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: Audra McClure-Begley: Audra.mcclure@noaa.gov (303-497-6823) 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) TUN 2018 04 01 00 56.64 TUN 2018 04 01 01 56.09 TUN 2018 04 01 02 55.37 TUN 2018 04 01 03 54.74 TUN 2018 04 01 04 55.12 TUN 2018 04 01 05 54.61 TUN 2018 04 01 06 54.38 TUN 2018 04 01 07 54.08 TUN 2018 04 01 08 53.64 TUN 2018 04 01 09 53.21 TUN 2018 04 01 10 53.01 TUN 2018 04 01 11 52.77 TUN 2018 04 01 12 52.26 TUN 2018 04 01 13 53.50 TUN 2018 04 01 14 54.90 TUN 2018 04 01 15 54.14 TUN 2018 04 01 16 53.97 TUN 2018 04 01 17 54.23 TUN 2018 04 01 18 55.12 TUN 2018 04 01 19 56.75 TUN 2018 04 01 20 58.64 TUN 2018 04 01 21 59.58 TUN 2018 04 01 22 60.75 TUN 2018 04 01 23 61.76 TUN 2018 04 02 00 62.97 TUN 2018 04 02 01 62.42 TUN 2018 04 02 02 62.31 TUN 2018 04 02 03 60.29 TUN 2018 04 02 04 58.51 TUN 2018 04 02 05 57.02 TUN 2018 04 02 06 56.65 TUN 2018 04 02 07 56.47 TUN 2018 04 02 08 57.71 TUN 2018 04 02 09 58.85 TUN 2018 04 02 10 58.15 TUN 2018 04 02 11 57.88 TUN 2018 04 02 12 56.21 TUN 2018 04 02 13 55.81 TUN 2018 04 02 14 56.90 TUN 2018 04 02 15 56.52 TUN 2018 04 02 16 54.59 TUN 2018 04 02 17 54.44 TUN 2018 04 02 18 54.88 TUN 2018 04 02 19 57.18 TUN 2018 04 02 20 60.61 TUN 2018 04 02 21 62.74 TUN 2018 04 02 22 63.85 TUN 2018 04 02 23 63.34 TUN 2018 04 03 00 62.47 TUN 2018 04 03 01 61.58 TUN 2018 04 03 02 62.01 TUN 2018 04 03 03 62.36 TUN 2018 04 03 04 59.25 TUN 2018 04 03 05 52.80 TUN 2018 04 03 06 52.99 TUN 2018 04 03 07 52.89 TUN 2018 04 03 08 55.76 TUN 2018 04 03 09 62.77 TUN 2018 04 03 10 63.08 TUN 2018 04 03 11 60.38 TUN 2018 04 03 12 60.02 TUN 2018 04 03 13 57.09 TUN 2018 04 03 14 58.16 TUN 2018 04 03 15 61.26 TUN 2018 04 03 16 59.29 TUN 2018 04 03 17 58.69 TUN 2018 04 03 18 59.14 TUN 2018 04 03 19 61.23 TUN 2018 04 03 20 60.69 TUN 2018 04 03 21 61.39 TUN 2018 04 03 22 61.22 TUN 2018 04 03 23 61.50 TUN 2018 04 04 00 61.60 TUN 2018 04 04 01 61.98 TUN 2018 04 04 02 62.08 TUN 2018 04 04 03 62.93 TUN 2018 04 04 04 64.24 TUN 2018 04 04 05 63.19 TUN 2018 04 04 06 60.68 TUN 2018 04 04 07 59.09 TUN 2018 04 04 08 58.19 TUN 2018 04 04 09 59.03 TUN 2018 04 04 10 60.00 TUN 2018 04 04 11 59.40 TUN 2018 04 04 12 58.85 TUN 2018 04 04 13 59.50 TUN 2018 04 04 14 59.82 TUN 2018 04 04 15 59.78 TUN 2018 04 04 16 9999.99