Volatile organic compound measurements at Trinidad Head, California, during ITCT 2K2: Analysis of sources, atmospheric composition, and aerosol residence times pot

... MEASUREMENTS AT TRINIDAD HEAD16 of 16D23S16 Volatile organic compound measurements at Trinidad Head, California, during ITCT 2K2: Analysis of sources, atmospheric composition, and aerosol residence ... chemistry, volatile organic compounds, aerosol Citation: Millet, D. B., et al. (2004), Volatile organic compound measurements at Trinidad Head, California, during ITCT 2K2: Analysis of sources, atmospheric ... obtained at Trinidad Head during ITCT 2K2,encompassing a wide range of compounds with varying sources, functionalities, and lifetimes. Factor analysis of D23S16 MILLET ET AL.: VOC MEASUREMENTS AT TRINIDAD...

Atmospheric volatile organic compound measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions pot

... Identification of secondary organic aerosol episodes and quantitation of primary and secondary organic aerosol concentrations during S CAQS, Atmos. Environ.,29(23), 3527 –3544.Wittig, B., N. Anderson, ... (10 times that of t-2-butene) and/ orit was offset by increased emissions.3.3.3. Quantification of Secondary Organic Aerosol [57] Organic carbon (OC) constitutes a significant frac-tion of atmospheric ... SUPERSITE17 of 17D07S07 Atmospheric volatile organic compound measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributionsDylan...

Chemical Composition of Vehicle-Related Volatile Organic Compound Emissions in Central California pdf

... Valley of California. Sacramento gasoline samples collected in summer 2001 indicate across the board use of oxygenates in all brands and grades of gasoline. Differences in patterns of oxygenate ... Review of volatile organic compound source apportionment by chemical mass balance. Atmospheric Environment 35, 1567-1584. Zielinska, B., Fung, K.K. (1994). The composition and concentration of ... Study. Of the profiles reported here, the summer 1999 and 2001 fuel and tunnel profiles are close matches for the Bay area in summer 2000. Due to differences in the patterns of oxygenate use...

Volatile Organic Compound (VOC) measurements in the Pearl River Delta (PRD) region, China pdf

... those at GZ, and the relative contributions from aromatics and alkenes toVOCs reactivity were similar. At lower mixing ratios of to-tal VOCs, the LOHs of alkenes exceeded those of aromatics, and ... Su for his helpfuldiscussion of the NOx and HONO data.Edited by: J. RinneReferencesAtkinson, R. and Arey, J. Atmospheric degradation of volatile or-ganic compounds, Chem. Rev., 103(12), ... characteristics of volatile organic compounds in the Seoul atmosphere, Atmos. En-viron., 37(6), 733–742, 2003.Ochiai, N., Tsuji, A., Nakamura, N., Daishima, S., and Cardin, D.B.: Stabilities of 58 volatile...

Tài liệu Human-induced changes in US biogenic volatile organic compound emissions: evidence from long-term forest inventory data ppt

... the patterns in theinventory data. The estimate of heatwave isoprene and monoterpene emission rates (Fig. 2) was stronglycorrelated with the pattern of standing basal area of isoprene- and monoterpene-emitting ... estimates for UnitedStates woodland landscapes. Atmospheric Environment, 28,1197–1210.Guenther A, Greenberg J, Harley P et al. (1996) Leaf, branch,stand and landscape scale measurements of volatile ... for state-level estimates of DngmBðstateÞ and DharvBðstateÞ, as a percentage of theestimate, for each state. This means for example thatif DngmBðstateÞtakes the value 100.0 U and the...

Tài liệu METHOD 21 - DETERMINATION OF VOLATILE ORGANIC COMPOUND LEAKS doc

... calibrationprecision checkEnsure precision and accuracy, respectively, of instrument response tostandard10.0 Instrument calibration10.0 Calibration and Standardization.10.1 Calibrate the ... [Reserved]1151METHOD 21 - DETERMINATION OF VOLATILE ORGANIC COMPOUND LEAKS1.0 Scope and Application.1.1 Analytes.Analyte CAS No. Volatile Organic Compounds (VOC) No CAS number assigned1.2 ... appropriate safety and health practices and determine the applicability of regulatory limitationsprior to performing this test method.5.2 Hazardous Pollutants. Several of the compounds,leaks of...

Microorganisms Associated with Volatile Organic Compound Production in Spoilt Mango Fruits docx

... method of (Wanakhachornkrai and Lertsiri, 2003) approximate quantication of volatile compounds was estimated by the integration of peaks on the total ion chromatogram using Xcalibur software ... (%).ResultsThe microbial flora associated with volatile organic compound during spoilage of mango fruits were isolated and identied as seven species of bacteria and a species of yeast. These include ... acid and oleic acid The presence and/ or absence of the above volatile organic compounds and the differences in their relative abundance could be considered for qualitative discrimination of...

Volatile organic compound emission and other trace gases from selected animal buildings ppt

... and flux estimates of volatile organic compounds from a dairy cowshed in Germany. J Environ QualityNimmermark S, Gustafsson G (2005) Influence of temperature, humidity and ventilation rate ... Characteri-zation and quantification of odorous and non-odorous volatile organic compounds near a commercial dairy in California. Atmos Environ 37(7):933-940Schade GW, Crutzen PJ (1995) Emissions of ... Chirase NK (2004) Sampling and analysis of volatile organic compounds in bovine breath by solid-phase micro-extraction and gas chromatography-mass spectrometry. J Chromat A 1025(1):63-69Warneke...

Detection of Pseudomonas aeruginosa in sputum headspace through volatile organic compound analysis potx

... colonization at study visit (Figure 1) [32].Multivariate data analysis All data was evaluated using multivariate data analysis techniques, including Principal Component Analysis (PCA) and Partial ... bacterial culturing and analysis of volatile compounds by gas chromatography–mass spectrometry. Data analysis and model building were done by PartialLeast Squares Regression Discriminant analysis (PLS-DA). ... breath phase by quantification of water vapour inbreath samples while the soft ionization techniqueallows easy analysis of high moisture samples such asbreath. IMS has the disadvantage of...

Volatile Organic Compound (VOC) - Vluchtige Organische Stoffen (VOS) potx

... definition relates to ozone formation US EPA Definition of VOC - Volatile Organic Compounds Volatile Organic Compound (VOC)” means any compound containing at least one atom of carbon, excluding ... formation International ASTM D 3960-90 (international standards developing organization) „any compound of carbon evaporating under specific test conditions; water and exempt volatile ... associations CEPE (2001?) volatile organic compounds used in, or associated with the use of, decorative coatings and which have an initial boiling point at standard pressure of less than or equal...

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