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 01 01 00 28.75 BOS 2019 01 01 01 27.93 BOS 2019 01 01 02 29.50 BOS 2019 01 01 03 28.71 BOS 2019 01 01 04 29.53 BOS 2019 01 01 05 29.43 BOS 2019 01 01 06 29.45 BOS 2019 01 01 07 28.21 BOS 2019 01 01 08 25.70 BOS 2019 01 01 09 23.28 BOS 2019 01 01 10 21.18 BOS 2019 01 01 11 20.09 BOS 2019 01 01 12 22.56 BOS 2019 01 01 13 27.83 BOS 2019 01 01 14 33.89 BOS 2019 01 01 15 37.34 BOS 2019 01 01 16 35.71 BOS 2019 01 01 17 39.04 BOS 2019 01 01 18 34.99 BOS 2019 01 01 19 33.13 BOS 2019 01 01 20 33.48 BOS 2019 01 01 21 32.60 BOS 2019 01 01 22 30.67 BOS 2019 01 01 23 26.61 BOS 2019 01 02 00 23.22 BOS 2019 01 02 01 22.64 BOS 2019 01 02 02 21.20 BOS 2019 01 02 03 16.08 BOS 2019 01 02 04 17.67 BOS 2019 01 02 05 26.91 BOS 2019 01 02 06 27.82 BOS 2019 01 02 07 27.74 BOS 2019 01 02 08 32.47 BOS 2019 01 02 09 35.11 BOS 2019 01 02 10 38.59 BOS 2019 01 02 11 49.34 BOS 2019 01 02 12 49.39 BOS 2019 01 02 13 47.67 BOS 2019 01 02 14 48.22 BOS 2019 01 02 15 47.51 BOS 2019 01 02 16 46.59 BOS 2019 01 02 17 46.44 BOS 2019 01 02 18 47.08 BOS 2019 01 02 19 42.62 BOS 2019 01 02 20 41.71 BOS 2019 01 02 21 38.92 BOS 2019 01 02 22 37.41 BOS 2019 01 02 23 33.67 BOS 2019 01 03 00 38.28 BOS 2019 01 03 01 42.99 BOS 2019 01 03 02 44.14 BOS 2019 01 03 03 43.82 BOS 2019 01 03 04 43.09 BOS 2019 01 03 05 43.70 BOS 2019 01 03 06 44.78 BOS 2019 01 03 07 44.20 BOS 2019 01 03 08 40.94 BOS 2019 01 03 09 40.53 BOS 2019 01 03 10 39.74 BOS 2019 01 03 11 42.02 BOS 2019 01 03 12 42.96 BOS 2019 01 03 13 42.33 BOS 2019 01 03 14 44.63 BOS 2019 01 03 15 41.21 BOS 2019 01 03 16 42.76 BOS 2019 01 03 17 41.64 BOS 2019 01 03 18 41.54 BOS 2019 01 03 19 42.80 BOS 2019 01 03 20 42.88 BOS 2019 01 03 21 36.42 BOS 2019 01 03 22 33.44 BOS 2019 01 03 23 30.12 BOS 2019 01 04 00 32.01 BOS 2019 01 04 01 36.25 BOS 2019 01 04 02 9999.99 BOS 2019 01 04 03 39.94 BOS 2019 01 04 04 45.00 BOS 2019 01 04 05 47.13 BOS 2019 01 04 06 48.70 BOS 2019 01 04 07 49.77 BOS 2019 01 04 08 44.72 BOS 2019 01 04 09 45.22 BOS 2019 01 04 10 44.28 BOS 2019 01 04 11 40.19 BOS 2019 01 04 12 37.60 BOS 2019 01 04 13 42.24 BOS 2019 01 04 14 43.55 BOS 2019 01 04 15 41.41 BOS 2019 01 04 16 44.33 BOS 2019 01 04 17 42.98 BOS 2019 01 04 18 47.07 BOS 2019 01 04 19 44.78 BOS 2019 01 04 20 39.17 BOS 2019 01 04 21 39.44 BOS 2019 01 04 22 36.49 BOS 2019 01 04 23 35.77 BOS 2019 01 05 00 33.73 BOS 2019 01 05 01 34.40 BOS 2019 01 05 02 33.23 BOS 2019 01 05 03 36.69 BOS 2019 01 05 04 36.94 BOS 2019 01 05 05 40.05 BOS 2019 01 05 06 42.26 BOS 2019 01 05 07 35.48 BOS 2019 01 05 08 39.43 BOS 2019 01 05 09 36.85 BOS 2019 01 05 10 38.68 BOS 2019 01 05 11 34.06 BOS 2019 01 05 12 31.16 BOS 2019 01 05 13 35.34 BOS 2019 01 05 14 38.76 BOS 2019 01 05 15 36.57 BOS 2019 01 05 16 37.71 BOS 2019 01 05 17 39.40 BOS 2019 01 05 18 41.18 BOS 2019 01 05 19 43.89 BOS 2019 01 05 20 44.40 BOS 2019 01 05 21 41.79 BOS 2019 01 05 22 37.79 BOS 2019 01 05 23 34.78 BOS 2019 01 06 00 32.69 BOS 2019 01 06 01 32.59 BOS 2019 01 06 02 32.07 BOS 2019 01 06 03 31.83 BOS 2019 01 06 04 31.03 BOS 2019 01 06 05 30.82 BOS 2019 01 06 06 29.93 BOS 2019 01 06 07 29.92 BOS 2019 01 06 08 28.58 BOS 2019 01 06 09 28.66 BOS 2019 01 06 10 27.71 BOS 2019 01 06 11 27.83 BOS 2019 01 06 12 28.15 BOS 2019 01 06 13 28.86 BOS 2019 01 06 14 28.74 BOS 2019 01 06 15 39.04 BOS 2019 01 06 16 46.39 BOS 2019 01 06 17 46.65 BOS 2019 01 06 18 48.00 BOS 2019 01 06 19 48.81 BOS 2019 01 06 20 48.56 BOS 2019 01 06 21 48.28 BOS 2019 01 06 22 47.97 BOS 2019 01 06 23 47.60 BOS 2019 01 07 00 45.76 BOS 2019 01 07 01 46.77 BOS 2019 01 07 02 47.50 BOS 2019 01 07 03 48.54 BOS 2019 01 07 04 45.98 BOS 2019 01 07 05 44.94 BOS 2019 01 07 06 46.66 BOS 2019 01 07 07 48.06 BOS 2019 01 07 08 49.02 BOS 2019 01 07 09 49.28 BOS 2019 01 07 10 50.30 BOS 2019 01 07 11 50.79 BOS 2019 01 07 12 50.93 BOS 2019 01 07 13 50.01 BOS 2019 01 07 14 50.52 BOS 2019 01 07 15 50.78 BOS 2019 01 07 16 48.94 BOS 2019 01 07 17 47.69 BOS 2019 01 07 18 46.92 BOS 2019 01 07 19 47.40 BOS 2019 01 07 20 47.30 BOS 2019 01 07 21 47.06 BOS 2019 01 07 22 47.11 BOS 2019 01 07 23 47.12 BOS 2019 01 08 00 47.40 BOS 2019 01 08 01 47.58 BOS 2019 01 08 02 47.56 BOS 2019 01 08 03 47.35 BOS 2019 01 08 04 47.35 BOS 2019 01 08 05 9999.99 BOS 2019 01 22 22 41.70 BOS 2019 01 22 23 41.25 BOS 2019 01 23 00 38.88 BOS 2019 01 23 01 34.74 BOS 2019 01 23 02 37.71 BOS 2019 01 23 03 34.64 BOS 2019 01 23 04 33.85 BOS 2019 01 23 05 32.56 BOS 2019 01 23 06 39.82 BOS 2019 01 23 07 43.75 BOS 2019 01 23 08 41.55 BOS 2019 01 23 09 35.39 BOS 2019 01 23 10 37.73 BOS 2019 01 23 11 40.22 BOS 2019 01 23 12 44.82 BOS 2019 01 23 13 44.89 BOS 2019 01 23 14 45.55 BOS 2019 01 23 15 45.45 BOS 2019 01 23 16 29.46 BOS 2019 01 23 17 32.36 BOS 2019 01 23 18 32.39 BOS 2019 01 23 19 25.95 BOS 2019 01 23 20 33.82 BOS 2019 01 23 21 45.06 BOS 2019 01 23 22 45.26 BOS 2019 01 23 23 45.42 BOS 2019 01 24 00 32.86 BOS 2019 01 24 01 30.34 BOS 2019 01 24 02 32.71 BOS 2019 01 24 03 33.98 BOS 2019 01 24 04 35.21 BOS 2019 01 24 05 34.36 BOS 2019 01 24 06 32.55 BOS 2019 01 24 07 32.54 BOS 2019 01 24 08 31.71 BOS 2019 01 24 09 29.97 BOS 2019 01 24 10 27.58 BOS 2019 01 24 11 29.22 BOS 2019 01 24 12 21.91 BOS 2019 01 24 13 20.90 BOS 2019 01 24 14 36.26 BOS 2019 01 24 15 36.59 BOS 2019 01 24 16 36.40 BOS 2019 01 24 17 35.94 BOS 2019 01 24 18 36.06 BOS 2019 01 24 19 36.83 BOS 2019 01 24 20 36.09 BOS 2019 01 24 21 36.03 BOS 2019 01 24 22 9999.99 BOS 2019 01 24 23 28.44 BOS 2019 01 25 00 23.77 BOS 2019 01 25 01 24.92 BOS 2019 01 25 02 25.70 BOS 2019 01 25 03 26.64 BOS 2019 01 25 04 31.48 BOS 2019 01 25 05 27.73 BOS 2019 01 25 06 25.17 BOS 2019 01 25 07 36.92 BOS 2019 01 25 08 32.87 BOS 2019 01 25 09 35.25 BOS 2019 01 25 10 36.32 BOS 2019 01 25 11 37.50 BOS 2019 01 25 12 40.03 BOS 2019 01 25 13 40.31 BOS 2019 01 25 14 38.26 BOS 2019 01 25 15 37.28 BOS 2019 01 25 16 38.10 BOS 2019 01 25 17 39.37 BOS 2019 01 25 18 37.47 BOS 2019 01 25 19 33.65 BOS 2019 01 25 20 35.58 BOS 2019 01 25 21 44.56 BOS 2019 01 25 22 46.16 BOS 2019 01 25 23 44.31 BOS 2019 01 26 00 39.00 BOS 2019 01 26 01 39.59 BOS 2019 01 26 02 37.38 BOS 2019 01 26 03 38.71 BOS 2019 01 26 04 40.82 BOS 2019 01 26 05 43.37 BOS 2019 01 26 06 46.87 BOS 2019 01 26 07 43.95 BOS 2019 01 26 08 46.60 BOS 2019 01 26 09 47.66 BOS 2019 01 26 10 47.95 BOS 2019 01 26 11 48.09 BOS 2019 01 26 12 43.46 BOS 2019 01 26 13 43.54 BOS 2019 01 26 14 41.49 BOS 2019 01 26 15 42.93 BOS 2019 01 26 16 35.94 BOS 2019 01 26 17 36.65 BOS 2019 01 26 18 38.71 BOS 2019 01 26 19 43.35 BOS 2019 01 26 20 42.82 BOS 2019 01 26 21 46.07 BOS 2019 01 26 22 46.82 BOS 2019 01 26 23 48.25 BOS 2019 01 27 00 48.24 BOS 2019 01 27 01 48.07 BOS 2019 01 27 02 48.20 BOS 2019 01 27 03 48.29 BOS 2019 01 27 04 47.94 BOS 2019 01 27 05 48.41 BOS 2019 01 27 06 47.64 BOS 2019 01 27 07 47.23 BOS 2019 01 27 08 46.56 BOS 2019 01 27 09 46.43 BOS 2019 01 27 10 41.83 BOS 2019 01 27 11 40.22 BOS 2019 01 27 12 43.30 BOS 2019 01 27 13 43.52 BOS 2019 01 27 14 42.74 BOS 2019 01 27 15 43.16 BOS 2019 01 27 16 43.18 BOS 2019 01 27 17 42.93 BOS 2019 01 27 18 43.22 BOS 2019 01 27 19 43.30 BOS 2019 01 27 20 43.50 BOS 2019 01 27 21 43.54 BOS 2019 01 27 22 43.30 BOS 2019 01 27 23 42.65 BOS 2019 01 28 00 42.57 BOS 2019 01 28 01 42.70 BOS 2019 01 28 02 43.08 BOS 2019 01 28 03 43.84 BOS 2019 01 28 04 44.40 BOS 2019 01 28 05 44.76 BOS 2019 01 28 06 42.25 BOS 2019 01 28 07 34.98 BOS 2019 01 28 08 32.80 BOS 2019 01 28 09 32.67 BOS 2019 01 28 10 32.91 BOS 2019 01 28 11 31.99 BOS 2019 01 28 12 29.69 BOS 2019 01 28 13 31.28 BOS 2019 01 28 14 33.60 BOS 2019 01 28 15 36.93 BOS 2019 01 28 16 38.61 BOS 2019 01 28 17 39.30 BOS 2019 01 28 18 39.84 BOS 2019 01 28 19 40.43 BOS 2019 01 28 20 40.59 BOS 2019 01 28 21 41.39 BOS 2019 01 28 22 40.00 BOS 2019 01 28 23 36.75 BOS 2019 01 29 00 34.57 BOS 2019 01 29 01 33.50 BOS 2019 01 29 02 36.56 BOS 2019 01 29 03 38.81 BOS 2019 01 29 04 38.92 BOS 2019 01 29 05 36.09 BOS 2019 01 29 06 35.00 BOS 2019 01 29 07 39.38 BOS 2019 01 29 08 37.98 BOS 2019 01 29 09 32.14 BOS 2019 01 29 10 18.36 BOS 2019 01 29 11 19.31 BOS 2019 01 29 12 25.37 BOS 2019 01 29 13 19.14 BOS 2019 01 29 14 21.67 BOS 2019 01 29 15 24.44 BOS 2019 01 29 16 28.00 BOS 2019 01 29 17 29.00 BOS 2019 01 29 18 30.72 BOS 2019 01 29 19 40.91 BOS 2019 01 29 20 43.09 BOS 2019 01 29 21 43.42 BOS 2019 01 29 22 41.10 BOS 2019 01 29 23 33.44 BOS 2019 01 30 00 33.26 BOS 2019 01 30 01 33.16 BOS 2019 01 30 02 29.27 BOS 2019 01 30 03 23.04 BOS 2019 01 30 04 30.22 BOS 2019 01 30 05 36.50 BOS 2019 01 30 06 33.95 BOS 2019 01 30 07 24.00 BOS 2019 01 30 08 20.56 BOS 2019 01 30 09 17.92 BOS 2019 01 30 10 19.26 BOS 2019 01 30 11 22.14 BOS 2019 01 30 12 22.09 BOS 2019 01 30 13 24.60 BOS 2019 01 30 14 27.39 BOS 2019 01 30 15 35.75 BOS 2019 01 30 16 30.87 BOS 2019 01 30 17 25.05 BOS 2019 01 30 18 25.53 BOS 2019 01 30 19 28.16 BOS 2019 01 30 20 28.70 BOS 2019 01 30 21 24.07 BOS 2019 01 30 22 22.26 BOS 2019 01 30 23 18.93 BOS 2019 01 31 00 44.00 BOS 2019 01 31 01 51.10 BOS 2019 01 31 02 51.28 BOS 2019 01 31 03 50.66 BOS 2019 01 31 04 50.51 BOS 2019 01 31 05 51.93 BOS 2019 01 31 06 53.11 BOS 2019 01 31 07 53.18 BOS 2019 01 31 08 23.51 BOS 2019 01 31 09 24.22 BOS 2019 01 31 10 34.25 BOS 2019 01 31 11 24.77 BOS 2019 01 31 12 33.03 BOS 2019 01 31 13 31.56 BOS 2019 01 31 14 31.76 BOS 2019 01 31 15 33.21 BOS 2019 01 31 16 34.77 BOS 2019 01 31 17 35.10 BOS 2019 01 31 18 30.35 BOS 2019 01 31 19 32.50 BOS 2019 01 31 20 29.26 BOS 2019 01 31 21 29.37 BOS 2019 01 31 22 36.01 BOS 2019 01 31 23 38.39