Acknowledgements (in alphabetical order)

The Galveston and Deer Park PM 2.5 monitors are shaded in gray below because they were added in 2013 and have not yet collected a full set of PM 2.5 data. TCEQ has plans to add another PM monitor in the HGB region near an HGB roadway (to be co-located with a current or future NO 2 monitor). ................
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