Pollutant characteristics on roof surfaces for evaluation as a
stormwater harvesting catchment Miguntanna, Nadeeka Sajeewani,
Egodawatta, Prasanna, & Goonetilleke, Ashantha (2010) Pollutant
characteristics on roof surfaces for evaluation as a stormwater
harvesting catchment. Desalination and Water Treatment, 19, pp.
205-211. This paper presents the outcomes of a study which
focused on evaluating roof surfaces as stormwater harvesting
catchments. Build-up and wash-off samples were collected from
model roof surfaces. The collected build-up samples were
separated into five different particle size ranges prior to the
analysis of physico-chemical parameters. Study outcomes showed
that roof surfaces are efficient catchment surfaces for the
deposition of fine particles which travel over long distances.
Roof surfaces contribute relatively high pollutant loads to the
runoff and hence significantly influence the quality of the
harvested rainwater. Pollutants associated with solids build-up
on roof surfaces can vary wit