First flush phenomenon study of storm runoff from a maize cultivated area

Various studies conducted worldwide could not ascertain the existence of the first flush in every drainage outlet, during every storm event and for each pollutant. Hence there is a need to study the first flush phenomenon of runoff from an agricultural area. Rainfall in three seasons of maize cultiv...

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Main Authors: Mansur, Rusnam, Mohd Soom, Mohd Amin, Idris, Azni, Lee, Teang Shui
Format: Conference or Workshop Item
Language:English
Published: 2005
Online Access:http://psasir.upm.edu.my/id/eprint/39399/1/39399.pdf
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author Mansur, Rusnam
Mohd Soom, Mohd Amin
Idris, Azni
Lee, Teang Shui
author_facet Mansur, Rusnam
Mohd Soom, Mohd Amin
Idris, Azni
Lee, Teang Shui
author_sort Mansur, Rusnam
collection UPM
description Various studies conducted worldwide could not ascertain the existence of the first flush in every drainage outlet, during every storm event and for each pollutant. Hence there is a need to study the first flush phenomenon of runoff from an agricultural area. Rainfall in three seasons of maize cultivation was monitored. Twenty storm events of various intensities and durations were monitored in crop season I, nineteen in crop season II and eight in crop season III. Six parameters were monitored for the first flush study. First flush effect for most of the parameters was weak and closed to uniform for every storm event. Although it was minor, total suspended solids (TSS) exhibited first flush during all storm events. As such, first flush separation would not be an effective criterion for diffuse or nonpoint source pollution control in the study area. Based on the rainfall analysis it was recommended that to avoid the ambiguity pertaining to first flush phenomenon and to simplify the criterion for designing the nonpoint source pollution control structures, capture and treatment of first 30 mm runoff would be a good start for Malaysia.
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spelling upm.eprints-393992015-07-22T06:31:54Z http://psasir.upm.edu.my/id/eprint/39399/ First flush phenomenon study of storm runoff from a maize cultivated area Mansur, Rusnam Mohd Soom, Mohd Amin Idris, Azni Lee, Teang Shui Various studies conducted worldwide could not ascertain the existence of the first flush in every drainage outlet, during every storm event and for each pollutant. Hence there is a need to study the first flush phenomenon of runoff from an agricultural area. Rainfall in three seasons of maize cultivation was monitored. Twenty storm events of various intensities and durations were monitored in crop season I, nineteen in crop season II and eight in crop season III. Six parameters were monitored for the first flush study. First flush effect for most of the parameters was weak and closed to uniform for every storm event. Although it was minor, total suspended solids (TSS) exhibited first flush during all storm events. As such, first flush separation would not be an effective criterion for diffuse or nonpoint source pollution control in the study area. Based on the rainfall analysis it was recommended that to avoid the ambiguity pertaining to first flush phenomenon and to simplify the criterion for designing the nonpoint source pollution control structures, capture and treatment of first 30 mm runoff would be a good start for Malaysia. 2005 Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39399/1/39399.pdf Mansur, Rusnam and Mohd Soom, Mohd Amin and Idris, Azni and Lee, Teang Shui (2005) First flush phenomenon study of storm runoff from a maize cultivated area. In: International Conference on Advanced Materials 2005: Conference on Bio-Engineering (CoBE 2005), 6-8 Dec. 2005, Putrajaya, Malaysia. . (Unpublished)
spellingShingle Mansur, Rusnam
Mohd Soom, Mohd Amin
Idris, Azni
Lee, Teang Shui
First flush phenomenon study of storm runoff from a maize cultivated area
title First flush phenomenon study of storm runoff from a maize cultivated area
title_full First flush phenomenon study of storm runoff from a maize cultivated area
title_fullStr First flush phenomenon study of storm runoff from a maize cultivated area
title_full_unstemmed First flush phenomenon study of storm runoff from a maize cultivated area
title_short First flush phenomenon study of storm runoff from a maize cultivated area
title_sort first flush phenomenon study of storm runoff from a maize cultivated area
url http://psasir.upm.edu.my/id/eprint/39399/1/39399.pdf
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AT idrisazni firstflushphenomenonstudyofstormrunofffromamaizecultivatedarea
AT leeteangshui firstflushphenomenonstudyofstormrunofffromamaizecultivatedarea