Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses

Monitoring provides data and information necessary for water quality assessment, but often it is prohibitive, especially when frequent sampling is required. In this study, we explored feasible sampling intervals for improved efficiency of nonpoint source (NPS) pollution assessment. We compared NPS p...

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Autores principales:	Hyunkyu Park, Jina Beom, Minhyuk Jeung, Woojung Choi, Younggu Her, Adel Shirmohammadi, Kwangsik Yoon
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	load estimation nonpoint source pollution sampling frequency sampling interval storm event water quality monitoring Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/9da3f389dc7b472ab9887c3f39fce166
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spelling	oai:doaj.org-article:9da3f389dc7b472ab9887c3f39fce1662021-11-06T07:09:39ZIdentifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses1606-97491607-079810.2166/ws.2020.296https://doaj.org/article/9da3f389dc7b472ab9887c3f39fce1662021-03-01T00:00:00Zhttp://ws.iwaponline.com/content/21/2/780https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Monitoring provides data and information necessary for water quality assessment, but often it is prohibitive, especially when frequent sampling is required. In this study, we explored feasible sampling intervals for improved efficiency of nonpoint source (NPS) pollution assessment. We compared NPS pollutant loads calculated with concentration samples collected at 1, 2, 3, 4, and 6-hour intervals for the first 24 hours of 13 storm events and investigated the effect of different sampling intervals on load estimation for three watersheds that have different land uses. When compared to load estimates made from concentrations sampled at the reference (1-hour) interval, differences in load estimates were less than 10% in the cases of the 2-hour and 3-hour intervals in the urbanized and agricultural watersheds, respectively, except in the case of suspended solids (SS). When it comes to the total load estimation, up to 3-hour interval sampling provided load estimates with acceptable accuracy, except for SS. Thus, the 3-hour sampling interval was considered feasible for long-term pollutant load assessment, while the 2-hour sampling interval was suggested for SS. Such findings are expected to facilitate NPS pollution assessment by providing information required to improve monitoring efficiency. HIGHLIGHTS The efficiency and accuracy of different water sampling intervals were assessed for improved feasibility of nonpoint source pollutant monitoring.; The sampling intervals of equal to or less than 3 hours could provide accurate and efficient pollutant load estimates in agricultural areas.; Urbanized areas required relatively frequent water sampling to satisfy the required accuracy.;Hyunkyu ParkJina BeomMinhyuk JeungWoojung ChoiYounggu HerAdel ShirmohammadiKwangsik YoonIWA Publishingarticleload estimationnonpoint source pollutionsampling frequencysampling intervalstorm eventwater quality monitoringWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 2, Pp 780-790 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	load estimation nonpoint source pollution sampling frequency sampling interval storm event water quality monitoring Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	load estimation nonpoint source pollution sampling frequency sampling interval storm event water quality monitoring Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Hyunkyu Park Jina Beom Minhyuk Jeung Woojung Choi Younggu Her Adel Shirmohammadi Kwangsik Yoon Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
description	Monitoring provides data and information necessary for water quality assessment, but often it is prohibitive, especially when frequent sampling is required. In this study, we explored feasible sampling intervals for improved efficiency of nonpoint source (NPS) pollution assessment. We compared NPS pollutant loads calculated with concentration samples collected at 1, 2, 3, 4, and 6-hour intervals for the first 24 hours of 13 storm events and investigated the effect of different sampling intervals on load estimation for three watersheds that have different land uses. When compared to load estimates made from concentrations sampled at the reference (1-hour) interval, differences in load estimates were less than 10% in the cases of the 2-hour and 3-hour intervals in the urbanized and agricultural watersheds, respectively, except in the case of suspended solids (SS). When it comes to the total load estimation, up to 3-hour interval sampling provided load estimates with acceptable accuracy, except for SS. Thus, the 3-hour sampling interval was considered feasible for long-term pollutant load assessment, while the 2-hour sampling interval was suggested for SS. Such findings are expected to facilitate NPS pollution assessment by providing information required to improve monitoring efficiency. HIGHLIGHTS The efficiency and accuracy of different water sampling intervals were assessed for improved feasibility of nonpoint source pollutant monitoring.; The sampling intervals of equal to or less than 3 hours could provide accurate and efficient pollutant load estimates in agricultural areas.; Urbanized areas required relatively frequent water sampling to satisfy the required accuracy.;
format	article
author	Hyunkyu Park Jina Beom Minhyuk Jeung Woojung Choi Younggu Her Adel Shirmohammadi Kwangsik Yoon
author_facet	Hyunkyu Park Jina Beom Minhyuk Jeung Woojung Choi Younggu Her Adel Shirmohammadi Kwangsik Yoon
author_sort	Hyunkyu Park
title	Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
title_short	Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
title_full	Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
title_fullStr	Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
title_full_unstemmed	Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
title_sort	identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/9da3f389dc7b472ab9887c3f39fce166
work_keys_str_mv	AT hyunkyupark identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT jinabeom identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT minhyukjeung identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT woojungchoi identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT youngguher identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT adelshirmohammadi identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses AT kwangsikyoon identifyingfeasiblenonpointsourcepollutantsamplingintervalsforwatershedswithpaddyfieldandurbanlanduses
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Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses

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