The volume and type of unhealthy bus shelter advertising around schools in Perth, Western Australia: Results from an explorative study.

Of the 293 advertisements recorded over the four audits, 31% featured unhealthy products, 3% moderate, and <1% healthy. Only two of the 293 advertisements were classified as being healthy. Seasonal variation in the volume of unhealthy advertisements was not identified. SO WHAT?: Western Australian school students are regularly exposed to unhealthy bus shelter advertisements. Stricter regulation of outdoor advertising is needed to ensure that young people are protected from the influence of unhealthy industries.