prov:value
| - (94) Emissions of [the following pollutants:] water vapor, oxygen, [carbon dioxide,] nitrogen, inert gases such as argon, helium, neon, krypton and xenon, hydrogen, [simple asphyxiants including methane and propane] ethane, and trace constituents included in raw materials [or byproducts,] where the constituents are less than one percent by weight for any regulated air pollutant, or 0.1 percent by
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