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Urban Area Dry Diffuse Pollutants Washoff Composition

Saadat Ashraf and Azam Khan (2006)
Univ. of Eng'g & Technology, Australia
Sun Water, Australia
DOI: https://doi.org/10.14796/JWMM.R225-07
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Abstract

This chapter presents the characteristics of urban area dry pollutants buildup and subsequent washoff in stormwater in Perth, Western Australia. Accumulated dust and dirt (DD) and stormwater runoff were sampled and analyzed for associated pollutants. The study concludes that total DD and associated pollutants present significant temporal and spatial variations. Surface texture was found to be an important factor in pollutant buildup, which can affect the initial and maximum DD loadings on the surfaces. The antecedent dry period had pronounced effects on dry solids (DD and associated pollutants). Suspended solids (SS), zinc (Zn) and copper (Cu) washoff loads from impervious areas had significant variations among the test areas. Washoff concentration variations of total phosphorus (TP), nitrite and nitrate (NO2+NO3) were insignificant among test areas. The dissolved fraction of total phosphorus and NO2+NO3 was between 22 to 43% and 50 to 62%, respectively. It was observed that the initial mass of dry pollutants from impervious surfaces was much greater than the observed washoff load. Only minor portions of dry pollutants (DD and associated pollutants) were available for washoff. The available washoff load was between 0.5 to 3.5% for TP, Zn and Cu of the total dry pollutants initially accumulated on the catchments impervious areas. No correlation was found between washoff load and inter-event dry period.

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PAPER INFO

Identification

CHI ref #: R225-07 866
Volume: 14
DOI: https://doi.org/10.14796/JWMM.R225-07
Cite as: JWMM 14: R225-07

Publication History

Received: N/A
First decision: N/A
Accepted: N/A
Published: February 15, 2006

Status

# reviewers: 2
Version: Final published

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© 2006 CHI.
Some rights reserved.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

All papers published in the JWMM are licensed under a Creative Commons Attribution 4.0 International License (CC BY).

JWMM content can be downloaded, printed, copied, distributed, and linked-to, when providing full attribution to both the author/s and JWMM.


AUTHORS

Saadat Ashraf

Univ. of Eng'g & Technology, Peshawar, Pakistan, Australia
ORCiD:

Azam Khan

Sun Water, Brisbane, Australia
ORCiD:


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creative commons license   JWMM content is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0 DEED)


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