A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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 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.;
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 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.;
Identifying feasible nonpoint source pollutant sampling intervals for watersheds with paddy field and urban land uses
Hyunkyu Park (author) / Jina Beom (author) / Minhyuk Jeung (author) / Woojung Choi (author) / Younggu Her (author) / Adel Shirmohammadi (author) / Kwangsik Yoon (author)
2021
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Nonpoint source pollutant management in an urban environment
| British Library Conference Proceedings | 1995
ESTIMATING ANNUAL URBAN NONPOINT POLLUTANT LOADS
| Online Contents | 1994
Nonpoint Source Pollution Model for Agricultural and Rural Watersheds
| British Library Conference Proceedings | 1993
Point-Nonpoint Pollutant Trading Study
| British Library Conference Proceedings | 1996
The Economic and Environmental Significance of Nonpoint Source Abatement in Large Watersheds
| British Library Conference Proceedings | 2009