Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Tai-Yih Chen"'
Publikováno v:
Atmospheric Environment. 39:2867-2878
Ambient air samples were collected at 13 air quality monitoring stations in Kaohsiung city, Kaohsiung county, and Pingtung county (KKP) to investigate the composition and spatial distribution of C2–C10 non-methane hydrocarbons (NMHCs) in southern T
Publikováno v:
Analytica Chimica Acta. 448:187-193
A fully automated gas chromatographic system was constructed to perform in situ measurement of atmospheric methane. To reduce cost, this system avoided the use of a conventional gas chromatography (GC), instead a direct resistive heated molecular sie
Publikováno v:
Geophysical Research Letters. 28:2193-2196
The leakage of unburned liquefied petroleum gas (LPG) is a major source of urban nonmethane hydrocarbons (NMHCs) in the air of Santiago, Chile. Roughly 5% of the LPG that is sold in Santiago leaks in its unburned form to the atmosphere. Because of th
Publikováno v:
Atmospheric Environment. 34:4393-4398
This study investigates the feasibility of using CCl 4 in the background air as a concentration reference to calibrate synthetic mixtures. A metal vacuum line was constructed for preparing diluted standard mixtures at parts per billion by volume (ppb
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:9321-9333
Observations over the tropics from the Pacific Exploratory Mission-Tropics A Experiment are analyzed using a one-dimensional model with an explicit formulation for convective transport. Adopting tropical convective mass fluxes from a general circulat
Autor:
G. W. Sachse, Donald R. Blake, Stephanie A. Vay, Anne M. Thompson, Isobel J. Simpson, Nicola J. Blake, Tai-Yih Chen, F. S. Rowland, Jimena P. Lopez, Yutaka Kondo, Bruce E. Anderson, Barkley C. Sive, Henry E. Fuelberg
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:3785-3793
Mixing ratios of nonmethane hydrocarbons (NMHCs) were not enhanced in whole air samples collected within the North Atlantic Flight Corridor (NAFC) during the fall of 1997. The investigation was conducted aboard NASA's DC-8 research aircraft, as part
Publikováno v:
Chemosphere - Global Change Science. 2:11-22
Concentration profiles of C2–C6 non-methane hydrocarbons (NMHCs) were obtained in metropolitan Taipei, Taiwan based on 50 air samples collected simultaneously during an evening traffic rush hour. Although motor vehicle exhaust contributes most of t
Publikováno v:
Geophysical Research Letters. 26:283-286
Between June 1 and June 8, 1996, 144 whole air samples were collected in Santiago, Chile. The temporal and geographical enhancement of CH3Br correlated with incomplete combustion tracers emitted from vehicles during the morning commute. From these, a
Autor:
Glen W. Sachse, F. Sherwood Rowland, Nicola J. Blake, J. E. Collins, Bruce E. Anderson, Tai-Yih Chen, Donald R. Blake
Publikováno v:
Journal of Geophysical Research: Atmospheres. 102:28315-28331
Nonmethane hydrocarbons (NMHCs) and halocarbons were measured in the troposphere over the northwestern Pacific as part of the airborne component of NASA's Pacific Exploratory Mission-West Phase B (PEM-West B). This study took place in late winter of
Autor:
J. E. Collins, F. Sherwood Rowland, Bruce E. Anderson, Nicola J. Blake, Tai-Yih Chen, Barkley C. Sive, Glen W. Sachse, Donald R. Blake
Publikováno v:
Journal of Geophysical Research: Atmospheres. 101:24151-24164
The NASA TRACE A experiment (September – October 1992) investigated effects of dry season biomass burning emissions from both South America and southern Africa on the tropical South Atlantic troposphere. Whole air canister samples were collected ab