scholarly journals Assessing Water Quality by Statistical Methods

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1026
Author(s):  
Alina Bărbulescu ◽  
Cristian Ștefan Dumitriu
Keyword(s):  
Water Quality ◽  
Natural Resources ◽  
Statistical Methods ◽  
Anthropogenic Activities

Water is one of the natural resources most affected by anthropogenic activities, like industry, agriculture, and traffic [...]

scholarly journals DIAGNÓSTICO AMBIENTAL DOS AFLUENTES DO CÓRREGO DO LAJEADO NO MUNÍCIPIO DE PIRAPOZINHO –SP

2019 ◽  
Vol 11 (4) ◽  
pp. 104-121
Author(s):  
Melissa Arantes Pinto ◽  
Vitoria Marta Venancio Rodrigues ◽  
Bianca Soares de Souza ◽  
Yeda Ruiz Maria ◽  
Elson Mendonca Felici ◽  
...  
Keyword(s):  
Water Quality ◽  
Natural Resources ◽  
Natural Environment ◽  
Anthropogenic Activities ◽  
Environmental Valuation ◽  
External Factors ◽  
Laboratory Analysis ◽  
Literature Searches

The environmental diagnosis of the tributaries of the Lajeado Stream tributaries in Pirapozinho / SP is a study that will evaluate the characteristics of the natural environment, as well as the interactions and interferences caused by anthropogenic activities in the environment and the impacts resulting from these actions. This characterization will be done through visual on-site surveys, laboratory analysis and literature searches that allow a better understanding of the behavior of a watershed in face of external factors. In this sense, we evaluate procedures such as soil use and occupation, water quality, environmental valuation, development of vegetative areas, soil qualification, among other aspects. Thus, the interpretation of the quality of the natural resources raised and their interference will support an assessment of which identified impacts are likely to be mitigated in order to employ the necessary recovery and improvement technologies in the area.

Influence of Anthropogenic Pressures on Groundwater Quality from a Rural Area

2017 ◽  
Vol 68 (8) ◽  
pp. 1744-1748
Author(s):  
Catalina Stoica ◽  
Gabriela Geanina Vasile ◽  
Alina Banciu ◽  
Daniela Niculescu ◽  
Irina Lucaciu ◽  
...  
Keyword(s):  
Water Quality ◽  
Anthropogenic Activities ◽  
Groundwater Resources ◽  
Bacterial Load ◽  
Animal Husbandry ◽  
Anthropogenic Factors ◽  
Contamination Level ◽  
Anthropogenic Pressures ◽  
Limit Values ◽  
Physico Chemical

During the past few decades, the anthropogenic activities induced worldwide changes in the ecological systems, including the aquatic systems. This work analysed the contamination level of groundwater resources from a rural agglomeration (Central-Western part of Prahova County) by biological and physico-chemical approaches. The study was performed during the autumn of 2016 on several sampling sites (four drilling wells, depth higher than 100 m supplying three villages; two wells lower than 10 m depth and one spring). The water quality was evaluated by comparison with the limit values of the drinking water quality legislation (Law no.458/2002) and the Order 621/2014 (applicable to all groundwater bodies of Romania). The results showed that phenols and metals (iron and manganese) exceeded the threshold values in all sampling sites. Moreover, the anthropogenic factors including agriculture, use of fertilizers, manures, animal husbandry led to an increase of the bacterial load, particularly at wells sites.

Applying the Soil Water Assessment Tool to 5th Canadian Division Support Base Gagetown

2014 ◽  
Vol 49 (4) ◽  
pp. 372-385
Author(s):  
Shawn Burdett ◽  
Michael Hulley ◽  
Andy Smith
Keyword(s):  
Water Quality ◽  
Soil Water ◽  
Land Management ◽  
Management Practices ◽  
Assessment Tool ◽  
Anthropogenic Activities ◽  
Quality Model ◽  
Sediment Yields ◽  
Soil Water Assessment Tool ◽  
Water Assessment

A hydrologic and water quality model is sought to establish an approach to land management decisions for a Canadian Army training base. Training areas are subjected to high levels of persistent activity creating unique land cover and land-use disturbances. Deforestation, complex road networks, off-road manoeuvres, and vehicle stream crossings are among major anthropogenic activities observed to affect these landscapes. Expanding, preserving and improving the quality of these areas to host training activities for future generations is critical to maintain operational effectiveness. Inclusive to this objective is minimizing resultant environmental degradation, principally in the form of hydrologic fluctuations, excess erosion, and sedimentation of aquatic environments. Application of the Soil Water Assessment Tool (SWAT) was assessed for its ability to simulate hydrologic and water quality conditions observed in military landscapes at 5th Canadian Division Support Base (5 CDSB) Gagetown, New Brunswick. Despite some limitations, this model adequately simulated three partial years of daily watershed outflow (NSE = 0.47–0.79, R2 = 0.50–0.88) and adequately predicted suspended sediment yields during the observation periods (%d = 6–47%) for one highly disturbed sub-watershed in Gagetown. Further development of this model may help guide decisions to develop or decommission training areas, guide land management practices and prioritize select landscape mitigation efforts.

scholarly journals Historical Assessments of Inorganic Pollutants in the Sinkhole Region of Winkler County, Texas, USA

2021 ◽  
Vol 13 (13) ◽  
pp. 7513
Author(s):  
Joshua Lozano ◽  
Joonghyeok Heo ◽  
Mijin Seo
Keyword(s):  
Water Quality ◽  
Environmental Protection Agency ◽  
Water Contamination ◽  
Oil And Gas ◽  
Anthropogenic Activities ◽  
Inorganic Pollutants ◽  
Safety Standards ◽  
The Public ◽  
West Texas ◽  
Contamination Levels

The purpose of this study was to evaluate the public water contamination levels of Winkler County, in West Texas. With water scarcity becoming more prevalent in arid climates like West Texas, it is important to ensure the water quality in these areas. The Dockum and Pecos Valley aquifers were analyzed for inorganic pollutants that could inhibit the water. The parameters such as copper, lead, arsenic, nitrate, chloride, and chromium level reports were provided from 1972 to 2018 to analyze and compare to other studies such as the ones conducted in the Midland/Odessa area. The results were compared to the Environmental Protection Agency (EPA) safety standards, and conclusions were made for the safety consumption of water within the county. We found that inorganic pollutants resulted mainly from the mobilization of the contaminant from anthropogenic activities such as chemical fertilizers, oil and gas developments. This research provides important information for inorganic pollutants in the sinkhole region of Winkler County and contributes to understanding the response to the aquifers. The significance of water quality in West Texas is now more important than ever to ensure that everyone has clean drinking water.

Impact of geology and anthropogenic activities over the water quality with emphasis on fluoride in water scarce Lalitpur district of Bundelkhand region, India

Chemosphere ◽  
2021 ◽  
Vol 279 ◽  
pp. 130496
Author(s):  
Neeraj Pant ◽  
Shive Prakash Rai ◽  
Rajesh Singh ◽  
Sudhir Kumar ◽  
Ravi K. Saini ◽  
...  
Keyword(s):  
Water Quality ◽  
Anthropogenic Activities ◽  
Water Scarce

scholarly journals Dissolved organic nutrients at the interface of fresh and marine waters: flow regime changes, biogeochemical cascades and picocyanobacterial blooms—the example of Florida Bay, USA

2021 ◽  
Author(s):  
Patricia M. Glibert ◽  
Cynthia A. Heil ◽  
Christopher J. Madden ◽  
Stephen P. Kelly
Keyword(s):  
Water Quality ◽  
Anthropogenic Activities ◽  
Florida Bay ◽  
Climate Conditions ◽  
Regime Changes ◽  
Physico Chemical ◽  
Organic Nutrients ◽  
High Concentrations ◽  
Chemical Conditions ◽  
Favorable Conditions

AbstractThe availability of dissolved inorganic and organic nutrients and their transformations along the fresh to marine continuum are being modified by various natural and anthropogenic activities and climate-related changes. Subtropical central and eastern Florida Bay, located at the southern end of the Florida peninsula, is classically considered to have inorganic nutrient conditions that are in higher-than-Redfield ratio proportions, and high levels of organic and chemically-reduced forms of nitrogen. However, salinity, pH and nutrients, both organic and inorganic, change with changes in freshwater flows to the bay. Here, using a time series of water quality and physico-chemical conditions from 2009 to 2019, the impacts of distinct changes in managed flow, drought, El Niño-related increases in precipitation, and intensive storms and hurricanes are explored with respect to changes in water quality and resulting ecosystem effects, with a focus on understanding why picocyanobacterial blooms formed when they did. Drought produced hyper-salinity conditions that were associated with a seagrass die-off. Years later, increases in precipitation resulting from intensive storms and a hurricane were associated with high loads of organic nutrients, and declines in pH, likely due to high organic acid input and decaying organic matter, collectively leading to physiologically favorable conditions for growth of the picocyanobacterium, Synechococcus spp. These conditions, including very high concentrations of NH4+, were likely inhibiting for seagrass recovery and for growth of competing phytoplankton or their grazers. Given projected future climate conditions, and anticipated cycles of drought and intensive storms, the likelihood of future seagrass die-offs and picocyanobacterial blooms is high.

Assessment of the Water Quality of the Mirim Lagoon and the São Gonçalo Channel Through Qualitative Indices and Statistical Methods

2021 ◽  
Vol 232 (5) ◽  
Author(s):  
Vitória Rovel da Silveira ◽  
Marlon Heitor Kunst Valentini ◽  
Gabriel Borges dos Santos ◽  
Willian Cezar Nadaleti ◽  
Bruno Muller Vieira
Keyword(s):  
Water Quality ◽  
Statistical Methods

Impact of anthropogenic activities on water quality parameters of glacial lakes from Rodnei mountains, Romania

2020 ◽  
Vol 182 ◽  
pp. 109136
Author(s):  
Oana Mare Roșca ◽  
Thomas Dippong ◽  
Monica Marian ◽  
Cristina Mihali ◽  
Lucia Mihalescu ◽  
...  
Keyword(s):  
Water Quality ◽  
Anthropogenic Activities ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Glacial Lakes

scholarly journals Evaluation of Groundwater Quality in the Vicinity of Khurrianwala Industrial Zone, Pakistan

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1321 ◽  
Author(s):  
Muhammad Aleem ◽  
Cao Shun ◽  
Chao Li ◽  
Arslan Aslam ◽  
Wu Yang ◽  
...  
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Anthropogenic Activities ◽  
World Health ◽  
Total Hardness ◽  
Industrial Zone ◽  
High Concentration ◽  
Physico Chemical ◽  
Health Organization ◽  
National Environmental

The industrial augmentation and unguided anthropogenic activities contaminate water sources in most parts of the world especially in developing countries like Pakistan. High concentration of pollutants in groundwater affects human, soil, and crop health badly. The present study was conducted to investigate groundwater quality for drinking and irrigation purposes in an industrial zone of Pakistan. A GIS tool was used to investigate the spatial distribution of different physico-chemical parameters. In this study, the average results exceeding World Health Organization (WHO) and National Environmental Quality Standards (NEQS) were found for pH 7.84, total dissolved solids (TDS) 1492 mg/L, phosphate 0.51 mg/L, dissolved oxygen (DO) 9.92% saturation, F-coli 6.48 colonies/100 mL, Na+ 366 mg/L, HCO3− 771 mg/L, sulfate 251 mg/L, chlorides 427 mg/L, total hardness (as CaCO3) 292 mg/L, electrical conductivity (EC) 2408 μS/cm, iron (Fe) 0.48 mg/L, chrome (Cr) 0.50 mg/L, arsenic (As) 0.04 mg/L, total phosphorus (TP) 0.17 mg/L, sodium adsorption ratio (SAR) 9.76 (in meq/L), residual sodium carbonate (RSC) 9.28 meq/L, % ion balance 14.4 (in meq/L), percentage sodium ion (% Na+) concentration 58.9 meq/L, and water quality index (WQI) 69.0. The trend of cations and anions were (in meq/L) Na > Mg > Ca > K and HCO3 > Cl > CO3 > SO4 respectively. Although the results of the present study showed poor conditions of the groundwater for drinking as WQI but and irrigation purposes as SAR, it needs to improve some more conditions for the provision of safe drinking water and irrigation water quality.

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