A seasonal study of ecoroof runoff quality and quantity and the associated drivers on a commercial building in North Portland Oregon
Start Date
3-2-2020 3:20 PM
End Date
3-2-2020 3:30 PM
Abstract
Urban environments, with their vast swaths of impervious surfaces, increase the amount of nonpoint pollution that enter receiving freshwater bodies. This increase of pollution leads to concerning ecological management problems such as the urban stream syndrome. Green stormwater infrastructure (GSI), specifically ecoroofs, are increasingly being seen as a potential mitigator of these concerns in urban planning strategies. However, the literature suggests that ecoroofs might be sources of certain metals and nutrients, such as lead, copper, iron, total phosphorus and nitrogen. The goal of our in-progress study is to investigate and observe if these concerns hold true by the collection and analysis of metal and nutrient loading and dynamics of the run-off from an aged extensive ecoroof and the environmental variables that affect them. From August 2018 to present, the runoff events from the ecoroof and conventional roof have been collected with autosamplers and flow was measured with a flow meter. About 83 samples have been collected from the ecoroof and 127 samples have been collected from the conventional roof. Bulk deposition was collected every 2 weeks and environmental data was collected from a weather station located on the roof. With this information we hope to support the use of ecoroofs to reduce the urban footprint.
Subjects
Air quality, Hydrology, Land use planning, Land/watershed management, Sustainable development, Water quality
Persistent Identifier
https://archives.pdx.edu/ds/psu/33836
Rights
© Copyright the author(s)
IN COPYRIGHT:
http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
DISCLAIMER:
The purpose of this statement is to help the public understand how this Item may be used. When there is a (non-standard) License or contract that governs re-use of the associated Item, this statement only summarizes the effects of some of its terms. It is not a License, and should not be used to license your Work. To license your own Work, use a License offered at https://creativecommons.org/
A seasonal study of ecoroof runoff quality and quantity and the associated drivers on a commercial building in North Portland Oregon
Urban environments, with their vast swaths of impervious surfaces, increase the amount of nonpoint pollution that enter receiving freshwater bodies. This increase of pollution leads to concerning ecological management problems such as the urban stream syndrome. Green stormwater infrastructure (GSI), specifically ecoroofs, are increasingly being seen as a potential mitigator of these concerns in urban planning strategies. However, the literature suggests that ecoroofs might be sources of certain metals and nutrients, such as lead, copper, iron, total phosphorus and nitrogen. The goal of our in-progress study is to investigate and observe if these concerns hold true by the collection and analysis of metal and nutrient loading and dynamics of the run-off from an aged extensive ecoroof and the environmental variables that affect them. From August 2018 to present, the runoff events from the ecoroof and conventional roof have been collected with autosamplers and flow was measured with a flow meter. About 83 samples have been collected from the ecoroof and 127 samples have been collected from the conventional roof. Bulk deposition was collected every 2 weeks and environmental data was collected from a weather station located on the roof. With this information we hope to support the use of ecoroofs to reduce the urban footprint.