trace gas

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trace gas

any gas that represents an extremely small or insignificant portion of a mixture of gases. See also gas-scavenging system.
References in periodicals archive ?
The determination of climate-effective halogenated trace gases and volatile reactive organic compounds (vocs) in ambient air (ozone precursors) is an integral part of the gaw measurement program and similarly important as the measurement of carbon dioxide and methane.
Burning off the methane with a flare can help control landfill odors created by those trace gases, he said, and prevent the flammable gas from leaching off-site through the soil.
In addition, the Colour and Stereo Surface Imaging System (CaSSIS) on board the TGO will take its first photos of surface features on Mars this week, allowing scientists to identify sources of trace gases.
The spacecraft on which the Schiaparelli lander travelled to Mars, Trace Gas Orbiter (TGO), carries an atmospheric probe to study trace gases such as methane around the planet.
Unlike disposable gas filters that are time consuming, costly and cannot remove gases such as neon, argon or nitrogen, based upon patented Pressure Swing Adsorption (PSA) technology, these gas purifiers remove all of contaminant trace gases and self-clean every cycle.
Meanwhile, once it begins science operations at the end of 2017, the orbiter will search out evidence for trace gases in the Martian atmosphere.
Although the molecular sieves offered by zeolites have a demonstrated ability to remove trace gases, including C[O.
TGO is equipped with ultra-sensitive instruments for detecting trace gases in the Martian atmosphere, including methane which can be a sign of life.
TGO is equipped with highly sensitive instruments for detecting trace gases in the Martian atmosphere, including methane which can be a sign of life.
It uses sophisticated software for fully automated operation and real-time quantitative analysis of trace gases in air or other gas mixtures.
Army Edgewood Chemical Biological Center, fills the need for a highly sensitive standoff chemical sensor that can remotely and quickly detect toxic trace gases and aerosols prior to human endangerment.
Because the BDC describes the circulation responsible for the distribution of trace gases in the stratosphere, it has both a mean and distributed mass flux component and a quasi-horizontal mixing, or redistribution component (Fig.