SootVehicle EmissionsAtmosphereFuel OilsPositron-Emission TomographyHexanesOtoacoustic Emissions, SpontaneousCarbonKeroseneAcenaphthenesAir PollutantsPolycyclic CompoundsTomography, Emission-ComputedGasolineParticle SizeFluorodeoxyglucose F18Particulate MatterRadiopharmaceuticalsCarcinogens, EnvironmentalAerosolsFiresPolycyclic Hydrocarbons, AromaticChemistry, OrganicTarsEnvironmental MonitoringOrganic ChemicalsTomography, Emission-Computed, Single-PhotonInhalation ExposureNitrous AcidIndustrial WasteAir PollutionPetroleumOptics and PhotonicsGreenhouse EffectSulfuric AcidsFluorine RadioisotopesRefractometrySpectrometry, FluorescenceSunlightDustCarbon Footprint