Long-term changes of fish biotic integrity in the Sanmenxia Wetland, North China, since the 1950s were assessed using the fish index of biological integrity (FIBI). The water and sediment quality was evaluated by the water quality index (WQI) and sediment pollution index (SPI). The results showed that FIBI continuously decreased from 46 to 20 during the past 5 decades, which indicated that the ...

The hemipteran (Insecta) diversity in the upper part of the Kerian River Basin was low with only 8 families and 16 genera recorded at 4 study sites from 3 rivers. Water bug composition varied among sampling sites (Kruskal-Wallis χ (2) = 0.00, p<0.05) but was not affected by wet-dry seasons (Z = 0.00, p>0.05). All recorded water parameters were weakly associated with generic abundance but the bi...

A study of the quality drinking water sources - surface waters river systems city Latacunga and canton Pedro Vicente Maldonado, Ecuador, was carried out during 2018 2019. The general sanitary index (WQI) calculated according to Russian methods, National Sanitation Foundation (NSF-WQI) Ecuadorian regulation. Results from parameterizing quality, obtained by WQI NSF-WQI methods combined into an ov...

Abstract The 2000 European Union Water Framework Directive (WFD) states that “Member States shall ensure the necessary protection for bodies of water identified with aim avoiding deterioration in their quality order to reduce level purification treatment required production drinking water.” However, it does not specify how evaluate or quantify this treatment. We propose a novel index (WQI) prep...

Prediction and assessment of water quality are important aspects resource management. To date, several index (WQI) models have been developed improved for effective However, the application these is limited because their inherent uncertainty. improve reliability WQI model quantify its uncertainty, we a WQI-Bayesian averaging (BMA) based on BMA method to merge different comprehensive groundwater...

The Mundeswari River is the western distributary of Damodar system in eastern India. water this river extensively used for domestic purposes and agricultural irrigation. This study aimed to evaluate spatial temporal quality variation assess status using Canadian Council Ministers Environment Water Quality Index (CCME-WQI). was monitored monthly at four selected sampling stations (M1, M2, M3, M4...

Abstract The aim of this study is to determine the Caracosh (Al-Hamdannia district) groundwater water quality index (CCME WQI). This was calculated by taking samples and putting them into a thorough physicochemical examination. For calculating WQI, following 9 parameters have been considered: pH, TDS, T. Alkalinity, hardness, Ca, Mg, Chloride, Sulphate Nitrate. WQI for these ranges from 25.19 9...

conclusions according to the average of wqi index, quality of water was good in station number one, medium in station number two, and bad in the rest of stations. according to the wilcox index, qualities of water in third station were medium and in the rest were good. results by using wqi, the best water quality was reported in station number one with the scalar quantity of 71.11 (water with be...

The present study was mainly proposed to investigate the quality of groundwater for drinking in Kifri District. main aim this identify some pollutants using two types indexes which are: Nemerow’s pollution index (NPI) and Water (WQI). samples were collected from 36 stations (deep wells) analyzed seven physico-chemical parameters including EC, TDS, pH, TH, TA, Ca+2 andSO4-2; as well as, results ...