The Bureau of Meteorology is forecasting consistent northerly winds of up to 30km/hr this morning. These dry and consistent northerly winds are often associated with poor air quality in Brooklyn.
Periods of poor to very poor air quality are likely in Brooklyn today (Friday 9 May 2014), with the worst air quality expected to occur for the next few hours during the morning.
http://www.bom.gov.au/vic/forecasts/melbourne.shtml