Assessment of Surface Water Quality for Drinking by Combining Three Water Quality Indices with Their Usefulness: Case of Damodar River in India

Das, Chinmoy Ranjan; Das, Subhasish

doi:10.1007/s11270-023-06342-4

Cited by 9 publications

(1 citation statement)

References 53 publications

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“…It was clear that various physicochemical parameters including EC, pH, TDS, turbidity, TSS, TS, DO, BOD, COD indicate the stream water quality (Schwarzenbach et al, 2010). High inorganic matter and nutrient waste discharges might decrease the DO concentrations because of increased microbial activity (respiration of microorganisms) (Das and Acharya, 2003). The increased values oxygen-related characteristics indicate the excessive content of the biodegradable organic matter that increases de-oxygenation of water to the level that aquatic life cannot survive (NBI, 2005).…”

Section: -Chemical Parameters and Biological Pathogenic For El-gharbi...mentioning

confidence: 99%

A Qualitative and Quantitative Study on El-Gharbia Main Drain Wastewater

Abd El-Razik,

El Tohamy,

Khafagy

2023

Journal of Soil Sciences and Agricultural Engineering

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The use of El-Gharbia main drain wastewater for agriculture practices and fishing poses serious risks to the residents of villages in El-Gharbia and Dakahlia governorates, as well as a number of Kafr El-Sheikh centers. Three sources of wastewater disposal into El-Gharbia main drain, such as sewage, agricultural and industrial drainage. The current study aims to estimate the quality of El-Gharbia main drain water for reuse to irrigate agricultural soils according to environmental quality standards. Samples (water and sediments) were collected from fifteen sites along El-Gharbia main drain (more than 100km) in the winter of 2020 and the summer of 2021. The results showed that the content of water and sediments samples of micronutrients (Fe, Mn, Zn, Cu and B) and heavy metals (Cd, Co, Cr, Ni and Pb) differed from one site to another. In some cases, the overall mean exceeded the permissible limit in both seasons under study, but the pollution degree was higher in the summer season. The biological analysis of pathogenic bacteria under study showed that the numbers of pathogenic bacteria exceeded the permissible limit in both seasons under study, and the numbers of pathogenic bacteria in summer was higher.

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Section: -Chemical Parameters and Biological Pathogenic For El-gharbi...mentioning

confidence: 99%

A Qualitative and Quantitative Study on El-Gharbia Main Drain Wastewater

Abd El-Razik,

El Tohamy,

Khafagy

2023

Journal of Soil Sciences and Agricultural Engineering

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Water quality evaluation based on water quality index and multiple linear regression: A research on Hanyuan Lake in southern Sichuan Province, China

Su,

Peng,

Zhu

et al. 2024

Water Environment Research

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This study aims to understand the changes in the water quality of Hanyuan Lake and to show these changes over time. In this study, monthly sampling was conducted at three sampling sites in Hanyuan Lake, and water samples were measured for water quality indicators in the laboratory according to the methods specified in the Environmental Quality Standards for Surface Water (GB3838‐2002). Based on the monitoring data from January to December 2019, the WQI comprehensive evaluation method was used to conduct multiple linear stepwise regression analysis, extract key indicators, and establish the WQImin model. The results show that according to the WQI comprehensive evaluation method, the WQI values of Hanyuan Lake are all above 90, and the grade is excellent. The overall water quality of Hanyuan Lake is excellent, and most of the water quality indexes reach the Class I standard in the Environmental Quality Standards for Surface Water (GB3838‐2002). WQImin1 (R2 = 0.86, p < 0.001, PE = 4.28) as the best WQImin model. In this study, a model with fewer parameters was established by multiple linear regression method, which is conducive to better monitoring of water quality at monitoring stations while saving costs.Practitioner Points According to the WQI comprehensive evaluation method, the WQI values of Hanyuan Lake are all above 90, the rating is excellent. From January 2019 to September 2020, the monthly change trend of each section is roughly the same, showing a trend of first decreasing, then rising, then decreasing, and finally rising and flattening. The WQImin model was developed to completely describe the change in the water body.

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