In:
Water Quality Research Journal, IWA Publishing, Vol. 51, No. 3 ( 2016-08-11), p. 219-232
Abstract:
This paper presents the outcomes of a study on the water quality of Dubai Creek which aimed to assess its eutrophication status. Field water quality data from stations along the creek collected in 2012 and 2013 were used. Ordinary least squares (OLS) and spatial autocorrelation analyses were used as part of geographic information system (GIS)-based exploratory regression analysis to study the relationship between chlorophyll-a and nutrients, specifically total nitrogen and phosphate. Multiple logistic regression analysis was used to study the vulnerability of the creek to eutrophication. Results showed unique trends of spatiotemporal variability of chlorophyll-a and nutrients. OLS modeling showed high correlation between field and modeled chlorophyll-a values between Al Garhoud Bridge and Sanctuary stations, located about 2 km upstream and downstream of the Sewage Treatment Plant (STP) Outfall station. Furthermore, results showed the lower half of the creek was more vulnerable to eutrophication than the upper, which was believed to be due to the location of the STP station, poor flushing, shallow water depth, and irregular circulation patterns in the creek. Accordingly, this study recommends development of a mitigation plan in order to control the levels of nutrients in the creek.
Type of Medium:
Online Resource
ISSN:
1201-3080
,
2408-9443
DOI:
10.2166/wqrjc.2015.020
Language:
English
Publisher:
IWA Publishing
Publication Date:
2016
detail.hit.zdb_id:
2948758-4
detail.hit.zdb_id:
2739923-0
SSG:
12
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