Sewage-effluent phosphorus: A greater risk to river eutrophication than agricultural phosphorus?

Jarvie, Helen P.; Neal, Colin; Withers, P. J. A.

doi:10.1016/j.scitotenv.2005.08.038

Cited by 428 publications

(306 citation statements)

References 33 publications

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“…Total P concentration-flow relationships are often used as a simple water-quality screening tool to assess the influence of point and non-point source influences in rivers 13,47,58 . However, the results from the Illinois River clearly demonstrate how these TP-flow relationships can underestimate the true influence of point sources, owing to the retention and removal of TP from the water column under low flows.…”

Section: Impacts Of Within-river Effluent Tp Retention and Remobilizamentioning

confidence: 99%

“…Based on a wealth of evidence demonstrating the hydrologic controls on P transport and delivery [7][8][9] , the widespread assumption is that P loads mobilized during storm events equate to non-point sources delivered via run-off and erosion from the land surface 10,11 . Loads measured under low flows are assumed to equate to the contributions from point-source effluent discharges, together with any 'background' baseflow groundwater contributions 12,13 .…”

Section: Introductionmentioning

confidence: 99%

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Within-River Phosphorus Retention: Accounting for a Missing Piece in the Watershed Phosphorus Puzzle

Jarvie

Sharpley

Scott

et al. 2012

Environ. Sci. Technol.

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100

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The NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. ABSTRACTThe prevailing 'puzzle' in watershed phosphorus (P) management is how to account for the nonconservative behavior (retention and remobilization) of P along the land-freshwater continuum. This often hinders our attempts to directly link watershed P sources with their water quality impacts. Here, we examine aspects of within-river retention of wastewater effluent P and its remobilization under high flows. Most source apportionment methods attribute P loads mobilized under high flows (including retained and remobilized effluent P) as non-point agricultural sources. We present a new simple empirical method which uses chloride as a conservative tracer of wastewater effluent, to quantify within-river retention of effluent P, and its contribution to river P loads, when remobilized under high flows. We demonstrate that within-river P retention can effectively mask the presence of effluent P inputs in the water quality record. Moreover, we highlight that by not accounting for the contributions of retained and remobilized effluent P to river storm-flow P loads, existing source apportionment methods may significantly over-estimate the non-point agricultural sources and under-estimate wastewater sources in mixed land-use watersheds. This has important implications for developing 2 effective watershed remediation strategies, where remediation needs to be equitably and accurately apportioned among point and non-point P contributors.

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Section: Impacts Of Within-river Effluent Tp Retention and Remobilizamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Within-River Phosphorus Retention: Accounting for a Missing Piece in the Watershed Phosphorus Puzzle

Jarvie

Sharpley

Scott

et al. 2012

Environ. Sci. Technol.

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100

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“…A recent study of 54 UK lowland rivers has indicated that 286 point (sewage effluent) rather than diffuse (agricultural) are the most important sources of P 287 in terms of eutrophication risk (Jarvie et al, 2006). Whilst many of the larger sewage 288 treatment plants have a phosphorus stripping stage, this is not true of the more numerous 289 smaller trickling filter works, which are particularly relevant in rural areas.…”

mentioning

confidence: 99%

The British river of the future: How climate change and human activity might affect two contrasting river ecosystems in England

Johnson

Acreman

Dunbar

et al. 2009

Science of The Total Environment

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141

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“…Nos rios que drenam regiões agrícolas com baixa população urbana, as concentrações de fósforo aumentaram no período de alto fluxo, indicando a predominância de fontes difusas no controle das concentrações do fósforo na água (Jarvie et al, 2005 (Esteves, 1998). A presença de nitrato caracteriza uma poluição remota, em função de que o nitrogênio se encontra em seu último estádio de oxidação (Macêdo, 2003 A poluição por nitrogênio de origem agrícola é caracterizada por uma considerável variabilidade temporal e espacial, dependendo das práticas agrícolas adotadas na região e das variáveis ambientais, como clima, solo e topografia (Giupponi e Vladimirova, 2006).…”

Section: Temperatura E Oxigênio Dissolvidounclassified

“…A presença de nitrato caracteriza uma poluição remota, em função de que o nitrogênio se encontra em seu último estádio de oxidação (Macêdo, 2003 A poluição por nitrogênio de origem agrícola é caracterizada por uma considerável variabilidade temporal e espacial, dependendo das práticas agrícolas adotadas na região e das variáveis ambientais, como clima, solo e topografia (Giupponi e Vladimirova, 2006). A importância relativa das diversas fontes de nutriente tem, tradicionalmente, sido avaliada com base na variação do fluxo de água anual do rio (Jarvie et al, 2005).…”

Section: Temperatura E Oxigênio Dissolvidounclassified

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Ambi-Agua

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Research sites to study the influence of drainage on soil and water chemistry, litter decomposition and soil respiration in central Amazonia. ISSN = 1980ISSN = -993X -doi:10.4136/1980 ABSTRACTThe launching of this first issue of the sixth volume contains 12 inedited peer reviewed papers from 53 authors that originated from three continents, four different countries, 20 universities from which 16 are from several Brazilian federal universities, 3 from abroad, 1 Brazilian state and one municipal university. Other nine authors are from research institutions, among them three from abroad. We proudly state that this fifteenth edition has been published on time as it was the case of all previous issues. Most articles of this issue concentrate on environmental characterization of different ecosystems pollution control and mitigation. Two articles assessed the water quality of small river basins. Then there are two articles, one about fire occurrence and precipitation relationship and one about irrigation control to optimize water usage. This editorial points out new accomplishments and changes on publication policies.Keywords: Ambi-Agua; environment; water resources; publication. O periódico científico "Ambiente & Água" após cinco anos de história RESUMOO lançamento da primeira edição do sexto volume contém 12 artigos inéditos revisados por pares publicados por 53 autores de três continentes e quatro países diferentes, de 20 universidades das quais 16 são universidades federais brasileiras, três do exterior, uma estadual e outra municipal. Nove outros autores são de instituições de pesquisa, entre elas, três do exterior. Temos orgulho em afirmar que esta décima quinta edição foi publicada no dia previsto, sem atraso, como foi o caso de todas as edições anteriores. A maioria dos artigos desta edição se concentra na caracterização ambiental, controle e mitigação de poluição de diferentes ecossistemas. Dois artigos avaliaram a qualidade da água de pequenas bacias hidrográficas. Ainda há dois artigos, sendo um sobre ocorrência de incêndio relacionado com precipitação e outro apresenta equipamento para o controle de irrigação, visando otimizar o uso da água. Este editorial destaca realizações e mudanças nas políticas de publicação.Palavras-chave: Ambi-Agua; recursos hídricos; publicação.Revista científica "Ambiente e Água" después de cinco años de historia RESUMEN El lanzamiento de esta primera edición del sexto volumen contiene 12 artículos inéditos revisados por pares publicados por 53 autores que se originó a partir de tres continentes y cuatro países distintos, 20 universidades de las cuales 16 son de varias universidades federales de Brasil, 3 del extranjero, una estadual de Brasil y una universidad municipal. Otros nueve autores son de instituciones de investigación, entre ellos tres extranjeros. Estamos orgullosos de afirmar que esta decimoquinta edición ha sido publicada a tiempo, sin retraso como se pasó BATISTA, G. T. "Ambiente & Água" scientific journal after five years of history. Ambi-Agua, Taubaté, v. 6, n...

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Sewage-effluent phosphorus: A greater risk to river eutrophication than agricultural phosphorus?

Cited by 428 publications

References 33 publications

Within-River Phosphorus Retention: Accounting for a Missing Piece in the Watershed Phosphorus Puzzle

Within-River Phosphorus Retention: Accounting for a Missing Piece in the Watershed Phosphorus Puzzle

The British river of the future: How climate change and human activity might affect two contrasting river ecosystems in England

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