Table 5 The 99th percentile 8-hour running average for ozone (8-hourly running average) measured at Club Station, Secunda
Pollutant | NAAQS limit | 2005 | 2006 | 2007 | 2008 | 2009 |
O3 | 61 ppb | 82 | 76 | 68 | 107 | 75 |
Pollutant | NAAQS limit | 2010 | 2011 | 2012 | 2013 | 2014 |
O3 | 61 ppb | 64 | 75 | 70 | 169 | 83 |
Pollutant | NAAQS limit | 2015 | 2016 | 2017 | 2018 | 2019 |
O3 | 61 ppb | 72 | 200 | 62 | – | 70 |