Surface water quality assessment for the management of hydrological regimes: Kalu Oya and Mudun Ela catchment in Sri Lanka

Thotagamuwa, H.T.B.N.; Weerasinghe, V.P.A.

doi:10.1016/j.enmm.2020.100402

Cited by 6 publications

(5 citation statements)

References 15 publications

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“…3i; Table 4). The level of COD was also found higher than BOD, which is not staggering since more organic compounds can be chemically oxidised than that of biological oxidation (Thotagamuwa and Weerasinghe 2021). The present findings for COD were consistent with Mozumder et al (2015) for similar river of interest.…”

Section: Descriptive Statistics Of Water Quality Indicatorssupporting

confidence: 92%

Assessment of Urban River Water Quality Using Modified NSF Water Quality Index Model at Siliguri City, West Bengal, India

et al. 2022

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Section: Descriptive Statistics Of Water Quality Indicatorssupporting

confidence: 92%

Assessment of Urban River Water Quality Using Modified NSF Water Quality Index Model at Siliguri City, West Bengal, India

et al. 2022

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“…(2020) assessed the impact of open solid waste dumping on the water quality of Meda Ela using PCA. Similarly, Thotagamuwa and Weerasinghe (2021) assessed the surface water quality in the Kalu Oya and Mudun Ela catchments using PCA. Hence, Wijeyaratne and Nanayakkara (2020) applied PCA to monitor the water quality in Diyawannawa wetlands along with phytoplankton‐based indices.…”

Section: Introductionmentioning

confidence: 99%

Water quality monitoring and assessment in coastal lagoons: Developing a protocol using a case study in Sainthamaruthu lagoon, Sri Lanka

Begum,

Weragoda,

Mowjood

2023

Environmental Quality Mgmt

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Sustainable water resources management requires monitoring and assessment of water quality in addition to quantity. Coastal lagoons play a critical role for the people and the ecosystem at large. Water quality monitoring and assessment for lagoons in Sri Lanka is important considering its services to the country. However, due to a lack of resources, most of the lagoons are not monitored and reported properly for further action. This study aims to develop a protocol in terms of monitoring sites, parameters, and frequency for water quality monitoring using a case study in a coastal lagoon, in Sainthamaruthu, Sri Lanka. The physicochemical parameters were measured weekly at eighteen monitoring sites for 4 months during the dry season from June to September 2022. Cluster analysis (CA) along with Inverse Distance Weighted (IDW) interpolation technique revealed that a minimum of three sites out of 18 are sufficient for monitoring water quality in the lagoon. In light of Principal Component Analysis (PCA) and Discriminant Analysis (DA), it was decided to retain temperature, pH, turbidity, Total Dissolved solids (TDS), Electrical Conductivity (EC), and Dissolved Oxygen (DO) in monitoring programs, since they cumulatively account for 79% of the variation in water quality in the lagoon spatially and temporally. Monitoring turbidity, TDS, and EC at weekly interval, while monitoring temperature, pH, and DO at biweekly or monthly is recommended. A further indication of the lagoon's water quality is that the mean values for turbidity (27 NTU), EC (754 μS/cm), and DO (4.6 ppm) higher than ambient standards, while TDS (344 ppm) and pH (6.98) are within. Therefore, we conclude that the lagoon requires remediation measures to be suitable for environmental purposes during dry periods.

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“…Water scarcity hinders our ability to provide populations with water for drinking, recreation and economic purposes. This problem is both global and local, and it exists even in economically developed countries [3]. Among the post-Soviet states, Kazakhstan belongs to the lowest water-resource-rich republic.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Hydrophysical and Hydrochemical Characteristics of Lake Burabay (Akmola Region, North Kazakhstan)

Shulembayeva,

Rodrigo-Ilarri,

Rodrigo-Clavero

et al. 2023

Sustainability

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This paper shows the results of a study on the morphometric, hydrophysical, and hydrochemical indicators of Lake Burabay, North Kazakhstan. The Burabay Protected Area, also known as Burabay National Park or Kokshetau National Park, is a protected natural area located in the north of Kazakhstan. It encompasses a diverse landscape characterized by lakes, forests, and unique rock formations. This analysis includes an eco-toxicological assessment of the hydrochemical composition of waters and benthal deposits by studying the content of metals. The degree of mineralization, ionic composition of water, hydrogen index, pollution index, and water quality class were also determined. Reductions in the area and depth of the lake were identified. The pollution index is 1.5–1.7, which belongs to class 3—moderately polluted. Relatively high concentrations of cadmium, nickel, copper, and arsenic were found in the lake sediments. Therefore, Lake Burabay and its surrounding ecosystem face certain environmental risks and potential water pollution. Although the increase in the number of tourists did not have a significant impact on the water pollution index in Lake Burabay, some of the common threats that impact the area are induced by touristic development, agricultural practices and industrial pollution. Significant efforts should be made to reduce these risks using the environmental indicators as a reference for control environmental quality.

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Surface water quality assessment for the management of hydrological regimes: Kalu Oya and Mudun Ela catchment in Sri Lanka

Cited by 6 publications

References 15 publications

Assessment of Urban River Water Quality Using Modified NSF Water Quality Index Model at Siliguri City, West Bengal, India

Assessment of Urban River Water Quality Using Modified NSF Water Quality Index Model at Siliguri City, West Bengal, India

Water quality monitoring and assessment in coastal lagoons: Developing a protocol using a case study in Sainthamaruthu lagoon, Sri Lanka

Assessment of the Hydrophysical and Hydrochemical Characteristics of Lake Burabay (Akmola Region, North Kazakhstan)

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