SoE2020: Visibility-reducing particles

While the past 2 decades have seen a downward trend in the number of days with reduced visibility (defined as a visual distance less than 20km) throughout Queensland, there were more than 10 reduced visibility days in all Queensland regions in 2000, 2001 and 2009 due to dry conditions and widespread bushfires. In addition, due to localised bushfires, South East Queensland recorded more days with reduced visibility in 2004, 2012 and 2019 as well, while Gladstone recorded more days with reduced visibility in 2011, 2015 and 2017 to 2019.