Water Quality Index as a Tool for Assessment of Status of an Urban Lake of Mumbai

Usman, Andi Mayasari; Dube, Kiran; Shukla, Satyavati; Salaskar, P.; Prakash, Chander; Sawant, Paramita Banerjee; Singh, Rashmi

doi:10.20546/ijcmas.2018.704.061

Cited by 12 publications

(17 citation statements)

References 39 publications

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“…Drastic temperature variations that could affect aquatic life [57] were not observed in the study. These observations were comparable with the values reported by Usman et al [40] and Kadu et al [58]. It is also to be noted that one of the previous studies reported water temperature values in the range of 20 • C to 34 • C in Powai Lake [39].…”

Section: Do Ph and Tdssupporting

confidence: 91%

“…pH values were on the higher side of the permissible tolerable alkaline pH (< especially during the summer season at sampling stations GG, TG, GH, and H9. Usm et al [40] reported a similar range of pH values in Powai Lake during a one-year stu period between 2016 and 2017. A prime factor for the high pH levels in Powai Lake mi be the increased assimilation of carbonates and bicarbonates triggered by immersion idols year-after-year in large numbers in Powai Lake.…”

Section: Do Ph and Tdsmentioning

confidence: 75%

“…However, local informal settlements are not connected to a sewerage network with some portion of their wastewaters running into the Lake [35]. Recent studies indicate that poor water quality (including levels of organics and nutrients) in Powai Lake are associated with disposal of sewage and urban runoff as well as episodic pollution on account of idol immersion and religious rituals [1,[36][37][38][39][40][41]. Surya et al [42], in their study on fish ecology, linked the ecological degradation of the Lake to pollution inflows.…”

Section: Introductionmentioning

confidence: 99%

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Science & Technology Agenda for Blue-Green Spaces Inspired by Citizen Science: Case for Rejuvenation of Powai Lake

et al. 2021

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Urban lakes play a major role in the socio-cultural and ecological sustainability of many cities, but are often under major development and pollution pressures. Urban decision makers are faced with a challenging task of identifying the causes of their decline and building plans for their conservation or rejuvenation. Powai Lake is a perfect example of an urban water body with historic, cultural, and ecological importance to the population of Metropolitan Mumbai, with local and regional authorities, including the Urban Development Department, Government of Maharashtra, working to identify methods for rejuvenating the Lake. In this context, characterization of pollution dynamics, hotspots, and extent is fundamental to the development of management plans and appropriate technologies for the remediation and rejuvenation of Powai Lake—the long-term goal of the present study. A two-year monitoring program at eight sampling locations on the Lake’s periphery, with the engagement of citizen scientists along with environmental researchers, revealed clear seasonal and spatial dynamics that allowed for the identification of pollution drivers and the development of a three-phase rejuvenation plan. The plan represents a novel and holistic approach that recognizes Powai Lake as a complex system with multiple drivers, and aims at ecological balance and sustainable delivery of ecosystem services.

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Section: Do Ph and Tdssupporting

confidence: 91%

Section: Do Ph and Tdsmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

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Science & Technology Agenda for Blue-Green Spaces Inspired by Citizen Science: Case for Rejuvenation of Powai Lake

et al. 2021

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“…For water quality assessment of aquatic ecosystems, water quality index (WQI), which summarises large quantities of water quality data and describes the general water quality by a single number (Bakan et al, 2010; Debels et al, 2005; Katyal, 2011; Lermontov et al, 2011), is widely applied. Based on the WQI method, Radwan et al (2019) and Usman et al (2018) assessed the water quality of Lake Idku in Egypt and Lake Powai in Mumbai, India, respectively; Worako (2015) revealed that Lake Hawassa in Ethiopia is at high risk due to human activities from its water quality assessment during the dry season; Koçer and Sevgili (2014) quantified the impact of salmon farms on the water quality of the Esen stream in Turkey; Pesce and Wunderlin (2000) illustrated the serious negative impact of urban activities on the Suquia River in Argentina; Simões et al (2008) disclosed the impacts of aquaculture activities on the water quality of the Medio Paranapanema Watershed in Sao Paulo State, Brazil and suggested management measures for it; Sun et al (2016) analysed the temporal and spatial changes in the water quality of the Dongjiang river and determined its water quality classification; Wu et al (2018) explored seasonal water quality variations for different river systems in the Lake Taihu Basin. Many methods of evaluation have been developed to assess the eutrophication levels in lakes, such as the fish index developed by Argillier (Argillier et al, 2013), improved OTI (iOTI) and modified trophic index (mTI) based on oligochaete trophic index (OTI) (Burlakova et al, 2018), TSI (Xing et al, 2005), and trophic level index (TLI) (China Environmental Monitoring Station, 2001).…”

Section: Introductionmentioning

confidence: 99%

Spatio‐temporal dynamics of water quality and eutrophication in Lake Taihu, China

Zhu

Chen

et al. 2021

Ecohydrology

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Water quality evaluation in Lake Taihu, China, is vital for the regional water security. Recent studies have focused on understanding the spatio‐temporal dynamics of water conditions using long‐term data series. In this study, water conditions of Lake Taihu during non‐cyanobacterial/cyanobacterial growth periods were assessed based on water quality index (WQI), trophic level index (TLI), chlorophyll a concentration, and algal density; the spatio‐temporal changes in water quality were quantified, and their corresponding driving forces were discussed. The study employed water quality data from 2013 to 2018 and algal density data from 2013 to 2017. The results revealed that the water conditions varied over the years; it was the poorest in 2013, improved slightly in 2014, deteriorated during 2015–2017, and improved again in 2018. Slow algal growth was observed from May to July, which accelerated from August–September. The TLI in Lake Taihu may increase due to significant inflow during wet years, which may increase the eutrophication area and algae density in the following year, necessitating extreme caution. The northwestern part of Lake Taihu exhibited a lower WQI and higher TLI than its southeastern part. In the bays with high TLI, the WQI during the cyanobacterial growth period was lower than the non‐cyanobacterial growth period; the converse was observed in bays with low TLI. The results of this study imply that water conditions of Lake Taihu could be enhanced by reducing the nutrient load in wet seasons and wet years and improving the hydrodynamic conditions through water diversion, especially in Zhushan and Meiliang bays.

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“…The CCME WQI model is widely used worldwide by researchers to evaluate water sources and determine the degree of contamination. This model is concerned with the weight of the parameters, which is a deviation of even one test from the standard limits, but also to the weight of each measurement (test value) deviated from the standard limits, which gives high precision in the assessment of water quality studied [9][10][11]. Therefore, the study was conducted with the aim of assessing the groundwater of Al Nimrud district for drinking purposes using the Canadian Model.…”

Section: Introductionmentioning

confidence: 99%

Water Quality of Nimrud District Wells Southeast of Mosul City for Drinking and Civil Purpose Using the Canadian Model of Water Quality

Al-Saffawi

2019

Pak. J. Anal. Environ. Chem.

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The current study aims at determining the water quality of the Nimrud district wells, southwest of Mosul, for drinking and civilian purposes by using the Canadian model of water quality. The aquatic samples were collected from randomly distributed wells in the area during the dry season for chemical and physical testing to assess their quality. The results of the study indicated the high levels of most of the studied characteristics, which reflected negatively on the values of CCME WQI (Canadian Council of Ministers of the Environmental Water Quality Index), where 70% of them classified as poor quality water for drinking and domestic use. The study recommended periodic monitoring of the quality of water with water treatment processes before being used for drinking.

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Water Quality Index as a Tool for Assessment of Status of an Urban Lake of Mumbai

Cited by 12 publications

References 39 publications

Science & Technology Agenda for Blue-Green Spaces Inspired by Citizen Science: Case for Rejuvenation of Powai Lake

Science & Technology Agenda for Blue-Green Spaces Inspired by Citizen Science: Case for Rejuvenation of Powai Lake

Spatio‐temporal dynamics of water quality and eutrophication in Lake Taihu, China

Water Quality of Nimrud District Wells Southeast of Mosul City for Drinking and Civil Purpose Using the Canadian Model of Water Quality

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