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Federal
Time series analysis of wintertime O3 and NOx formation
U.S. Environmental Protection Agency —
Concentrations of 11 species are reported from continuous measurements taken during a wintertime field study in Utah. Time series data for measured species generally... -
Federal
Relative contributions of select multigeneration products to chamber SOA formed from photooxidation of a range (C10-C17) of n-alkanes under high NOx conditions
U.S. Environmental Protection Agency —
A series of chamber experiments was conducted to investigate the change in the relative contribution of multigeneration reaction products to total secondary organic... -
Federal
Mutagenic atmospheres resulting from the photooxidation of aromatic hydrocarbon and NOx mixtures
U.S. Environmental Protection Agency —
Although many volatile organic compounds (VOCs) are regulated to limit air pollution and the consequent health effects, the photooxidation products generally are not.... -
Federal
Characterization of Aerosol Nitro Aromatic Compounds Validation of an Experimental Method
U.S. Environmental Protection Agency —
The analytical capabilities associated with the use of silylation reactions have been extended to a new class of organic molecules, nitroaromatic compounds (NACs).... -
Federal
Constraints on primary and secondary particulate carbon sources using chemical tracer and 14C methods during CalNex-Bakersfield
U.S. Environmental Protection Agency —
The present study investigates primary and secondary sources of organic carbon for Bakersfield, CA, USA as part of the 2010 CalNex study. The method used here... -
Federal
Ozonolysis of α/β-farnesene mixture: analysis of gas-phase and particulate reaction products
U.S. Environmental Protection Agency —
Atmospheric oxidation of sesquiterpenes has been of considerable interest recently because of their likely contribution to ambient organic aerosol, but farnesene... -
Federal
The Photochemical Conversion of Surrogate Emissions for Use in Toxicological Studies: Role of Particulate- and Gas-Phase Products
U.S. Environmental Protection Agency —
The production of photochemical atmospheres under controlled conditions in an irradiation chamber permits the manipulation of parameters that influence the resulting... -
Federal
Chemical composition of isoprene SOA under acidic and non-acidic conditions: Effect of relative humidity
U.S. Environmental Protection Agency —
The effect of acidity and relative humidity on bulk isoprene aerosol parameters has been investigated in several studies, however few measurements have been conducted... -
Federal
Data mining approaches to quantifying the formation of secondary organic aerosol
U.S. Environmental Protection Agency —
This research used data mining approaches to better understand factors affecting the formation of secondary organic aerosol (SOA). Although numerous laboratory and... -
Federal
Photooxidation of farnesene mixtures in the presence of NOx: Analysis of reaction products and their implication to ambient PM2.5
U.S. Environmental Protection Agency —
Chemical analysis of SOA produced from the irradiation of a mixture of α/β-farnesene/NOx was conducted in a 14.5 cubic meter smog chamber. SOA collected on glass-... -
Federal
Trends in the oxidation and relative volatility of chamber-generated secondary organic aerosol
U.S. Environmental Protection Agency —
The relationship between the oxidation state and relative volatility of secondary organic aerosol (SOA) from the oxidation of a wide range of hydrocarbons is... -
Federal
Predicting Thermal Behavior of Secondary Organic Aerosols
U.S. Environmental Protection Agency —
Volume concentrations of secondary organic aerosol (SOA) are measured in 139 steady-state, single precursor hydrocarbon oxidation experiments after passing through a... -
Federal
Secondary Organic Aerosols from Aromatic Hydrocarbons and their Contribution to Fine Particulate Matter in Atlanta, Georgia
U.S. Environmental Protection Agency —
Tracers of secondary organic aerosols (SOA) from thirteen aromatic hydrocarbons were quantified in laboratory smog chamber experiments. Class-specific SOA tracers... -
Federal
Characterization of polar organosulfates in secondary organic aerosol from the unsaturated aldehydes 2-E-pentenal, 2-E-hexenal, and 3-Z-hexenal
U.S. Environmental Protection Agency —
We show in the present study that the unsaturated aldehydes, 2-E-pentenal, 2-E-hexenal and 3-Z-hexenal, are biogenic volatile organic compound (BVOC) precursors for...