Brisbane is situated in a natural basin which is created by surrounding mountains and islands. This acts to contain and recirculate air pollutants, which prevents dispersion and can lead to elevated pollution levels until stronger winds clear the air.
While most of Brisbane generally has good air quality, locations close to busy roads and some industries don't always meet air quality standards. Any burning has a large effect on air quality and, in the case of bushfires or dust storms, can affect the whole city, even if it originates outside our local government area. High pollution days may affect environmental amenity, with hazy skies and reduced visibility.
Our subtropical climate means that hot sunny days create the perfect conditions for the formation of ozone, which is a major air pollutant. Even though Brisbane’s ozone levels are not typically high, we need to stay vigilant.