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Ambient air quality in the holy city of Makkah: A source apportionment with elemental enrichment factors (EFs) and factor analysis (PMF)

Environmental ChemistryEnvironmental MonitoringEngineeringAir Pollution MeasurementAmbient Air QualityEnvironmental EngineeringEnvironmental HealthEnvironmental Impact AssessmentAir Quality MonitoringAir QualityHoly CityUrban Air QualitySource ApportionmentElemental Enrichment FactorsAir PollutionParticulate MatterUrban ClimateSocial Sciences