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) BOS 2019 05 01 00 10.65 BOS 2019 05 01 01 9.62 BOS 2019 05 01 02 8.87 BOS 2019 05 01 03 8.40 BOS 2019 05 01 04 8.91 BOS 2019 05 01 05 8.54 BOS 2019 05 01 06 9.33 BOS 2019 05 01 07 9.38 BOS 2019 05 01 08 9.17 BOS 2019 05 01 09 8.21 BOS 2019 05 01 10 6.72 BOS 2019 05 01 11 5.16 BOS 2019 05 01 12 4.68 BOS 2019 05 01 13 4.75 BOS 2019 05 01 14 5.53 BOS 2019 05 01 15 6.57 BOS 2019 05 01 16 7.75 BOS 2019 05 01 17 11.85 BOS 2019 05 01 18 13.22 BOS 2019 05 01 19 15.75 BOS 2019 05 01 20 18.15 BOS 2019 05 01 21 20.47 BOS 2019 05 01 22 22.15 BOS 2019 05 01 23 21.44 BOS 2019 05 02 00 18.57 BOS 2019 05 02 01 18.74 BOS 2019 05 02 02 19.64 BOS 2019 05 02 03 18.66 BOS 2019 05 02 04 19.52 BOS 2019 05 02 05 17.73 BOS 2019 05 02 06 11.62 BOS 2019 05 02 07 8.08 BOS 2019 05 02 08 7.19 BOS 2019 05 02 09 7.28 BOS 2019 05 02 10 6.02 BOS 2019 05 02 11 4.90 BOS 2019 05 02 12 5.59 BOS 2019 05 02 13 6.25 BOS 2019 05 02 14 9.33 BOS 2019 05 02 15 15.13 BOS 2019 05 02 16 17.32 BOS 2019 05 02 17 20.75 BOS 2019 05 02 18 24.23 BOS 2019 05 02 19 26.19 BOS 2019 05 02 20 28.08 BOS 2019 05 02 21 29.40 BOS 2019 05 02 22 29.37 BOS 2019 05 02 23 27.55 BOS 2019 05 03 00 26.60 BOS 2019 05 03 01 16.45 BOS 2019 05 03 02 21.60 BOS 2019 05 03 03 26.36 BOS 2019 05 03 04 20.87 BOS 2019 05 03 05 20.40 BOS 2019 05 03 06 16.21 BOS 2019 05 03 07 18.20 BOS 2019 05 03 08 17.55 BOS 2019 05 03 09 19.20 BOS 2019 05 03 10 18.14 BOS 2019 05 03 11 18.92 BOS 2019 05 03 12 24.54 BOS 2019 05 03 13 21.05 BOS 2019 05 03 14 22.52 BOS 2019 05 03 15 27.84 BOS 2019 05 03 16 31.02 BOS 2019 05 03 17 32.17 BOS 2019 05 03 18 34.28 BOS 2019 05 03 19 34.83 BOS 2019 05 03 20 34.70 BOS 2019 05 03 21 36.81 BOS 2019 05 03 22 37.89 BOS 2019 05 03 23 35.93 BOS 2019 05 04 00 36.17 BOS 2019 05 04 01 31.65 BOS 2019 05 04 02 39.92 BOS 2019 05 04 03 30.74 BOS 2019 05 04 04 23.97 BOS 2019 05 04 05 25.91 BOS 2019 05 04 06 28.52 BOS 2019 05 04 07 24.91 BOS 2019 05 04 08 23.81 BOS 2019 05 04 09 20.44 BOS 2019 05 04 10 20.19 BOS 2019 05 04 11 13.18 BOS 2019 05 04 12 18.35 BOS 2019 05 04 13 27.56 BOS 2019 05 04 14 28.07 BOS 2019 05 04 15 30.56 BOS 2019 05 04 16 31.20 BOS 2019 05 04 17 32.63 BOS 2019 05 04 18 38.08 BOS 2019 05 04 19 37.55 BOS 2019 05 04 20 39.34 BOS 2019 05 04 21 40.46 BOS 2019 05 04 22 40.21 BOS 2019 05 04 23 40.27 BOS 2019 05 05 00 36.84 BOS 2019 05 05 01 42.23 BOS 2019 05 05 02 37.35 BOS 2019 05 05 03 36.90 BOS 2019 05 05 04 32.91 BOS 2019 05 05 05 37.53 BOS 2019 05 05 06 36.03 BOS 2019 05 05 07 33.79 BOS 2019 05 05 08 31.41 BOS 2019 05 05 09 34.84 BOS 2019 05 05 10 36.31 BOS 2019 05 05 11 36.85 BOS 2019 05 05 12 39.00 BOS 2019 05 05 13 37.56 BOS 2019 05 05 14 40.44 BOS 2019 05 05 15 40.85 BOS 2019 05 05 16 35.86 BOS 2019 05 05 17 31.58 BOS 2019 05 05 18 32.24 BOS 2019 05 05 19 38.17 BOS 2019 05 05 20 41.20 BOS 2019 05 05 21 39.21 BOS 2019 05 05 22 43.97 BOS 2019 05 05 23 38.95 BOS 2019 05 06 00 41.14 BOS 2019 05 06 01 41.53 BOS 2019 05 06 02 41.81 BOS 2019 05 06 03 37.42 BOS 2019 05 06 04 29.81 BOS 2019 05 06 05 35.35 BOS 2019 05 06 06 36.64 BOS 2019 05 06 07 27.43 BOS 2019 05 06 08 21.03 BOS 2019 05 06 09 12.78 BOS 2019 05 06 10 11.11 BOS 2019 05 06 11 10.21 BOS 2019 05 06 12 10.23 BOS 2019 05 06 13 14.36 BOS 2019 05 06 14 20.66 BOS 2019 05 06 15 24.11 BOS 2019 05 06 16 26.91 BOS 2019 05 06 17 28.23 BOS 2019 05 06 18 29.17 BOS 2019 05 06 19 35.12 BOS 2019 05 06 20 33.70 BOS 2019 05 06 21 34.05 BOS 2019 05 06 22 37.67 BOS 2019 05 06 23 38.28 BOS 2019 05 07 00 38.45 BOS 2019 05 07 01 30.35 BOS 2019 05 07 02 26.22 BOS 2019 05 07 03 20.91 BOS 2019 05 07 04 14.04 BOS 2019 05 07 05 11.54 BOS 2019 05 07 06 10.82 BOS 2019 05 07 07 9.81 BOS 2019 05 07 08 7.80 BOS 2019 05 07 09 6.18 BOS 2019 05 07 10 6.20 BOS 2019 05 07 11 5.65 BOS 2019 05 07 12 5.24 BOS 2019 05 07 13 4.22 BOS 2019 05 07 14 4.31 BOS 2019 05 07 15 3.72 BOS 2019 05 07 16 4.44 BOS 2019 05 07 17 4.62 BOS 2019 05 07 18 4.56 BOS 2019 05 07 19 4.80 BOS 2019 05 07 20 5.12 BOS 2019 05 07 21 6.91 BOS 2019 05 07 22 8.62 BOS 2019 05 07 23 8.17 BOS 2019 05 08 00 7.01 BOS 2019 05 08 01 7.15 BOS 2019 05 08 02 6.45 BOS 2019 05 08 03 7.17 BOS 2019 05 08 04 7.08 BOS 2019 05 08 05 7.59 BOS 2019 05 08 06 6.32 BOS 2019 05 08 07 4.87 BOS 2019 05 08 08 3.78 BOS 2019 05 08 09 3.47 BOS 2019 05 08 10 3.06 BOS 2019 05 08 11 3.23 BOS 2019 05 08 12 4.39 BOS 2019 05 08 13 8.30 BOS 2019 05 08 14 6.68 BOS 2019 05 08 15 7.22 BOS 2019 05 08 16 7.72 BOS 2019 05 08 17 7.36 BOS 2019 05 08 18 8.59 BOS 2019 05 08 19 10.92 BOS 2019 05 08 20 15.58 BOS 2019 05 08 21 13.86 BOS 2019 05 08 22 15.77 BOS 2019 05 08 23 15.07 BOS 2019 05 09 00 16.85 BOS 2019 05 09 01 16.74 BOS 2019 05 09 02 9999.99 BOS 2019 05 09 03 13.36 BOS 2019 05 09 04 16.50 BOS 2019 05 09 05 18.48 BOS 2019 05 09 06 13.12 BOS 2019 05 09 07 11.19 BOS 2019 05 09 08 11.92 BOS 2019 05 09 09 12.72 BOS 2019 05 09 10 11.26 BOS 2019 05 09 11 11.97 BOS 2019 05 09 12 9.45 BOS 2019 05 09 13 11.30 BOS 2019 05 09 14 10.87 BOS 2019 05 09 15 12.39 BOS 2019 05 09 16 16.72 BOS 2019 05 09 17 19.28 BOS 2019 05 09 18 21.21 BOS 2019 05 09 19 24.27 BOS 2019 05 09 20 25.53 BOS 2019 05 09 21 23.24 BOS 2019 05 09 22 22.88 BOS 2019 05 09 23 23.18 BOS 2019 05 10 00 21.81 BOS 2019 05 10 01 15.97 BOS 2019 05 10 02 12.23 BOS 2019 05 10 03 14.35 BOS 2019 05 10 04 10.66 BOS 2019 05 10 05 9.26 BOS 2019 05 10 06 9.37 BOS 2019 05 10 07 9.99 BOS 2019 05 10 08 11.82 BOS 2019 05 10 09 12.12 BOS 2019 05 10 10 10.20 BOS 2019 05 10 11 8.93 BOS 2019 05 10 12 10.82 BOS 2019 05 10 13 10.74 BOS 2019 05 10 14 9.22 BOS 2019 05 10 15 10.80 BOS 2019 05 10 16 14.09 BOS 2019 05 10 17 17.91 BOS 2019 05 10 18 18.31 BOS 2019 05 10 19 18.64 BOS 2019 05 10 20 17.56 BOS 2019 05 10 21 16.66 BOS 2019 05 10 22 18.85 BOS 2019 05 10 23 21.10 BOS 2019 05 11 00 18.63 BOS 2019 05 11 01 13.86 BOS 2019 05 11 02 9.55 BOS 2019 05 11 03 10.89 BOS 2019 05 11 04 11.84 BOS 2019 05 11 05 11.30 BOS 2019 05 11 06 11.44 BOS 2019 05 11 07 12.20 BOS 2019 05 11 08 14.08 BOS 2019 05 11 09 15.74 BOS 2019 05 11 10 18.54 BOS 2019 05 11 11 18.00 BOS 2019 05 11 12 18.11 BOS 2019 05 11 13 16.11 BOS 2019 05 11 14 18.47 BOS 2019 05 11 15 23.67 BOS 2019 05 11 16 23.58 BOS 2019 05 11 17 26.69 BOS 2019 05 11 18 27.71 BOS 2019 05 11 19 28.98 BOS 2019 05 11 20 30.45 BOS 2019 05 11 21 31.77 BOS 2019 05 11 22 31.54 BOS 2019 05 11 23 31.11 BOS 2019 05 12 00 30.83 BOS 2019 05 12 01 25.13 BOS 2019 05 12 02 17.83 BOS 2019 05 12 03 16.55 BOS 2019 05 12 04 19.74 BOS 2019 05 12 05 17.29 BOS 2019 05 12 06 11.20 BOS 2019 05 12 07 10.83 BOS 2019 05 12 08 11.94 BOS 2019 05 12 09 13.32 BOS 2019 05 12 10 13.32 BOS 2019 05 12 11 12.84 BOS 2019 05 12 12 10.50 BOS 2019 05 12 13 14.18 BOS 2019 05 12 14 15.28 BOS 2019 05 12 15 18.81 BOS 2019 05 12 16 22.89 BOS 2019 05 12 17 26.54 BOS 2019 05 12 18 29.68 BOS 2019 05 12 19 31.31 BOS 2019 05 12 20 30.09 BOS 2019 05 12 21 29.68 BOS 2019 05 12 22 30.64 BOS 2019 05 12 23 31.78 BOS 2019 05 13 00 29.65 BOS 2019 05 13 01 21.75 BOS 2019 05 13 02 20.59 BOS 2019 05 13 03 20.90 BOS 2019 05 13 04 19.44 BOS 2019 05 13 05 19.27 BOS 2019 05 13 06 22.75 BOS 2019 05 13 07 22.34 BOS 2019 05 13 08 18.46 BOS 2019 05 13 09 10.19 BOS 2019 05 13 10 15.98 BOS 2019 05 13 11 16.79 BOS 2019 05 13 12 12.44 BOS 2019 05 13 13 14.65 BOS 2019 05 13 14 21.41 BOS 2019 05 13 15 25.13 BOS 2019 05 13 16 26.29 BOS 2019 05 13 17 30.17 BOS 2019 05 13 18 33.18 BOS 2019 05 13 19 34.55 BOS 2019 05 13 20 33.07 BOS 2019 05 13 21 27.26 BOS 2019 05 13 22 31.64 BOS 2019 05 13 23 30.68 BOS 2019 05 14 00 26.90 BOS 2019 05 14 01 20.03 BOS 2019 05 14 02 22.45 BOS 2019 05 14 03 22.91 BOS 2019 05 14 04 23.95 BOS 2019 05 14 05 21.86 BOS 2019 05 14 06 21.49 BOS 2019 05 14 07 21.93 BOS 2019 05 14 08 22.53 BOS 2019 05 14 09 24.99 BOS 2019 05 14 10 19.36 BOS 2019 05 14 11 18.80 BOS 2019 05 14 12 13.12 BOS 2019 05 14 13 20.03 BOS 2019 05 14 14 24.10 BOS 2019 05 14 15 30.32 BOS 2019 05 14 16 32.23 BOS 2019 05 14 17 31.03 BOS 2019 05 14 18 28.84 BOS 2019 05 14 19 30.74 BOS 2019 05 14 20 32.08 BOS 2019 05 14 21 30.19 BOS 2019 05 14 22 31.98 BOS 2019 05 14 23 31.68 BOS 2019 05 15 00 24.70 BOS 2019 05 15 01 25.50 BOS 2019 05 15 02 25.04 BOS 2019 05 15 03 18.72 BOS 2019 05 15 04 27.75 BOS 2019 05 15 05 24.80 BOS 2019 05 15 06 18.80 BOS 2019 05 15 07 21.02 BOS 2019 05 15 08 18.91 BOS 2019 05 15 09 18.68 BOS 2019 05 15 10 18.61 BOS 2019 05 15 11 18.54 BOS 2019 05 15 12 18.29 BOS 2019 05 15 13 22.19 BOS 2019 05 15 14 25.21 BOS 2019 05 15 15 27.64 BOS 2019 05 15 16 26.98 BOS 2019 05 15 17 28.69 BOS 2019 05 15 18 29.94 BOS 2019 05 15 19 36.74 BOS 2019 05 15 20 33.56 BOS 2019 05 15 21 34.90 BOS 2019 05 15 22 36.31 BOS 2019 05 15 23 26.03 BOS 2019 05 16 00 9.62 BOS 2019 05 16 01 20.37 BOS 2019 05 16 02 22.49 BOS 2019 05 16 03 24.54 BOS 2019 05 16 04 24.36 BOS 2019 05 16 05 22.39 BOS 2019 05 16 06 22.73 BOS 2019 05 16 07 22.20 BOS 2019 05 16 08 21.32 BOS 2019 05 16 09 21.16 BOS 2019 05 16 10 21.24 BOS 2019 05 16 11 21.11 BOS 2019 05 16 12 19.30 BOS 2019 05 16 13 18.53 BOS 2019 05 16 14 15.05 BOS 2019 05 16 15 18.84 BOS 2019 05 16 16 20.23 BOS 2019 05 16 17 24.85 BOS 2019 05 16 18 25.31 BOS 2019 05 16 19 22.35 BOS 2019 05 16 20 32.80 BOS 2019 05 16 21 35.75 BOS 2019 05 16 22 32.79 BOS 2019 05 16 23 27.86 BOS 2019 05 17 00 17.84 BOS 2019 05 17 01 18.15 BOS 2019 05 17 02 20.97 BOS 2019 05 17 03 20.88 BOS 2019 05 17 04 21.67 BOS 2019 05 17 05 22.16 BOS 2019 05 17 06 28.41 BOS 2019 05 17 07 28.19 BOS 2019 05 17 08 20.49 BOS 2019 05 17 09 16.96 BOS 2019 05 17 10 10.00 BOS 2019 05 17 11 10.11 BOS 2019 05 17 12 10.69 BOS 2019 05 17 13 13.23 BOS 2019 05 17 14 20.53 BOS 2019 05 17 15 25.00 BOS 2019 05 17 16 24.72 BOS 2019 05 17 17 23.99 BOS 2019 05 17 18 27.99 BOS 2019 05 17 19 28.41 BOS 2019 05 17 20 21.81 BOS 2019 05 17 21 16.88 BOS 2019 05 17 22 18.80 BOS 2019 05 17 23 22.30 BOS 2019 05 18 00 20.65 BOS 2019 05 18 01 22.95 BOS 2019 05 18 02 17.65 BOS 2019 05 18 03 18.06 BOS 2019 05 18 04 10.23 BOS 2019 05 18 05 18.14 BOS 2019 05 18 06 18.98 BOS 2019 05 18 07 22.25 BOS 2019 05 18 08 14.27 BOS 2019 05 18 09 12.68 BOS 2019 05 18 10 17.58 BOS 2019 05 18 11 29.42 BOS 2019 05 18 12 19.17 BOS 2019 05 18 13 16.79 BOS 2019 05 18 14 19.56 BOS 2019 05 18 15 19.20 BOS 2019 05 18 16 21.03 BOS 2019 05 18 17 25.12 BOS 2019 05 18 18 26.98 BOS 2019 05 18 19 28.06 BOS 2019 05 18 20 28.88 BOS 2019 05 18 21 30.22 BOS 2019 05 18 22 27.91 BOS 2019 05 18 23 26.31 BOS 2019 05 19 00 27.13 BOS 2019 05 19 01 27.33 BOS 2019 05 19 02 17.32 BOS 2019 05 19 03 9.37 BOS 2019 05 19 04 12.46 BOS 2019 05 19 05 13.38 BOS 2019 05 19 06 14.17 BOS 2019 05 19 07 14.54 BOS 2019 05 19 08 15.00 BOS 2019 05 19 09 14.80 BOS 2019 05 19 10 17.65 BOS 2019 05 19 11 18.12 BOS 2019 05 19 12 14.98 BOS 2019 05 19 13 12.95 BOS 2019 05 19 14 14.04 BOS 2019 05 19 15 15.17 BOS 2019 05 19 16 15.64 BOS 2019 05 19 17 17.53 BOS 2019 05 19 18 17.55 BOS 2019 05 19 19 18.58 BOS 2019 05 19 20 18.25 BOS 2019 05 19 21 19.34 BOS 2019 05 19 22 20.37 BOS 2019 05 19 23 19.18 BOS 2019 05 20 00 11.48 BOS 2019 05 20 01 8.05 BOS 2019 05 20 02 8.56 BOS 2019 05 20 03 12.00 BOS 2019 05 20 04 12.17 BOS 2019 05 20 05 12.38 BOS 2019 05 20 06 12.08 BOS 2019 05 20 07 11.17 BOS 2019 05 20 08 12.48 BOS 2019 05 20 09 12.23 BOS 2019 05 20 10 10.97 BOS 2019 05 20 11 10.84 BOS 2019 05 20 12 11.04 BOS 2019 05 20 13 12.56 BOS 2019 05 20 14 11.60 BOS 2019 05 20 15 11.26 BOS 2019 05 20 16 11.22 BOS 2019 05 20 17 10.73 BOS 2019 05 20 18 10.07 BOS 2019 05 20 19 8.57 BOS 2019 05 20 20 8.25 BOS 2019 05 20 21 8.25 BOS 2019 05 20 22 8.63 BOS 2019 05 20 23 8.51 BOS 2019 05 21 00 8.56 BOS 2019 05 21 01 8.50 BOS 2019 05 21 02 6.77 BOS 2019 05 21 03 6.55 BOS 2019 05 21 04 4.27 BOS 2019 05 21 05 4.20 BOS 2019 05 21 06 3.19 BOS 2019 05 21 07 2.99 BOS 2019 05 21 08 9999.99 BOS 2019 05 21 09 9999.99 BOS 2019 05 28 18 32.48 BOS 2019 05 28 19 31.44 BOS 2019 05 28 20 13.83 BOS 2019 05 28 21 13.16 BOS 2019 05 28 22 17.81 BOS 2019 05 28 23 15.13 BOS 2019 05 29 00 12.86 BOS 2019 05 29 01 14.20 BOS 2019 05 29 02 15.12 BOS 2019 05 29 03 12.33 BOS 2019 05 29 04 11.27 BOS 2019 05 29 05 11.02 BOS 2019 05 29 06 10.68 BOS 2019 05 29 07 8.20 BOS 2019 05 29 08 9.94 BOS 2019 05 29 09 12.20 BOS 2019 05 29 10 9.70 BOS 2019 05 29 11 6.30 BOS 2019 05 29 12 11.04 BOS 2019 05 29 13 11.49 BOS 2019 05 29 14 13.66 BOS 2019 05 29 15 14.34 BOS 2019 05 29 16 17.61 BOS 2019 05 29 17 19.18 BOS 2019 05 29 18 22.33 BOS 2019 05 29 19 27.77 BOS 2019 05 29 20 29.58 BOS 2019 05 29 21 28.78 BOS 2019 05 29 22 9999.99 BOS 2019 05 29 23 29.00 BOS 2019 05 30 00 25.50 BOS 2019 05 30 01 18.82 BOS 2019 05 30 02 11.54 BOS 2019 05 30 03 9.50 BOS 2019 05 30 04 9.37 BOS 2019 05 30 05 8.10 BOS 2019 05 30 06 9.10 BOS 2019 05 30 07 10.20 BOS 2019 05 30 08 10.61 BOS 2019 05 30 09 9.75 BOS 2019 05 30 10 11.17 BOS 2019 05 30 11 10.49 BOS 2019 05 30 12 11.52 BOS 2019 05 30 13 13.78 BOS 2019 05 30 14 17.27 BOS 2019 05 30 15 22.84 BOS 2019 05 30 16 29.69 BOS 2019 05 30 17 31.16 BOS 2019 05 30 18 33.49 BOS 2019 05 30 19 33.17 BOS 2019 05 30 20 32.88 BOS 2019 05 30 21 32.48 BOS 2019 05 30 22 31.49 BOS 2019 05 30 23 33.34 BOS 2019 05 31 00 26.90 BOS 2019 05 31 01 22.26 BOS 2019 05 31 02 23.80 BOS 2019 05 31 03 31.91 BOS 2019 05 31 04 27.93 BOS 2019 05 31 05 17.66 BOS 2019 05 31 06 13.77 BOS 2019 05 31 07 12.40 BOS 2019 05 31 08 8.87 BOS 2019 05 31 09 8.47 BOS 2019 05 31 10 8.85 BOS 2019 05 31 11 8.76 BOS 2019 05 31 12 7.76 BOS 2019 05 31 13 10.22 BOS 2019 05 31 14 16.07 BOS 2019 05 31 15 19.45 BOS 2019 05 31 16 25.34 BOS 2019 05 31 17 27.78 BOS 2019 05 31 18 28.63 BOS 2019 05 31 19 28.43 BOS 2019 05 31 20 30.76 BOS 2019 05 31 21 31.39 BOS 2019 05 31 22 27.26 BOS 2019 05 31 23 27.10