Asadian, Y., Weiler, M. 2009. A new approach in measuring rainfall interception by urban trees in coastal British Columbia. Water Quality Research Journal of Canada. Volume 44, Number 1. Pages 16-23 forest, urban, Stormwater, Green Infrastructure, Trees, Rainfall, Interception This study assessed the efficacy of two different tree species (Douglas-fir and western red cedar) at incercepting rainfall by collecting and analyzing throughfall.