SootMethaneAir PollutantsEnvironmental PollutantsMethylococcaceaeVehicle EmissionsWater PollutantsAir PollutionParticulate MatterEnvironmental MonitoringAtmosphereWater Pollutants, ChemicalOzoneNitrogen DioxideOxygenasesMethylococcus capsulatusSulfur DioxideEuryarchaeotaCarbonFuel OilsPolycyclic CompoundsParticle SizeHexanesPolycyclic Hydrocarbons, AromaticSoil PollutantsEnvironmental ExposureOrganic ChemicalsAcenaphthenesKeroseneMethylosinus trichosporiumInhalation ExposureHydrocarbons, ChlorinatedCarcinogens, EnvironmentalIndustrial WasteHydrogenBiodegradation, EnvironmentalAerosolsArchaeaMethylocystaceaePetroleumPolychlorinated BiphenylsGeologic SedimentsEthaneSulfuric AcidsGasolineFiresNitrous AcidEnvironmental PollutionGasesChemistry, OrganicDNA, ArchaealAir Pollution, IndoorMethanolTarsAnaerobiosisOxidation-ReductionBacteriaMethanosarcinalesAir Pollutants, OccupationalEpidemiological MonitoringSoil MicrobiologyDustOxidants, PhotochemicalCarbon MonoxideTrichloroethyleneGreenhouse EffectMicrobial ConsortiaMethanomicrobiaceaeRNA, Ribosomal, 16SSulfatesMolecular Sequence DataHydrocarbonsMethanosarcinaceaeRespiratory Tract DiseasesFermentationCitiesCarbon DioxideUnited States Environmental Protection AgencyBenzeneSunlightOptics and PhotonicsRumenAcetatesHexachlorobenzenePhylogenyMesnaMethanomicrobialesFossil FuelsRefractometrySeawaterAtmosphere Exposure ChambersWetlandsMethanobacteriaceaeMethylosinusBeijerinckiaceaeFresh WaterMetals, HeavyEthyl EthersDeltaproteobacteriaTime Factors