To date, nine bi-annual surveys have been completed using this method and this report includes the full results of the November 25 and May 26 surveys, as well as a preliminary overview of trends/patterns seen across the nine surveys completed to date.
For 2025/26, across 107,114 square metres surveyed, an average of 11,882 items of litter were counted, with a calculated volume of 829.95 litres.
Cigarette Butts and filters were again found to be the most common item by count, while Paper and Card food packaging was the highest item by volume. On a raw basis, findings were similar to the previous year with Main Roads sites containing the highest litter by count and Industrial with the highest litter by volume. Beaches again had the lowest litter levels by raw count and volume. Plastic represented the highest material found by count (57%) and volume (26%).
In this report litter data has been provided by site types and key categories to establish a basis for trend analysis under this newly
developed litter count method.
Australian Litter Measure
Research and analysis
Summary of the findings of the Australian Litter Measure litter surveys completed across the Perth Metropolitan Area through to June 2026.
First published: 1 May 2022
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