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Effectiveness of rain gardens for re...

Wang, Zhengyi.

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Effectiveness of rain gardens for reducing nonpoint source pollution from urban stormwater runoff.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Effectiveness of rain gardens for reducing nonpoint source pollution from urban stormwater runoff./
作者:	Wang, Zhengyi.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2014,
面頁冊數:	167 p.
附註:	Source: Masters Abstracts International, Volume: 54-03.
Contained By:	Masters Abstracts International54-03(E).
標題:	Water resources management. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1526210
ISBN:	9781321566802

Effectiveness of rain gardens for reducing nonpoint source pollution from urban stormwater runoff.
Wang, Zhengyi.

Effectiveness of rain gardens for reducing nonpoint source pollution from urban stormwater runoff. - Ann Arbor : ProQuest Dissertations & Theses, 2014 - 167 p.

Source: Masters Abstracts International, Volume: 54-03.

Thesis (M.S.)--Stephen F. Austin State University, 2014.

Urban stormwater runoff water quality was monitored before and after runoff waters filtered through three rain gardens. Monitoring was conducted during the first 12-month period after rain garden construction (September 2012 - August 2013). Geographic Information Systems (GIS) was used to calculate the contributing area of stormwater runoff. The U.S. Department of Agriculture (USDA) curve number method was used to estimate quantity of stormwater runoff. Water quality parameters were compared with the U.S. Environmental Protection Agency (USEPA) and the Texas Commission on Environmental Quality (TCEQ) standards to verify compliance, and statistical analysis was conducted to compare water quality parameters for inflow and outflow of water, seasons, and other related factors.

ISBN: 9781321566802Subjects--Topical Terms:

794747
Water resources management.

Effectiveness of rain gardens for reducing nonpoint source pollution from urban stormwater runoff.
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520 $a Urban stormwater runoff water quality was monitored before and after runoff waters filtered through three rain gardens. Monitoring was conducted during the first 12-month period after rain garden construction (September 2012 - August 2013). Geographic Information Systems (GIS) was used to calculate the contributing area of stormwater runoff. The U.S. Department of Agriculture (USDA) curve number method was used to estimate quantity of stormwater runoff. Water quality parameters were compared with the U.S. Environmental Protection Agency (USEPA) and the Texas Commission on Environmental Quality (TCEQ) standards to verify compliance, and statistical analysis was conducted to compare water quality parameters for inflow and outflow of water, seasons, and other related factors.
520 $a Concentrations of most water quality parameters were significantly lower in outflow runoff than inflow with no parameters having mean concentrations exceeding levels that would violate water quality standards set by the EPA and TCEQ. This study indicated the efficacy of rain gardens in reducing urban nonpoint source pollution. Underlying geology, fill materials, and irrigation water quality may affect outflow concentrations of parameters like calcium, magnesium, sodium, and electrical conductivity. Annual geometric mean concentration for nitrate at the outflow of garden 2 was above the criteria for public drinking water standard of 10 mg L-1 established by TCEQ to prevent methemoglobinemia or blue-baby disease. This could be caused by the unintentional application of nitrogen fertilizer at garden 2.
520 $a Rain gardens can be an effective structural best management practice for managing urban stormwater and reducing nonpoint source pollution. Longer term monitoring is needed to determine if greater consistency in these parameters develops as fill materials stabilize and as the vegetation matures to fully occupy these rain gardens.
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