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Long-term trends in concentrations and sources of PM2.5–bound metals and elements in central Los Angeles

BiogeochemistryEnvironmental ChemistryEngineeringTrace Element GeochemistryLong-term TrendsAir QualityTrace MetalSource ApportionmentGeochemistryEnvironmental ToxicologyAir PollutionCentral Los AngelesParticulate MatterPm2.5–bound MetalsEarth ScienceTrace Element