Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature

In this study, we review federal datasets to assess the impacts of once-through power plant cooling systems on summer freshwater temperatures in the United States from 1996 to 2005. We find that maximum reported temperature discharges averaged 37 ° C (1996–2005) and were 9.5 ° C (1996–2000) to 10 °...

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Main Authors: N Madden, A Lewis, M Davis
Format: Article
Language:English
Published: IOP Publishing 2013-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/8/3/035006
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author N Madden
A Lewis
M Davis
author_facet N Madden
A Lewis
M Davis
author_sort N Madden
collection DOAJ
description In this study, we review federal datasets to assess the impacts of once-through power plant cooling systems on summer freshwater temperatures in the United States from 1996 to 2005. We find that maximum reported temperature discharges averaged 37 ° C (1996–2005) and were 9.5 ° C (1996–2000) to 10 ° C (2001–2005) higher than maximum reported intake temperatures during the summer. More than half of all power plant cooling systems report maximum temperature discharges that exceed 32 ° C and increase water temperatures enough to potentially impact aquatic life. However, current federal data on thermal discharges from power plants are insufficient to adequately assess their impact on in stream temperatures, or their subsequent effects on aquatic ecosystems and biodiversity. A preliminary analysis indicates that certain watersheds, primarily in the Southeastern and Midwestern United States, are good candidates for more focused study of power plant temperature impacts.
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spelling doaj.art-0ed02b54a7c2445597f992ca67b41acc2023-08-09T14:39:17ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018303500610.1088/1748-9326/8/3/035006Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperatureN Madden0A Lewis1M Davis2Union of Concerned Scientists , Cambridge, MA 02238-3780, USADuke University , 2138 Campus Drive, Durham, NC 27705, USAUnion of Concerned Scientists , Cambridge, MA 02238-3780, USAIn this study, we review federal datasets to assess the impacts of once-through power plant cooling systems on summer freshwater temperatures in the United States from 1996 to 2005. We find that maximum reported temperature discharges averaged 37 ° C (1996–2005) and were 9.5 ° C (1996–2000) to 10 ° C (2001–2005) higher than maximum reported intake temperatures during the summer. More than half of all power plant cooling systems report maximum temperature discharges that exceed 32 ° C and increase water temperatures enough to potentially impact aquatic life. However, current federal data on thermal discharges from power plants are insufficient to adequately assess their impact on in stream temperatures, or their subsequent effects on aquatic ecosystems and biodiversity. A preliminary analysis indicates that certain watersheds, primarily in the Southeastern and Midwestern United States, are good candidates for more focused study of power plant temperature impacts.https://doi.org/10.1088/1748-9326/8/3/035006thermoelectricitythermal pollutionwater temperatureClean Water Act
spellingShingle N Madden
A Lewis
M Davis
Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
Environmental Research Letters
thermoelectricity
thermal pollution
water temperature
Clean Water Act
title Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
title_full Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
title_fullStr Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
title_full_unstemmed Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
title_short Thermal effluent from the power sector: an analysis of once-through cooling system impacts on surface water temperature
title_sort thermal effluent from the power sector an analysis of once through cooling system impacts on surface water temperature
topic thermoelectricity
thermal pollution
water temperature
Clean Water Act
url https://doi.org/10.1088/1748-9326/8/3/035006
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