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2012•Journal of Environmental EngineeringRequires access

Using Turbidity to Determine Total Suspended Solids in Storm-Water Runoff from Green Roofs

Isam Alyaseri, Susan Morgan, William A. Retzlaff

Open publisher page 19 citations

Abstract

Green roofs are a technology used to control the quantity of the storm-water runoff and reduce energy consumption. Questions remain about their effect on water quality. Total suspended solids and turbidity are of the main parameters for water quality. This study investigated whether turbidity could produce a satisfactory estimation for total suspended solids (TSS) in the storm-water runoff from green roofs. Measuring turbidity is much faster than measuring TSS; a log-linear model showed strong positive correlation between TSS and turbidity (R2=0.9374) with a regression equation of [ln (TSS)=0.979 ln (Turb.)+0.574]. This equation shows that turbidity is a suitable monitoring parameter for TSS when TSS sampling and testing are impractical or not feasible.

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What this paper is about

Green roofs are a technology used to control the quantity of the storm-water runoff and reduce energy consumption. Questions remain about their effect on water quality. Total suspended solids and turbidity are of the main parameters for water quality. This study investigated whether turbidity could produce a satisfactory estimation for total suspended solids (TSS) in the storm-water runoff from green roofs. Measuring turbidity is much faster than measuring TSS; a log-linear model showed strong positive correlation between TSS and turbidity (R2=0.9374) with a regression equation of [ln (TSS)=0.979 ln (Turb.)+0.574]. This equation shows that turbidity is a suitable monitoring parameter for TSS when TSS sampling and testing are impractical or not feasible.

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Available abstract

Green roofs are a technology used to control the quantity of the storm-water runoff and reduce energy consumption. Questions remain about their effect on water quality. Total suspended solids and turbidity are of the main parameters for water quality. This study investigated whether turbidity could produce a satisfactory estimation for total suspended solids (TSS) in the storm-water runoff from green roofs. Measuring turbidity is much faster than measuring TSS; a log-linear model showed strong positive correlation between TSS and turbidity (R2=0.9374) with a regression equation of [ln (TSS)=0.979 ln (Turb.)+0.574]. This equation shows that turbidity is a suitable monitoring parameter for TSS when TSS sampling and testing are impractical or not feasible.

Key concepts: Turbidity, Total suspended solids, Surface runoff, Suspended solids, Environmental science, Water quality, Hydrology (agriculture), Total dissolved solids

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