VOLATILE ORGANIC COMPOUND

‡and David N. Lambeth*,†Electrical and Computer Engineering Department, Chemistry Department, RoboticsInstitute, and Chemical Engineering Department, Carnegie Mellon UniVersity,Pittsburgh, PennsylVania 15213, and National Personal ProtectiVe TechnologyLaboratory, National Institute for Occupational[r]

seasons. Local automotive emissions were the strongest contributor to changes inatmospheric VOC concentrations; however, they did not significantly impact the aerosolspecies included in the factor analysis. We conclude that longer-range transport andindustrial emissions were more important sources o[r]

Region 9’s guidelines for measuring VOC concentrations in soil and other solid matrices include the following: 1. Samples should be handled as intact soil cores until being transferred into methanol or into the container that will be used for analysis. Volatilization of VOCs can occur quickly from[r]

(Izco and Torre, 2000; Nogueira et al., 2005). In addition to imparting a fruity oral character, esters can diminish or mask the sharpness of unpleasant free amino acid-derived notes (Yanfang and Wenyi, 2009). In conclusion, this st u dies on microorganisms associated with volatile organi[r]

ities, and Olaf Schroeder of FAL Braunschweig for his help at the experimental sites. This work was partially funded by the Bundesanstalt für Landwirtschaft und Ernährung (BLE) under project number 514-33.26/04HS006. Full funding for N.M. Ngwabie came from the German Research Foun-dation (DFG) under[r]

28. Labows JN, McGinley KJ, Webster GF, Leyden JJ: Headspace analysis ofvolatile metabolites of pseudomonas aeruginosa and related speciesby gas chromatography–mass spectrometry. J Clin Microbiol 1980,12:521–526.29. Wang T, Carroll W, Lenny W, Boit P, Smith D: The analysis of 1-propanoland 2-propano[r]

Gasoline samples collected in Sacramento confirm differences in the pattern of oxygenate use between the Bay area and the Central Valley, where Federal RFG program requirements make oxygenate use mandatory. Other related differences include less use of trimethylpentanes in Sacramento vs. Bay area ga[r]

the applicable reactive organic compound limits. This determination may be used to establish a violation of the Aerosol Coatings Regulation. 5.6.4 If there exists a discrepancy that cannot be resolved between the results of Method 310 and the formulation data or additional information[r]

-3 and the lowest concentrations occurring in winter months when indoor RH was low. A model describing the emissions of formaldehyde from urea-formaldehyde wood products as a function of temperature, RH and concentration reasonably predicted the temporal variation of formaldehyde emissions in the ho[r]

lightTransduced lightOptical Fiber Sensors to Detect Volatile Organic Compound The Open Construction and Building Technology Journal, 2010, Volume 4 117 will be reflected back. This process is governed by the Fresnel’s law, and is described in detail in [37]. An optical coupler[r]

feld, F. C., Holloway, J. S., Hubler, G., Nicks, D. K., Nowak,J. B., Parrish, D. D., Ryerson, T. B., Atlas, E. L., Donnelly, S.G., Schauffler, S. M., Stroud, V., Johnson, K., Carmichael, G. R.,and Streets, D. G.: Chemical composition of air masses trans-ported from Asia to the U.S. WestCoast during I[r]

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 Scope. This method is applicable for thedetermination of VOC leaks from process equipmen[r]

Volatile Organic Compound (VOC) Vluchtige Organische Stoffen (VOS) Overzicht van definities Bron: Feica oktober 2007 EU 1999/10/EG (1996/13/EG) (“EC Ecolabel Paints and Varnishes directive”) „any organic compound with at normal conditions for pressure a boiling[r]

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 Scope. This method is applicable for thedetermination of VOC leaks from process equipmen[r]

Human-induced changes in US biogenic volatile organiccompound emissions: evidence from long-term forestinventory dataDREW W. PURVES*,JOHNP.CASPERSENw , PAUL R. MOORCROFTz, GEORGE C. HURTT§and S T E P H E N W. PA C A L A**Department of EEB, Princeton University, Princeton, NJ 08540, USA, wFacu[r]

3). We also employed the variability-lifetime relationship defined bythe VOC data set to estimate submicron aerosol residence times as a function of chemicalcomposition. Two independent measures of aerosol chemical composition yieldedconsistent residence time estimates. Lifetimes calculated in this[r]

Most reported TVOC-concentrations in non-industrial environments are below 1 mg/m3 and few exceed 25 mg/m3. At these concentration levels only sensory effects are likely to occur, but other health effects can not be excluded after long term exposure. The sensory effects include sensory irritation, d[r]

E. C. Apel et al.: Chemical evolution of volatile organic compounds 2371Fig. 15. MOZART simulation for ozone produced from emissions in Mexico City and its surrounding areas (top left panel) and VOC OHreactivity (top right panel). Curtain plots of the VOC OH reactivity taken at points[r]

measurement uncertainty and the details of determiningthe source number and dealing with missing values are alsopresented as important parts of the data analysis process.This study demonstrates the feasibility of the expandedmodel to identify sources in complex VOC systems andextract useful informat[r]

Carbon tetrachloride Carbon tetrachloride is a manufactured compound that does not occur naturally. It has been produced in large quantities to make refrigeration fluid and propellants for aerosol cans. However, the production of carbon tetrachloride is being phased out. In the past, carbon t[r]