scholarly journals Sachet water quality and Vendors’ practices in Damongo, northern Ghana during the emergence of SARS-CoV-2 using multivariate statistics, water quality and pollution indices, and panel assessment

2021 ◽  
pp. 100164
Author(s):  
Ebenezer Ebo Yahans Amuah ◽  
Emmanuel Martin Obeng Bekoe ◽  
Raymond Webrah Kazapoe ◽  
Paul Dankwa ◽  
Solomon Nandomah ◽  
...  
Keyword(s):  
Water Quality ◽  
Multivariate Statistics ◽  
Northern Ghana ◽  
Pollution Indices ◽  
Sachet Water

scholarly journals Spatial Variation of Water Chemistry in Aries River Catchment Western Romania

2021 ◽  
Vol 11 (14) ◽  
pp. 6592
Author(s):  
Ana Moldovan ◽  
Maria-Alexandra Hoaghia ◽  
Anamaria Iulia Török ◽  
Marius Roman ◽  
Ionut Cornel Mirea ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Chemistry ◽  
Water Samples ◽  
Mine Drainage ◽  
Pollution Indices ◽  
Mining Activities ◽  
River Catchment ◽  
High Concentrations ◽  
The Impact

This study aims to investigate the quality and vulnerability of surface water (Aries River catchment) in order to identify the impact of past mining activities. For this purpose, the pollution and water quality indices, Piper and Durov plots, as well vulnerability modeling maps were used. The obtained results indicate that the water samples were contaminated with As, Fe, Mn, Pb and have relatively high concentrations of SO42−, HCO3−, TDS, Ca, K, Mg and high values for the electrical conductivity. Possible sources of the high content of chemicals could be the natural processes or the inputs of the mine drainage. Generally, according to the pollution indices, which were correlated to high concentrations of heavy metals, especially with Pb, Fe and Mn, the water samples were characterized by heavy metals pollution. The water quality index classified the studied water samples into five different classes of quality, namely: unsuitable for drinking, poor, medium, good and excellent quality. Similarly, medium, high and very high vulnerability classes were observed. The Durov and Piper plots classified the waters into Mg-HCO3− and Ca-Cl− types. The past and present mining activities clearly change the water chemistry and alter the quality of the Aries River, with the water requiring specific treatments before use.

scholarly journals Diatom Algae-Indicators of Water Quality in the Lower Zarafshan River, Uzbekistan

Water ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 358
Author(s):  
Sophia Barinova ◽  
Karomat Mamanazarova
Keyword(s):  
Water Quality ◽  
Organic Pollution ◽  
Middle Part ◽  
Pollution Indices ◽  
Distribution Analysis ◽  
State Monitoring ◽  
Ecological Mapping ◽  
Semi Arid Region ◽  
Species Richness And Abundance ◽  
Toxicity Indices

This work is the first, the purpose of which was a comprehensive assessment of the ecological state of the lower reaches of the Zarafshan River using bioindication of water quality by diatoms based on species’ ecological preferences, pollution indices, statistics, and ecological mapping. A total of 198 species and subspecies of diatoms were first identified from 195 samples collected four times a year at six sites in the lower reaches of the Zarafshan River in 2009–2015. The richest species were Cymbella, Navicula, and Nitzschia. Pleurosira laevis, resistant to salinity, was first found in aquatic habitats in Uzbekistan. Bioindicators of nine environmental variables make up 91% of the list. Distribution analysis of variables, pollution indices (SLA—SládečDek index of saprobity), and toxicity indices (WESI—Water Ecosystem State Index) show increases in salinity, turbidity, and decreases in organic pollution downstream. The source of acidification can be the Navoi region. We found an increase in the ability to self-purify with an increase in species richness and abundance of diatoms in the lower part of Zarafshan. Thus, the ecosystem of the studied part of the river successfully copes with the incoming pollution from the middle part of Zarafshan and demonstrates some stability and successful self-purification with a water quality class of 2–3. The first studied lower reaches of the ecosystem of the Zarafshan River using bioindicators, statistics, and ecological mapping show that the problem of aridization in Central Asia does not necessarily lead to degradation of the river ecosystem and an increase in pollution, but with rational water use can improve water quality and self-purification processes. Hence, diatoms can be good indicators of river water quality in a semi-arid region and reflect the climate and anthropogenic load change. We recommend that attention be paid to nutrient and turbidity management and to expand state monitoring points to the lower part of the river up to the Karakul region.

A study of groundwater irrigation water quality in south-central Bangladesh: a geo-statistical model approach using GIS and multivariate statistics

2017 ◽  
Vol 37 (2) ◽  
pp. 193-214 ◽  
Author(s):  
M. Atikul Islam ◽  
Md. Mostafizur Rahman ◽  
Md. Bodrud-Doza ◽  
Md. Iftakharul Muhib ◽  
Mashura Shammi ◽  
...  
Keyword(s):  
Water Quality ◽  
Statistical Model ◽  
Multivariate Statistics ◽  
Irrigation Water ◽  
Irrigation Water Quality ◽  
South Central ◽  
Groundwater Irrigation ◽  
Model Approach

Assessment of water quality using different pollution indices and multivariate statistical techniques

2021 ◽  
pp. 165-178
Author(s):  
Vishal Sharma ◽  
Mamta Sharma ◽  
Shevita Pandita ◽  
Vinod Kumar ◽  
Jasmeet Kour ◽  
...  
Keyword(s):  
Water Quality ◽  
Statistical Techniques ◽  
Pollution Indices ◽  
Multivariate Statistical Techniques ◽  
Multivariate Statistical

scholarly journals Compartmentalisation and groundwater–surface water interactions in a prospective shale gas basin: Assessment using variance analysis and multivariate statistics on water quality data

2020 ◽  
Vol 34 (15) ◽  
pp. 3271-3294
Author(s):  
Miles P. Wilson ◽  
Fred Worrall ◽  
Sarah A. Clancy ◽  
Chris J. Ottley ◽  
Alwyn Hart ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Multivariate Statistics ◽  
Shale Gas ◽  
Variance Analysis ◽  
Quality Data ◽  
Water Quality Data

scholarly journals The Effects of Storage on Sachet Water Quality in Ogun State, Nigeria

2015 ◽  
Vol 19 (2) ◽  
pp. 183
Author(s):  
ZO Ajekunle ◽  
VO Ojekunle ◽  
AO Eruola ◽  
FF Oyebanji ◽  
KA Olatunde ◽  
...  
Keyword(s):  
Water Quality ◽  
Ogun State ◽  
Sachet Water
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