Nitrous OxideCarbon DioxideCarbonAnesthetics, InhalationAnesthesia, InhalationNitric Oxide SynthaseNitrogen DioxidePartial PressureCarbon MonoxideOxygenIsofluraneSulfur DioxideCapnographyMethyl EthersInsufflationAtmosphereNanotubes, CarbonRespirationOxidesHalothaneXenonAnesthesia, GeneralAnesthetics, CombinedDenitrificationPulmonary Gas ExchangeHypercapniaBlood Gas AnalysisGas ScavengersCarbon IsotopesBlood Gas Monitoring, TranscutaneousNitric Oxide Synthase Type IINitrogenChromatography, Supercritical FluidNitritesGasesFentanylNitratesEnfluraneTidal VolumeLasers, GasCarbon SequestrationPropofolEthersAirPneumoperitoneum, ArtificialMethaneOxygen ConsumptionAnestheticsOxidoreductasesAnesthetics, IntravenousAnesthesia, DentalCarbon Monoxide PoisoningAlfentanilNitrogen OxidesGreenhouse EffectAnesthesia Recovery PeriodDry IceNitric Oxide Synthase Type IIIAcetyleneEmbolism, AirAcidosis, RespiratoryOxidation-ReductionCerebrovascular Circulation5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseIntubation, IntratrachealHydrogen-Ion ConcentrationAnesthesiaBicarbonatesAnesthesia, IntravenousCarbon FootprintSoilNitric Oxide Synthase Type IAnaerobiosisTime FactorsDose-Response Relationship, DrugMonitoring, IntraoperativePseudomonasPreanesthetic MedicationHypocapniaAnalgesics, Non-NarcoticThorium DioxideAir PollutantsNitrificationConscious SedationEuthanasia, AnimalRespiratory Dead SpaceVentilationZinc OxideHemodynamicsEcological Systems, ClosedIntraoperative PeriodThiopentalCarbon TetrachlorideAnesthesia, Closed-CircuitCarbonic AnhydrasesAerobiosisBiomassPhotosynthesisPressureTemperature