Assessment of Bangladesh groundwater for drinking and irrigation using weighted overlay analysis

Iqbal, Afrida Binth; Rahman, Mohammad Moshiur; Mondal, D. R.; Khandaker, Nadim Reza; Khan, Haniyum Maria; Ahsan, Gias U.; Jakariya, Md.; Hossain, Md. Mainul

doi:10.1016/j.gsd.2019.100312

Cited by 21 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The commonly used methods to calculate the WQI include the comprehensive index method [23,30,32], entropy weight method [28], fuzzy evaluation method [26], weighted superposition analytical method [27], and an artificial neural network [34]. In this study, we selected a WQI calculation method including "punitive terms" for items exceeding the standards, which is suitable to reflect the quantity and extent of standard exceedances for various drinking water quality parameters [32] (for the calculation basis and detailed process see the Supplementary Materials).…”

Section: The Wqi and Classificationmentioning

confidence: 99%

“…This score can indicate water quality issues or the suitability of water use [21,22]. In recent years, due to its intuitive and dimensionless characteristics, the WQI has been used by researchers to evaluate the quality of surface water and groundwater [23][24][25][26][27][28][29][30][31]. However, the WQI has not been used to evaluate domestic water treatment systems in small centralized or decentralized water supply systems.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Evaluating the Efficacy of Point-of-Use Water Treatment Systems Using the Water Quality Index in Rural Southwest China

Zhang

et al. 2020

Water

View full text Add to dashboard Cite

Rural China faces a shortage of safe drinking water. There are significant challenges associated with small centralized water supply systems and decentralized water supply systems. Many rural residents use point-of-use water treatment systems to ensure the safety of their drinking water. The actual water purification effect and applicability of these water treatment systems in small centralized and decentralized water supply systems need to be determined urgently. In this study, the water quality index (WQI) method was applied for the first time in rural areas to evaluate the effectiveness of point-of-use water treatment systems. A total of 67 reverse osmosis water treatment systems were tested. The rate of compliance with drinking water standards of the decentralized water supply was low (37%). Compared with untreated water, the use of a reverse osmosis water treatment system improved the rate of compliance with drinking water standards, but this effect was not satisfactory (8%). Among the factors potentially affecting the purified water quality of point-of-use water treatment systems (e.g., service time of the water treatment system, service time of the filter element, and type of water source), the service time of the filter element had the most significant influence on the water quality. If the filter element had not been replaced for a long period, the removal effect of the water treatment system on the total hardness, sulfide, copper, and ammonia nitrogen was significantly affected, reducing the quality of the purified water. To ensure the safety of drinking water, it is recommended to replace the filter element of a reverse osmosis water treatment system at least once a year.

show abstract

Section: The Wqi and Classificationmentioning

confidence: 99%

mentioning

confidence: 99%

Evaluating the Efficacy of Point-of-Use Water Treatment Systems Using the Water Quality Index in Rural Southwest China

Zhang

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…Groundwater contamination has been documented in 59 districts of Bangladesh out of 64 districts having As concentration greater than 10 µg L −1 , the World Health Organization's (WHO) interim recommendation threshold for As [4]. Iqbal et al [5] studied Bangladeshi groundwater quality and discovered that most deep tube wells had higher water quality than shallow tube wells due to lower amounts of pollutants, particularly As in deep tube wells compared to shallow tube wells. Drinking As contaminated groundwater and using groundwater for irrigation exposes Bangladeshis to As toxicity [6].…”

Section: Introductionmentioning

confidence: 99%

Translocation of Soil Arsenic towards Accumulation in Rice: Magnitude of Water Management to Minimize Health Risk

Jahan

Abedin

Islam

et al. 2021

Water

View full text Add to dashboard Cite

Globally, the risk of arsenic (As) contamination in soil and rice is well documented across the globe. In Bangladesh, drinking water and rice are two major exposure pathways of As to humans. Therefore, the efficiency of recent technologies to reduce rice As and associated human health risks still need to be deeply investigated. In this direction, a pot experiment was performed to investigate the impact of soil As and agronomic irrigation management on rice (cv. BRRI dhan28) growth, yield, As accumulation, and finally, health risks to humans from consuming rice. Treatment combinations were made with three levels of As (0, 20, and 40 mg kg−1) having two irrigation procedures, including alternate wetting and drying (AWD) and traditional continuous flooding (CF). According to the findings, As pollution in the soil lowered the yield contributing features and rice yield, including panicle length, filled grains per panicle, sterile grains per panicle, 1000-grain weight, grain yield, and straw yield. AWD water management significantly improved the growth performance and productivity of rice. Grain yield was increased by 13% in AWD compared to CF. Rice grain and straw As concentrations were increased to 0.56 mg kg−1 and 15.10 mg kg−1, respectively, in soil with 40 mg kg−1 As and CF water management. AWD treatment significantly reduced grain and straw As contents by 16% and 28%, respectively. Increased grain, straw, and total As uptake was noticed with higher soil As concentrations. The study also found that rising soil As raised non-carcinogenic risks (HQ > 1) and carcinogenic risks (CR > 1.010–4) while AWD lowered health risks compared to CF. Thus, rice farming using AWD irrigation could be a viable and long-term solution for reducing As contamination in rice and associated human health hazards.

show abstract

“…Two of the identified studies were focused on WQI for surface water while two other studies focused on WQI for groundwater. Iqbal et al (2020) studied and assigned WQI for groundwater quality evaluation in Bangladesh. Assignment of WQI to evaluate groundwater quality in Tala Upazila in the Sathkhira district covering a smaller geographical area has also been reported (Saha et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Water Quality Index (WQI) for Evaluation of the Surface Water Quality of Bangladesh and Prediction of WQI from Limited Parameters

Mallick¹,

Hossain²,

Ayshi³

et al. 2021

Preprint

View full text Add to dashboard Cite

Healthy aquatic environment is crucial for preserving aquatic lives in surface waters. Increasing industrial or agricultural discharge or run-off can pollute water leading to unhealthy aquatic environment causing distress in fishes and other aquatic lives. In places with lack of infrastructure and regulatory enforcement, pollution can be particularly challenging to handle. Assignment of an indexing system can be helpful for analyzing pollution pattern in the polluted rivers which can be helpful for remediation purposes and prevention of future pollution. Bangladesh currently does not have any indexing system in place. Assignment of indices in the rivers of Bangladesh can be helpful for remediation of the rivers on a preferential basis as remediation of all the rivers at once will pose challenges with funding and infrastructural allocation. Parameters monitored in the water monitoring stations of ten rivers were extracted from the reports published by the Department of Environment (DOE) of Bangladesh. A water quality index (WQI) was assigned on the rivers across seven years of time period to identify the most polluted rivers. The degree of pollution in the river was in the order of Mayuri > Buriganga > Korotoa > Turag > Shitalakhya > Surma > Halda > Dhaleshwari > Mathavanga > Brahmaputra based on the WQI analysis. Among the ten rivers, only Mathavanga and Brahmaputra were in good condition. The most polluted rivers were located in areas with manufacturing, textile etc. industries. Hence, monitoring of industrial discharge intro the rivers and regulatory enforcement is crucial for the prevention of pollution in rivers. In addition to regulatory enforcement, adoption of remediation plans and implementation of them is also essential for remediation of the polluted rivers.

show abstract

Assessment of Bangladesh groundwater for drinking and irrigation using weighted overlay analysis

Cited by 21 publications

References 25 publications

Evaluating the Efficacy of Point-of-Use Water Treatment Systems Using the Water Quality Index in Rural Southwest China

Evaluating the Efficacy of Point-of-Use Water Treatment Systems Using the Water Quality Index in Rural Southwest China

Translocation of Soil Arsenic towards Accumulation in Rice: Magnitude of Water Management to Minimize Health Risk

Water Quality Index (WQI) for Evaluation of the Surface Water Quality of Bangladesh and Prediction of WQI from Limited Parameters

Contact Info

Product

Resources

About