Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds

Abstract Increased stormwater runoff in urban watersheds is a leading cause of nonpoint phosphorus (P) pollution. We investigated the concentrations, forms, and temporal trends of P in stormwater runoff from a residential catchment (31 low-density residential homes; 0.11 km2 drainage area) in Florid...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yun-Ya Yang, Gurpal S. Toor
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/807129479323454ba1d950239fe51b19
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:807129479323454ba1d950239fe51b19
record_format	dspace
spelling	oai:doaj.org-article:807129479323454ba1d950239fe51b192021-12-02T11:40:16ZStormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds10.1038/s41598-018-29857-x2045-2322https://doaj.org/article/807129479323454ba1d950239fe51b192018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-29857-xhttps://doaj.org/toc/2045-2322Abstract Increased stormwater runoff in urban watersheds is a leading cause of nonpoint phosphorus (P) pollution. We investigated the concentrations, forms, and temporal trends of P in stormwater runoff from a residential catchment (31 low-density residential homes; 0.11 km2 drainage area) in Florida. Unfiltered runoff samples were collected at 5 min intervals over 29 storm events with an autosampler installed at the stormwater outflow pipe. Mean concentrations of orthophosphate (PO4–P) were 0.18 ± 0.065 mg/L and total P (TP) were 0.28 ± 0.062 mg/L in all runoff samples. The PO4–P was the dominant form in >90% of storm events and other–P (combination of organic P and particulate P) was dominant after a longer antecedent dry period. We hypothesize that in the stormwater runoff, PO4–P likely originated from soluble and desorbed pool of eroded soil and other–P likely originated from decomposing plant materials i.e. leaves and grass clippings and eroded soil. We found that the runoff was co-limited with nitrogen (N) and P in 34% of storm events and only N limited in 66% of storm events, implicating that management strategies focusing on curtailing both P and N transport would be more effective than focussing on only N or P in protecting water quality in residential catchments.Yun-Ya YangGurpal S. ToorNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yun-Ya Yang Gurpal S. Toor Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
description	Abstract Increased stormwater runoff in urban watersheds is a leading cause of nonpoint phosphorus (P) pollution. We investigated the concentrations, forms, and temporal trends of P in stormwater runoff from a residential catchment (31 low-density residential homes; 0.11 km2 drainage area) in Florida. Unfiltered runoff samples were collected at 5 min intervals over 29 storm events with an autosampler installed at the stormwater outflow pipe. Mean concentrations of orthophosphate (PO4–P) were 0.18 ± 0.065 mg/L and total P (TP) were 0.28 ± 0.062 mg/L in all runoff samples. The PO4–P was the dominant form in >90% of storm events and other–P (combination of organic P and particulate P) was dominant after a longer antecedent dry period. We hypothesize that in the stormwater runoff, PO4–P likely originated from soluble and desorbed pool of eroded soil and other–P likely originated from decomposing plant materials i.e. leaves and grass clippings and eroded soil. We found that the runoff was co-limited with nitrogen (N) and P in 34% of storm events and only N limited in 66% of storm events, implicating that management strategies focusing on curtailing both P and N transport would be more effective than focussing on only N or P in protecting water quality in residential catchments.
format	article
author	Yun-Ya Yang Gurpal S. Toor
author_facet	Yun-Ya Yang Gurpal S. Toor
author_sort	Yun-Ya Yang
title	Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
title_short	Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
title_full	Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
title_fullStr	Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
title_full_unstemmed	Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds
title_sort	stormwater runoff driven phosphorus transport in an urban residential catchment: implications for protecting water quality in urban watersheds
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/807129479323454ba1d950239fe51b19
work_keys_str_mv	AT yunyayang stormwaterrunoffdrivenphosphorustransportinanurbanresidentialcatchmentimplicationsforprotectingwaterqualityinurbanwatersheds AT gurpalstoor stormwaterrunoffdrivenphosphorustransportinanurbanresidentialcatchmentimplicationsforprotectingwaterqualityinurbanwatersheds
_version_	1718395655159808000

Stormwater runoff driven phosphorus transport in an urban residential catchment: Implications for protecting water quality in urban watersheds

Ejemplares similares