Now showing items 1-10 of 131
Measurements of stable isotope ratios (13CH4/12CH4) in landfill methane using a tunable diode laser absorption spectrometer (TDLAS)
Variations in the isotopic composition (δ13C, δD) of methane produced within a landfill site near Mainz, Germany, were studied using a newly developed tunable diode laser absorption spectrometer (TDLAS) method. Additional ...
Visible intracavity laser spectroscopy using a step-scan fourier transform interferometer
(Optical Society of America, 1997)
Light Nonmethane Hydrocarbons in Seawater
A database of dissolved C2-C4 hydrocarbons in the surface water of the oceans is compiled based on more than 1000 measurements. Hydrocarbon emission rates are calculated using a diffusive microlayer approach and climatologic ...
The Production of Atmospheric NO2 and N2O from a Fertilized Agricultural Soil
The source strength of atmospheric trace gases from rural or remote locations must be quantified in order to assess the effect of such inputs on the background tropospheric chemistry. To assess the importance of biological ...
DMS Emissions to the Atmosphere from the Lakes of the Canadian Boreal Region
Dimethyl sulfide (DMS) concentrations were measured over 2 years in 10 lakes situated in northwestern Ontario. Concentrations varied from 0.1 nmol L−1 to 100 nmol L−1 (geometric mean of 1.2 nmol L−1) during the ice-free ...
Hydrocarbon measurements in the spring Arctic troposphere during the ARCTOC 95 campaign
The hydrocarbon measurements made during the ARCTOC 95 field campaign (16 April – 10 June 1995) at Ny Ålesund, Spitsbergen (78°55''N, 11°56'E) allow the estimation of Cl and Br atom concentrations during periods of low ...
Development of a tunable diode laser absorption spectrometer for measurement of the 13C/12C ratio in methane
A tunable diode laser absorption spectrometer (TDLAS) for measuring the ratio in methane has been developed. Using a triple path arrangement the spectra of the CH4 sample, a isotope standard and pure 13CH4 are recorded ...
Benzene and toluene in New Zealand air
Emissions of organic trace gases from savanna fires in Southern Africa during SAFARI 92 and their impact on the formation of tropospheric ozone
CO, CH4, and organic trace gases were measured in air samples collected during several flights with a DC‐3 aircraft through the plumes from savanna fires and agricultural fires during the SAFARI 92 campaign in southern ...