosphere from biogenic and anthropogenic sources with atmospheric lifetimes ranging from minutes to months, depending on the specific VOC compound considered. It is estimated that biogenic VOCs (BVOCs) (e.g. isoprenes, terpenes) make up 90% …
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Measurement, Modeling, and Analysis of Ozone and its Key Precursors in the Southeast United States National Parks
… these areas characterized with strong reactive biogenic VOCs emission. Multiple linear regression analysis provides that point sources contribute a minimum of 23% and 27% of total NOy at GRSM and MACA, respectively, during the whole measurement period. Another technique, emission inventory …