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The uninhabited site of the holocaust was not located until four years later, at which time the valley was alive with tens of thousands of jets of steam and gas ranging up to 1,200° F (649° C) issuing from vents in the Earth up to 150 feet (46 m) across.
Shale gas formations have a high content of organic matter that may store significant amounts of adsorbed natural gas, ranging from 20%to80%0% of original-gas-in-place (OGIP).
With regard to construction and demolition (C&D) debris, landfilling was the mainly adopted solution in many European Countries; in particular, gypsum drywalls can produce high concentrations of hydrogen sulphide (H2S) in landfill gas ranging from 7 ppm to 100 ppm.
The data show an almost complete overlap, with both types of gas ranging from nearly zero to more than 7%.
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The estimated heating value for the synthesis gas ranged from 1.27 to 2.85 MJ m−3.
The CO2 concentrations in the aerating gas ranged from 0.3 to 10 mmol mol−1.
δ13C3 of normal mature oil-type gas ranged from −26 ‰ to −34 ‰, while δ13C3 of this kind of natural gas might as heavy as −8.5 ‰.
The methane content of coal-type gas ranged from 75%to92%92 %, and the heavy hydrocarbon content varied greatly from 0.51 % to 19.5%%.
δ13C3 of most natural gas ranged from −8 ‰ to −22 ‰, and carbon isotope ratios of light hydrocarbons arranged in the order of δ13C1 < δ13C2 < δ13C3 > δ13C4.
In a related analysis, the correlation between predicted and observed concentrations of a conservative gas ranged from 0.95 to 0.998 during six tests within a single room test home [ 25].
Because the census blocks in Endicott are relatively small, the study area boundaries closely coincided with the area where the inferred VOC presence in soil gas ranged from 10 µg/m to > 10,000 µg/m (NYSDEC 2003).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com