The Regional Haze Rule Summary summary data through 2014 are now available in ascii files. April 14, 2016 by Anthony Prenni
A new data advisory has been posted addressing a change in the reporting of filter absorption. April 14, 2016 by Anthony Prenni
Three new data advisories have been added addressing the re-delivery of IMPROVE data from 2005 – 2014; a change to how organic artifacts are corrected; and a change in the reporting of filter absorption. April 14, 2016 by Anthony Prenni