scholarly journals Impact of Covid-19 Lockdown on Availability of Drinking Water in the Arsenic-Affected Ganges River Basin

2021 ◽  
Vol 18 (6) ◽  
pp. 2832
Author(s):  
Srimanti Duttagupta ◽  
Soumendra N. Bhanja ◽  
Avishek Dutta ◽  
Soumyajit Sarkar ◽  
Madhumita Chakraborty ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
River Basin ◽  
Oxygen Demand ◽  
Water Sources ◽  
Quality Data ◽  
Ganges River ◽  
Drinking Water Sources ◽  
The Impact ◽  
Ganges River Basin

The 2020 COVID-19 pandemic has not only resulted in immense loss of human life, but it also rampaged across the global economy and socio-cultural structure. Worldwide, countries imposed stringent mass quarantine and lockdowns to curb the transmission of the pathogen. While the efficacy of such lockdown is debatable, several reports suggest that the reduced human activities provided an inadvertent benefit by briefly improving air and water quality. India observed a 68-days long, nation-wide, stringent lockdown between 24 March and 31 May 2020. Here, we delineate the impact of the lockdown on groundwater and river sourced drinking water sustainability in the arsenic polluted Ganges river basin of India, which is regarded as one of the largest and most polluted river basins in the world. Using groundwater arsenic measurements from drinking water wells and water quality data from river monitoring stations, we have studied ~700 km stretches of the middle and lower reaches of the As (arsenic)-polluted parts of the river for pre-lockdown (January–March 2020), syn-lockdown (April–May), and post-lockdown periods (June–July). We provide the extent of As pollution-free groundwater vis-à-vis river water and examine alleviation from lockdown as an opportunity for sustainable drinking water sources. The overall decrease of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) concentrations and increase of pH suggests a general improvement in Ganges water quality during the lockdown in contrast to pre-and-post lockdown periods, potentially caused by reduced effluent. We also demonstrate that land use (agricultural/industrial) and land cover (urban-periurban/rural) in the vicinity of the river reaches seems to have a strong influence on river pollutants. The observations provide a cautious optimistic scenario for potentially developing sustainable drinking water sources in the arsenic-affected Ganges river basin in the future by using these observations as the basis of proper scientifically prudent, spatially adaptive strategies, and technological interventions.

scholarly journals Physicochemical and Microbiological Water Quality Assessment of Aba Waterside River, Aba, Nigeria

2019 ◽  
Vol 3 (1) ◽  
pp. 142-148
Author(s):  
L. O. Bobor ◽  
C. M. Umeh
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Management Strategies ◽  
Oxygen Demand ◽  
Water Quality Monitoring ◽  
Control Measures ◽  
Fecal Coliforms ◽  
Water Quality Control ◽  
Inorganic Substances ◽  
The Impact

The indiscriminate disposal of industrial effluents and solid wastes in surface water bodies is detrimental to humans and aquatic organisms. Water quality monitoring is critical to identify pollutants of concern and develop effective management strategies. Hence, this study was conducted to assess the impact of waste disposal on the water quality of Aba Waterside River, Ogbor hill, Aba. Grab samples were collected upstream, midstream and downstream and some physicochemical and microbiological parameters were analyzed in accordance with standard methods for the analysis of water and wastewater. The results were compared with the Nigerian standard for drinking water quality and the national environmental effluent limitation regulations. Turbidity levels (10 -31mg/l) exceeded the maximum permissible levels for drinking water (5mg/l) and may be associated with higher levels of embedded disease-causing microbes and potentially harmful organic and inorganic substances. The biological oxygen demand midstream (1960mg/l) was remarkably high due to the effluent discharged from the abattoirs at that point. Fecal coliforms (3-198MPN/100ml) were detected in all samples, indicating the presence of other potentially harmful microorganisms. The findings of this study indicate that the water is unsuitable for direct drinking water purposes and stringent water quality control measures should be implemented.

scholarly journals The impact of urban development upon the quality of drinking water sources: Evidence from China

2020 ◽  
Vol 508 ◽  
pp. 012072
Author(s):  
Jing Yang ◽  
Tong-Sheng Chen ◽  
Qiang Sun ◽  
Bao-Yuan Huang ◽  
SI-Jing Ren
Keyword(s):  
Drinking Water ◽  
Urban Development ◽  
Water Sources ◽  
Drinking Water Sources ◽  
The Impact

Quantifying the impact of human activities on water quality based on spatialization of social data: a case study of the Pingzhai Reservoir Basin

2020 ◽  
Vol 20 (2) ◽  
pp. 688-699 ◽  
Author(s):  
Yongrong Zhang ◽  
Zhongfa Zhou ◽  
Haotian Zhang ◽  
Yusheng Dan
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Human Activities ◽  
Water Environment ◽  
Oxygen Demand ◽  
Pollution Source ◽  
Pollution Load ◽  
Social Data ◽  
Reservoir Basin ◽  
The Impact

Abstract In water pollution source research, it is difficult to quantify the impact of human activities on water quality. Based on pollution load theory and the concept of spatialization of social data, this study integrates land-use type, slope gradient, and spatial position, and uses the contribution of human activities to quantify the impact of farmland fertilizers, livestock and poultry wastes, and human domestic pollution on water quality in the study area. The results show that livestock manure is the largest source of total phosphorus (TP) and total nitrogen (TN) discharges in the research area, and domestic pollution is the largest source of chemical oxygen demand (COD) discharges. The total equal standard pollution load (as well as the load of each pollution source and its pollutant amount) is the highest in the Nayong River Basin and the lowest in the Baishui River Basin. The contributions of human activities to TP and TN have similar spatial distributions. The impact of human activities on COD discharge is minimal. The quantitative results of this model are basically consistent with the actual conditions in the Pingzhai Reservoir Basin, which suggests that the model reasonably reflects the impact of human activities on the water environment of the basin.

scholarly journals REGULATORY GUILLOTINE FOR WATER QUALITY AND DRINKING WATER SOURCES

2021 ◽  
Vol 4 (2) ◽  
pp. 155-159
Author(s):  
Olga A. Sakhnova ◽  
Irina I. Bochkareva
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Sources ◽  
Drinking Water Supply ◽  
Drinking Water Sources

The article discusses the reform of the "Regulatory Guillotine", shows the main objectives of this reform. The participants of this process have been identified. The analysis of the cancelled and accepted acts at the present time is given. Changes in regulatory legal acts in the field of water quality and sources of drinking water supply are analyzed.

scholarly journals Domestic drinking water management: Quality assessment in Oforikrom municipality, Ghana

2021 ◽  
Vol 104 (3) ◽  
pp. 003685042110359
Author(s):  
Eugene Appiah-Effah ◽  
Emmanuel Nketiah Ahenkorah ◽  
Godwin Armstrong Duku ◽  
Kwabena Biritwum Nyarko
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Water Quality Management ◽  
Water Sources ◽  
Quality Analysis ◽  
Water Quality Analysis ◽  
Microbial Water Quality ◽  
Drinking Water Sources

Drinking water in Ghana is estimated at 79%, but this only represents the proportion of the population with access to improved drinking water sources without regard to the quality of water consumed. This study investigated the quality of household drinking water sources in the Oforikrom municipality where potable water requirements are on the rise due to an ever-increasing population. Both quantitative and qualitative methods were employed in this study. One Hundred households were randomly selected and interviewed on the available options for drinking water and household water treatment and safe storage. A total of 52 points of collection (POC) and 97 points of use (POU) water samples from households were collected for physicochemical and microbial water quality analysis. Amongst the available drinking water options, sachet water (46%) was mostly consumed by households. Water quality analysis revealed that the physicochemical parameters of all sampled drinking water sources were within the Ghana Standards Authority (GSA) recommended values expected for pH (ranging from 4.50 to 7.50). For the drinking water sources, bottled (100%, n = 2) and sachet water (91%, n = 41) showed relatively good microbial water quality. Generally, POC water samples showed an improved microbial water quality in comparison to POU water samples. About 38% ( n = 8) of the households practicing water quality management, were still exposed to unsafe drinking water sources. Households should practice good water quality management at the domestic level to ensure access to safe drinking water. This may include the use of chlorine-based disinfectants to frequently disinfect boreholes, wells and storage facilities at homes.

scholarly journals Improving endangered antelope habitat through water quality assessment and collaboration with Kenya Wildlife Service

2020 ◽  
Vol 6 (2) ◽  
pp. 118-122
Author(s):  
Tamie Joy Jovanelly
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Assessment ◽  
Animal Health ◽  
Oxygen Demand ◽  
Open Water ◽  
Water Quality Assessment ◽  
Water Sources ◽  
Minimum Criteria ◽  
Physical And Chemical

Background and Aim: A population of endangered sitatunga antelope (Tragelaphus spekii) lives in a free-range environment at Impala Sanctuary in Kisumu, Kenya. Kenya Wildlife Service park officials suspected that increased demands on outdated sewage infrastructure caused animal drinking water sources to become contaminated which resulted in animal sickness and death. In this study, we complete a water quality assessment on open water sources within the park boundaries to determine if water was suitable for animal consumption. Materials and Methods: For the assessment of water, we measure eight physical and chemical parameters (pH, temperature, fecal coliform, dissolved oxygen, biochemical oxygen demand, nitrates, total phosphates, and turbidity). These eight parameters were chosen because they are used to establish a water quality index (WQI) percentage which proved to be useful to communicate conditions to park rangers, stakeholders, and adjacent landowners. Results: Through 6 months of assessments, data collection, and analysis, we determined that most open water sources are severely contaminated, ranking on the WQI from 46% to 58% (bad to medium). In addition, we compared our data to drinking water standards set by the U.S. Department of Agriculture for livestock to find that only two sites met the minimum criteria. The remaining four sites were exponentially contaminated with levels reaching 10× recommended values for animal health. Conclusion: Following these findings, the park was able to attract money for sewage infrastructure rebuilds that resolved the contamination problems. Sickness and death of free-roaming animals, including the antelope, were reduced.

scholarly journals Hydro-geochemical evaluation of groundwater for irrigation in the Ganges river basin areas of Bangladesh

2021 ◽  
Author(s):  
Md Shajedul Islam ◽  
Md. Golam Mostafa
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Irrigation Water ◽  
Anthropogenic Sources ◽  
Total Hardness ◽  
Water Type ◽  
Irrigation Water Quality ◽  
Ganges River ◽  
The Ganges ◽  
Ganges River Basin

Abstract Groundwater is a vital source of irrigation water, and it provides over 80% of the irrigated water supply in Bangladesh. The study aimed to assess the status of irrigation water of the Ganges river basin areas in the middle-west part of Bangladesh through the hydrogeochemical characterization and classification of groundwater. The study parameters were pH, EC, TDS, Ca2+, Mg2+, total hardness, Na+, K+, B, Cl−, HCO3 −, SO 42−, NO3 −, and PO43− along with irrigation water quality index (IWQindex), Na%, soluble sodium percentage, sodium adsorption ratio, residual sodium bicarbonate, magnesium adsorption ratio, permeability index, and Kelley’s ratio. The results showed that most of the water samples were acidic in the pre-monsoon and alkaline in the post-monsoon seasons, and the water type was Ca-HCO3. The significant geochemical process in the area determined was calcite and dolomite mineral dissolution, and there was no active cation exchange, and silicate weathering occurred. The statistical analyses showed that both the geogenic and anthropogenic sources were controlling the chemistry of the groundwater aquifers. Concerning irrigation water quality, the results revealed that all the quality parameters and IWQindex (32.04 to 45.39) were within the safety ranges, except for the EC and total hardness. The study results would be useful for future groundwater monitoring and management of the Ganges basin areas of Bangladesh part.

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