Trends in Fine Particulate Matter and Source Contributions over the Last Decade in Central Los Angeles (2014-2024): Policy-Driven Declines, COVID-19 Disruptions, and Wildfires
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This study analyzed speciated PM2.5 data (2014-2024) from the Chemical Speciation Network in central Los Angeles and used positive matrix factorization (PMF) to identify and apportion sources, and quantified changes in their contributions over time to examine ... ...
