@Article{acp-2021-751,
AUTHOR = {Cheeseman, M. and Ford, B. and Rosen, Z. and Wendt, E. and DesRosiers, A. and Hill, A. J. and L'Orange, C. and Quinn, C. and Long, M. and Jathar, S. H. and Volckens, J. and Pierce, J. R.},
TITLE = {Technical note: Investigating sub-city gradients of air quality: lessons learned with low-cost PM$_2.5$ and AOD monitors and machine learning},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {2021},
YEAR = {2021},
PAGES = {1--30},
URL = {https://acp.copernicus.org/preprints/acp-2021-751/},
DOI = {10.5194/acp-2021-751}
}