Evidence details

rebecca.killalea@canberra.edu.au on 02 Mar 2022

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Citation: Yufen, R., Xiaoke, W., Zhiyun, O., Hua, Z., Xiaonan, D., & Hong, M. (2008). Stormwater Runoff Quality from Different Surfaces in an Urban Catchment in Beijing, China. Water Environment Research.
Study description: This study examined the pollutants in stormwater runoff from a number of surfaces (roof, lawn, local/small road, and heavy traffic road).The concentrations of pollutants was assessed across a number of rain events and between the different surface types.

Cause term/trajectory: Hydrology - surface flow (other) (Increase)
Cause description: Duration of rain event
Effect term/trajectory: Water quality - nutrients (other) (Decrease)
Effect description: Concentrations of Total nitrogen (TN) and Total phosphorus (TP) were found to be high at the start of rain events in the study and decreased sharply with increased duration of rain event.
Response measure type: F statistic/ratio
Response measure description: Trend noted in paper reported. Unsure if significant.

Source data: Field
Study type: Observation
Study design: Control/reference vs. treatment/impact (no before)
Number of independent control or reference sampling units: 14
Number of indendent impact or treatment sampling units: Control: Rainwater collected in 3 polyethylene vessels (3 sites). Treatments: Roof runoff (3 sites), road runoff (4 sites), lawn runoff (1 site), heavy traffic road (3 sites)
Sample size used in analysis: Sample size varies across different surface types.
Design description: Sample size/ number of rain events sampled unclear.