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Natural ResourcesEcologyEnvironmental SciencesAir PollutionUrban EcologyUrban ForestryAir PollutantsAir QualityUrban Canopy StructureUrban Tree BiologyUrban Tree CanopyUrban Tree EcologyAir Pollution RemovalPollutant RemovalUrban Air Pollution EcologyUrban Forest Ecosystem Service AssessmentUrban Tree Canopy BiogeochemistryUrban Tree Canopy EffectsUrban Tree Physiology
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John Bongaarts, United Nations Environment Programme · Population and Development Review · 1998 · 663 citations