1
|
Reid CE, Considine EM, Maestas MM, Li G. Daily PM 2.5 concentration estimates by county, ZIP code, and census tract in 11 western states 2008-2018. Sci Data 2021; 8:112. [PMID: 33875665 PMCID: PMC8055869 DOI: 10.1038/s41597-021-00891-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/04/2021] [Indexed: 11/20/2022] Open
Abstract
We created daily concentration estimates for fine particulate matter (PM2.5) at the centroids of each county, ZIP code, and census tract across the western US, from 2008-2018. These estimates are predictions from ensemble machine learning models trained on 24-hour PM2.5 measurements from monitoring station data across 11 states in the western US. Predictor variables were derived from satellite, land cover, chemical transport model (just for the 2008-2016 model), and meteorological data. Ten-fold spatial and random CV R2 were 0.66 and 0.73, respectively, for the 2008-2016 model and 0.58 and 0.72, respectively for the 2008-2018 model. Comparing areal predictions to nearby monitored observations demonstrated overall R2 of 0.70 for the 2008-2016 model and 0.58 for the 2008-2018 model, but we observed higher R2 (>0.80) in many urban areas. These data can be used to understand spatiotemporal patterns of, exposures to, and health impacts of PM2.5 in the western US, where PM2.5 levels have been heavily impacted by wildfire smoke over this time period.
Collapse
Affiliation(s)
- Colleen E Reid
- Geography Department, Campus Box 260, University of Colorado Boulder, Boulder, CO, 80309, USA.
- Earth Lab, 4001 Discovery Drive Suite S348 - UCB 611, University of Colorado Boulder, Boulder, CO, 80309, USA.
- Institute of Behavioral Sciences, 483 UCB, University of Colorado Boulder, Boulder, CO, 80309, USA.
| | - Ellen M Considine
- Earth Lab, 4001 Discovery Drive Suite S348 - UCB 611, University of Colorado Boulder, Boulder, CO, 80309, USA
- Applied Mathematics Department, Engineering Center, ECOT 225, 526 UCB, University of Colorado Boulder, Boulder, CO, 80309, USA
| | - Melissa M Maestas
- Earth Lab, 4001 Discovery Drive Suite S348 - UCB 611, University of Colorado Boulder, Boulder, CO, 80309, USA
| | - Gina Li
- Geography Department, Campus Box 260, University of Colorado Boulder, Boulder, CO, 80309, USA
- Earth Lab, 4001 Discovery Drive Suite S348 - UCB 611, University of Colorado Boulder, Boulder, CO, 80309, USA
| |
Collapse
|