These data are made available to the scientific community and public with the understanding that authors of publications and presentations will contact the PI to obtain up-to-date information on the latest version of the data during the early stages of their analysis. Manuscripts that employ these data should be reviewed by the PI before submission to ensure the quality and limitations of the data are represented. Data Disclaimer: Data has undergone extensive quality checks and is available from NOAA-GMD and WDCGG. However, there still exists the potential for these data to be modified at the discretion of NOAA/ESRL Global Monitoring Division. If you have questions regarding the data in this file, please contact: Irina Petropavlovskikh: Irina.Petro@noaa.gov (303-497-6279) Audra McClure-Begley: Audra.mcclure@noaa.gov Please use the following citation for data use: McClure-Begley, A., Petropavlovskikh, I., Oltmans, S., (2014) NOAA Global Monitoring Surface Ozone Network. Station name, Time start-Time end. National Oceanic and Atmospheric Administration, Earth Systems Research Laboratory Global Monitoring Division. Boulder, CO. DATE ACCESSED http://dx.doi.org/10.7289/V57P8WBF STN YEAR MON DAY HR O3(PPB) EUK 2020 09 01 00 9999.99 EUK 2020 09 29 20 32.36 EUK 2020 09 29 21 32.67 EUK 2020 09 29 22 33.56 EUK 2020 09 29 23 33.47 EUK 2020 09 30 00 33.24 EUK 2020 09 30 01 32.91 EUK 2020 09 30 02 32.34 EUK 2020 09 30 03 32.73 EUK 2020 09 30 04 32.75 EUK 2020 09 30 05 32.82 EUK 2020 09 30 06 32.38 EUK 2020 09 30 07 32.12 EUK 2020 09 30 08 32.21 EUK 2020 09 30 09 32.17 EUK 2020 09 30 10 31.96 EUK 2020 09 30 11 31.89 EUK 2020 09 30 12 31.84 EUK 2020 09 30 13 31.66 EUK 2020 09 30 14 31.60 EUK 2020 09 30 15 31.39 EUK 2020 09 30 16 29.77 EUK 2020 09 30 17 29.36 EUK 2020 09 30 18 28.52 EUK 2020 09 30 19 28.19 EUK 2020 09 30 20 27.47 EUK 2020 09 30 21 27.92 EUK 2020 09 30 22 28.52 EUK 2020 09 30 23 29.08