Search Results - "Fraser, P. M."

Organic composition and source apportionment of fine aerosol at Monterrey, Mexico, based on organic markers by Mancilla, Y, Mendoza, A, Fraser, M P, Herckes, P

“…Primary emissions from anthropogenic and biogenic sources as well as secondary formation are responsible for the pollution levels of ambient air in major urban…”
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Biogeography in the air: fungal diversity over land and oceans by Fröhlich-Nowoisky, J, Burrows, S. M, Xie, Z, Engling, G, Solomon, P. A, Fraser, M. P, Mayol-Bracero, O. L, Artaxo, P, Begerow, D, Conrad, R, Andreae, M. O, Després, V. R, Pöschl, U

“…Biogenic aerosols are relevant for the Earth system, climate, and public health on local, regional, and global scales. Up to now, however, little is known…”
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Atmospheric black carbon deposition and characterization of biomass burning tracers in a northern temperate forest by Santos, F., Fraser, M.P., Bird, J.A.

“…Aerosol black carbon (BC) is considered the second largest contributor to global warming after CO2, and is known to increase the atmosphere's temperature,…”
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Levoglucosan, a tracer for cellulose in biomass burning and atmospheric particles by Simoneit, B.R.T., Schauer, J.J., Nolte, C.G., Oros, D.R., Elias, V.O., Fraser, M.P., Rogge, W.F., Cass, G.R.

“…The major organic components of smoke particles from biomass burning are monosaccharide derivatives from the breakdown of cellulose, accompanied by generally…”
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Source apportionment of fine particulate matter in Houston, TX, using organic molecular markers by Fraser, M.P., Yue, Z.W., Buzcu, B.

“…Using ambient concentrations of molecular markers, chemical mass balancing calculations have been performed to estimate the contribution of source categories…”
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Molecular composition of organic fine particulate matter in Houston, TX by Fraser, M.P., Yue, Z.W., Tropp, R.J., Kohl, S.D., Chow, J.C.

“…Organic fine particulate matter collected in Houston, TX between March 1997 and March 1998 was analyzed to determine the concentration of individual organic…”
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Air Quality Model Evaluation Data for Organics. 6. C3−C24 Organic Acids by Fraser, M. P, Cass, G. R, Simoneit, B. R. T

“…The atmospheric concentrations of 47 carboxylic acids in the semivolatile and particle phases are quantified in the Los Angeles area, as part of a larger study…”
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Secondary particle formation and evidence of heterogeneous chemistry during a wood smoke episode in Texas by Buzcu, B., Yue, Z. W., Fraser, M. P., Nopmongcol, U., Allen, D. T.

“…To evaluate the impact of regional wildfires in east Texas on fine particulate matter concentration and composition, source apportionment calculations were…”
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Predicting soil pH changes in response to application of urea and sheep urine by Curtin, D., Peterson, M. E., Qiu, W., Fraser, P. M.

“…Volatilization of NH3 following urea application or livestock urine deposition can result in significant loss of N to the environment. Urea hydrolysis to NH4+…”
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Effects of irrigation intensity on preferential solute transport in a stony soil by Cichota, R, Kelliher, FM, Thomas, SM, Clemens, G, Fraser, PM, Carrick, S

“…If irrigation intensity exceeds soil infiltration capacity, water may flow preferentially down cracks and large pores. In this situation, solute transport will…”
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Separation of Fine Particulate Matter Emitted from Gasoline and Diesel Vehicles Using Chemical Mass Balancing Techniques by Fraser, M. P, Buzcu, B, Yue, Z. W, McGaughey, G. R, Desai, N. R, Allen, D. T, Seila, R. L, Lonneman, W. A, Harley, R. A

“…Samples of fine particulate matter were collected in a roadway tunnel near Houston, TX over a period of 4 days during two separate sampling periods:  one…”
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Estimates of heterogeneous formation of secondary organic aerosol during a wood smoke episode in Houston, Texas by Nopmongcol, U., Khamwichit, W., Fraser, M.P., Allen, D.T.

“…Observational data, collected during a wood smoke episode in Houston, Texas, were used to assess the extent to which acid-catalyzed reactions of carbonyls…”
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Gas-Phase and Particle-Phase Organic Compounds Emitted from Motor Vehicle Traffic in a Los Angeles Roadway Tunnel by Fraser, Matthew P, Cass, Glen R, Simoneit, Bernd R. T

“…The emission rates for 221 vapor-phase, semivolatile, and particle-phase organic compounds from motor vehicles plus fine particulate matter mass and some…”
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Soil nitrification inhibition by urine of sheep consuming plantain (Plantago lanceolata) by Peterson, M. E., Fraser, P. M., Curtin, D., van Klink, J. W., Joyce, N. I.

“…Urine from sheep fed with different plantain cultivars ( Plantago lanceolata L.) was characterised to determine if metabolites in the urine contributed to soil…”
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Influence of summer irrigation on soil invertebrate populations in a long-term sheep irrigation trial at Winchmore (Canterbury) by Fraser, PM, Schon, NL, Piercy, JE, Mackay, AD, Minor, MA

“…Soil invertebrates have limited defences against moisture stress but little is understood of how irrigation influences their community. This paper investigates…”
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Detection of Excess Ammonia Emissions from In-Use Vehicles and the Implications for Fine Particle Control by Fraser, Matthew P, Cass, Glen R

“…The emission rate for ammonia from in-use vehicles is calculated based on measurements made inside a Los Angeles roadway tunnel. Using fleet distributions by…”
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Management Effects on Barley Straw Decomposition, Nitrogen Release, and Crop Production by Beare, M. H., Wilson, P. E., Fraser, P. M., Butler, R. C.

“…Development of sustainable‐crop production systems depends on identifying effective strategies for the management of postharvest crop residues. The effects of…”
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The effects of an energy efficiency retrofit on indoor air quality by Frey, S. E., Destaillats, H., Cohn, S., Ahrentzen, S., Fraser, M. P.

“…To investigate the impacts of an energy efficiency retrofit, indoor air quality and resident health were evaluated at a low‐income senior housing apartment…”
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Modeling the Atmospheric Concentrations of Individual Gas-Phase and Particle-Phase Organic Compounds by Fraser, M. P, Kleeman, M. J, Schauer, J. J, Cass, G. R

“…An Eulerian photochemical airshed model is adapted to track the concentrations of individual vapor-phase, semivolatile, and particle-phase compounds over the…”
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Particulate organic compounds emitted from motor vehicle exhaust and in the urban atmosphere by Fraser, Matthew P., Cass, Glen R., Simoneit, Bernd R.T.

“…The emission rate of particle-phase petroleum biomarkers in vehicular exhaust compared to the concentrations of these biomarkers in ambient air is used to…”
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