Gully pots as pollutant sinks and sources

Gully pots are a ubiquitous dual-function component of urban drainage infrastructure, moving surface runoff to below ground piped systems and preventing large debris entering and blocking pipes. However, the need to tackle diffuse urban pollution to achieve environmental objectives has increased interest in the potential role of gully pots in trapping urban sediments and associated pollutants as a stormwater mitigation component.

Within DRIZZLE, the efficacy of gully pots in terms of their role as pollutant sinks (i.e. trapping sediments), pollutant sources (the scouring of previously-deposited sediments) and the implications of both for their operation and management as part of stormwater management strategies is evaluated through a combination of field, laboratory and modelling studies.

Haoyu Wei, Lian Lundy, Maria Viklander och Tone Muthanna