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Articoli di riviste sul tema "Groundwater Pollution Bangladesh"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 gennaio 2023

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1

Ganguli, Sumon, Md Akter Hosen Rifat, Dipta Das, Shahidul Islam e Md Nazrul Islam. "Groundwater Pollution in Bangladesh: A Review". Grassroots Journal of Natural Resources 04, n. 04 (31 dicembre 2021): 115–45. http://dx.doi.org/10.33002/nr2581.6853.040409.

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Bangladesh relies mainly on groundwater for irrigation and drinking purposes. Groundwater, however, continuously polluted, is a major obstacle. Nowadays, Bangladesh is moving towards industrial revolution in a considerable speed. As part of this paper's attempt to analyze the groundwater pollution scenario in Bangladesh, specifically in the past two decades, about 100 articles, conference papers, and reports published in national and international journals and books were reviewed, as well as issues concerning pollution sources, health impact assessment, and future perspectives were discussed. The groundwater is contaminated by different contaminants, such as physico-chemicals, trace metals, and microbes. Human health is at great risk from arsenic (As) contamination; it is one of the biggest threats. The cancer risk and non-cancer risk of ingesting water are increased. On the other hand, a large number of peoples were affected due to waterborne diseases governed by microbial contamination. Geophysical and anthropogenic sources, the depth of wells, and geographical factors may influence groundwater pollution. It is recommended that policy makers should address the issue immediately and precautions should be taken wherever necessary.

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2

Tanabe, Kimiko, Hiroshi Yokota, Hiromi Hironaka, Sachie Tsushima e Yoshihiro Kubota. "Arsenic pollution of groundwater in Bangladesh". Applied Organometallic Chemistry 15, n. 4 (2001): 241–51. http://dx.doi.org/10.1002/aoc.134.

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3

Rahman, M. Hamidur, e Hiroaki Ishiga. "ARSENIC POLLUTION IN SOIL AND GROUNDWATER OF BANGLADESH". Journal of Water and Environment Technology 1, n. 1 (2003): 125–31. http://dx.doi.org/10.2965/jwet.2003.125.

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4

Kutub, Juel Rana. "Groundwater depletion scenario in the north-eastern and south eastern part of Bangladesh". Journal of Nepal Geological Society 49, n. 1 (31 dicembre 2015): 57–63. http://dx.doi.org/10.3126/jngs.v49i1.23142.

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Groundwater is one of the most important freshwater sources in Bangladesh which is used for drinking, household chores and irrigation. Due to high population pressure and excessive withdrawal, this important resource is under a lot of pressure. This study is designed to assess the present groundwater condition of the entire eastern region of Bangladesh. Groundwater depth data of 271 wells from 21 districts were collected from Bangladesh Water Development Board (BWDB) and analyzed in ArcGIS and Microsoft Excel software. During the pre-monsoon period, the groundwater lies beneath 2 to 14 meters of sediment. In the dry season, the groundwater remains between 4 and 12 meters in the northeastern part of Bangladesh. The larger values are mostly associated with urban areas. In case of southeastern part, groundwater level ranges from 2 to 8 meters. But the urbanized areas have groundwater levels in ranges in between 6 and 12. Compared to northern part, groundwater is found closer to surface in the southern part of the study area, Comilla, Mymensingh and Kishorganj. During monsoon season, there is a wide disparity of groundwater condition in the northeastern part, but southeaster part shows homogeneity. So, significant variation in groundwater depth (seasonal as well as spatial) is seen throughout the study area. The impact of urbanization is seen clearly which leads to lowering of groundwater level that can cause catastrophic events like earthquake, subsidence and pollution.

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5

YOKOTA, H., K. TANABE, M. SEZAKI, S. KUDO, K. SUENAGA, F. AHMED e H. RAHMAN. "MECHANISM OF ARSENIC POLLUTION OF GROUNDWATER AND COUNTERMEASURES FOR THE POLLUTION IN BANGLADESH". Proceedings of the Symposium on Global Environment 8 (2000): 51–56. http://dx.doi.org/10.2208/proge.8.51.

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6

HABIB, M. A., S. MIONO, K. SERA e S. FUTATSUGAWA. "PIXE ANALYSIS OF HAIR IN ARSENIC POLLUTION, BANGLADESH". International Journal of PIXE 12, n. 01n02 (gennaio 2002): 19–34. http://dx.doi.org/10.1142/s0129083502000044.

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The groundwater pollution by arsenic in Bangladesh causes a serious problem for millions of people who are exposed to poisoning by this toxic element. In an attempt to evaluate the extent of arsenic poisoning, hair samples of people living in Pabna district were collected. The hair samples were analyzed using Proton Induced X-ray Emission (PIXE) through exciting the atoms of a specimen so that their intensities can be converted into elemental concentrations in the specimen. The elements present in the specimen are identified by the corresponding X-ray energies and their concentrations are deduced from the X-ray intensities. The results from hair samples indicate substantially higher level of arsenic than those demarcated as toxic levels, in people from member families both affected and non-affected by poisoning. We correlate it with exceedingly high arsenic concentration in drinking water far above the permissible limit. The analytical results are compared with the results of arsenic and other elemental analysis of 160 Bangladeshi hair samples with that of 250 Japanese samples. The results show markedly higher levels of arsenic, manganese, iron and lead where the latter three elements show a positive relation with arsenic in the case of Bangladeshi as compared to the samples from Japan. On the other hand, selenium concentrations show very low level in the Bangladeshi samples compared to Japanese, displaying an inverse relationship with arsenic. The mechanism of arsenic in relation to other elements in the human body needs further investigation. The preliminary results call for detailed experimental and epidemiological studies to further characterize these aspects.

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7

Hossain, Laila, e Mohidus Samad Khan. "Water Footprint Management for Sustainable Growth in the Bangladesh Apparel Sector". Water 12, n. 10 (4 ottobre 2020): 2760. http://dx.doi.org/10.3390/w12102760.

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Bangladesh is one of the fastest growing economies in the world, primarily driven by its textile industries. A high amount of water is consumed and polluted in the production and processing of raw material to the final product in the textile industry. Therefore, water footprint assessment is important for textile products. In this study, the water footprint of cotton cultivation, transportation and textile industry was calculated by analyzing the amount of imported cotton, production and processing capacity of cotton yarn and cotton fabrics, wastewater volume, number of workers and pollution load database, for 2012–2016. For the textile industry, the annual water footprint was found to be 1.8 billion m3. This high amount of water footprint and water pollution may result in depletion of groundwater level and can lead to major health problems for the local people, respectively. Total water footprint for ready-made garment product is found to be 27.56 billion m3, whereas considering proper water treatment and water reuse facilities can reduce the grey water footprint to around 1.26 billion m3. This study shows the extent of water pollution, groundwater depletion and economic impact of groundwater extraction, and possible means to reduce water footprint in cotton cultivation and textile industries.

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8

McArthur, J. M., P. Ravenscroft, S. Safiulla e M. F. Thirlwall. "Arsenic in groundwater: Testing pollution mechanisms for sedimentary aquifers in Bangladesh". Water Resources Research 37, n. 1 (gennaio 2001): 109–17. http://dx.doi.org/10.1029/2000wr900270.

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9

Sarker, Md Mizanur Rahman, Thomas Hermans, Marc Van Camp, Delwar Hossain, Mazeda Islam, Nasir Ahmed, Md Abdul Quaiyum Bhuiyan, Md Masud Karim e Kristine Walraevens. "Identifying the Major Hydrogeochemical Factors Governing Groundwater Chemistry in the Coastal Aquifers of Southwest Bangladesh Using Statistical Analysis". Hydrology 9, n. 2 (1 febbraio 2022): 20. http://dx.doi.org/10.3390/hydrology9020020.

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People in the southwestern (SW) coastal part of Bangladesh are suffering from a severe freshwater crisis due to saline groundwater at a shallow depth. Fresh groundwater below a 200 m depth is an option, but it is costly to construct deep tubewells for the local inhabitants. The processes of salinization and freshening were previously identified using conventional methods. In this study, we brought new insight into these processes by analyzing existing datasets using multivariate statistics to identify the factors affecting groundwater chemistry. Cluster analysis (CA) revealed three major clusters. Cluster A corresponded to saline (NaCl-type) water. Cluster B was also saline (NaCl-type) water but showed mixing effects. Cluster C was fresh groundwater (NaHCO3-type) and isolated. The hydrochemical characteristics of clusters A, B and C compared remarkably well with the groundwaters from the upper shallow aquifer (USA), lower shallow aquifer (LSA) and deep aquifer (DA), respectively. Factor analysis (FA) showed that 75% of the total variance was influenced by evaporate dissolution, carbonate dissolution/precipitation, cation exchange and anthropogenic pollution to some extent. Therefore, the integrated approach showed the validity of applying multivariate statistical techniques to infer the dominant hydrochemistry and to characterize and understand a complicated hydrogeological system.

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10

Zheng, Y., M. Stute, A. van Geen, I. Gavrieli, R. Dhar, H. J. Simpson, P. Schlosser e K. M. Ahmed. "Redox control of arsenic mobilization in Bangladesh groundwater". Applied Geochemistry 19, n. 2 (febbraio 2004): 201–14. http://dx.doi.org/10.1016/j.apgeochem.2003.09.007.

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11

Sarker, Bijoyee, Kamrun N. Keya, Fatin I. Mahir, Khandakar M. Nahiun, Shahirin Shahida e Ruhul A. Khan. "Surface and Ground Water Pollution: Causes and Effects of Urbanization and Industrialization in South Asia". Scientific Review, n. 73 (8 luglio 2021): 32–41. http://dx.doi.org/10.32861/sr.73.32.41.

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Water pollution in South Asia is an alarming issue that has immersed recently. Developing countries, particularly those in South Asia, are fast adopting industrial pollution control standards similar to those in developed countries. So both surface and groundwater are already scarce however, individuals and industries continue to pollute the already limited supply of water. On the other hand, the pollution of rivers is more severe and critical near urban stretches due to huge amounts of pollution load discharged by urban activities. Unplanned urbanization and industrialization occurring in these countries like Bangladesh, India, Nepal and Sri Lanka, etc. may be largely responsible for this grave situation. Therefore these human activities including industrialization and urbanization contributed immensely in no small measure to the degradation and pollution of the environment which adversely has an effect on the water resources such as surface and groundwater that is a necessity for life. This paper tries to discuss basically the causes and effects of urbanization and industrialization in surface and groundwater pollution and equally to address the controlling issues and challenges in South Asia.

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12

Shamsudduha, Mohammad, George Joseph, Sabrina S. Haque, Mahfuzur R. Khan, Anwar Zahid e Kazi Matin U. Ahmed. "Multi-hazard Groundwater Risks to Water Supply from Shallow Depths: Challenges to Achieving the Sustainable Development Goals in Bangladesh". Exposure and Health 12, n. 4 (15 ottobre 2019): 657–70. http://dx.doi.org/10.1007/s12403-019-00325-9.

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AbstractGroundwater currently provides 98% of all drinking-water supply in Bangladesh. Groundwater is found throughout Bangladesh but its quality (i.e., arsenic and salinity contamination) and quantity (i.e., water-storage depletion) vary across hydrological environments, posing unique challenges to certain geographical areas and population groups. Yet, no national-scale, multi-parameter groundwater hazard maps currently exist enabling water resources managers and policy makers to identify vulnerable areas to public health. We develop, for the first time, groundwater multi-hazard maps at the national scale of Bangladesh combining information on arsenic, salinity, and water storage. We apply geospatial techniques in ‘R’ programming language and ArcGIS environment, linking hydrological indicators for water quality and quantity to construct risk maps. A range of socioeconomic variables including access to drinking and irrigation water supplies and social vulnerability (i.e., poverty) are overlaid on these risk maps to estimate exposures. Our multi-parameter groundwater hazard maps show that a considerable proportion of land area (5–24% under extremely high to high risks) in Bangladesh is currently under combined risk of arsenic and salinity contamination, and groundwater-storage depletion. As small as 6.5 million (2.2 million poor) to 24.4 million (8.6 million poor) people are exposed to a combined risk of high arsenic, salinity, and groundwater-storage depletion. Our groundwater hazard maps reveal areas and exposure of population groups to water risks posed by arsenic and salinity contamination and depletion of water storage. These geospatial hazard maps can potentially guide policy makers in prioritizing mitigation and adaptation measures in order to achieve the United Nation’s Sustainable Development Goals across the water, agriculture, and public health sectors in Bangladesh.

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13

Mamun, Abdullah Al, Koushik Kumar Bormon, Mst Nigar Sultana Rasu, Amit Talukder, Charles Freeman, Reuben Burch e Harish Chander. "An Assessment of Energy and Groundwater Consumption of Textile Dyeing Mills in Bangladesh and Minimization of Environmental Impacts via Long-Term Key Performance Indicators (KPI) Baseline". Textiles 2, n. 4 (28 settembre 2022): 511–23. http://dx.doi.org/10.3390/textiles2040029.

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Bangladesh’s ready-made garment sectors have evolved to increase market share in the global textile supply chain. Textile sectors heavily rely on energy and groundwater consumption during production; mainly, textile dyeing mills contribute to the carbon footprint and water footprint impact to the environment. Textile dyeing mills have become one of the major industries responsible for the continuous depletion of groundwater levels and severe water pollution to the environment. Reduction of long-term key performance indicators (KPI) can be set to a baseline by reducing energy and groundwater consumption in textile dyeing mills. This study has analyzed the energy and groundwater consumption trend based on 15 textile dyeing mills in Bangladesh in 2019. The average dyed fabric production of 15 textile dyeing mills in 2019 was 7602.88 tons by consuming electricity and groundwater, and discharging treated effluent wastewater to the environment, in the amounts of 17,689.43 MWh, 961.26 million liters, and 640.24 million liters, respectively. The average KPI of treated effluent discharged wastewater was 97.27 L/kg, and energy consumption was 2.58 kWh/kg. Considering yearly 5% reduction strategies of groundwater and energy consumption for each factory could save around 355.43 million liters of water and 6540.68 MWh of electricity in 10 years (equivalent to 4167.08-ton CO2 emission).

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14

Shajedul, M. S. "Status of Groundwater Aquifers, Water Quality, Sources of Contamination, and Future Challenges in Bangladesh: A Comprehensive Review". Journal of Applied Sciences and Environmental Management 26, n. 8 (31 agosto 2022): 1327–42. http://dx.doi.org/10.4314/jasem.v26i8.3.

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The groundwater resource of Bangladesh is under increasing threat from population growth, over-water mining, quick urbanization, and pollution from industrial events with domestic and agricultural activities. The objective of this paper is to review over a hundred well-recognized national and international journals, conference proceedings, reports, and other related documents on the status of groundwater aquifers, water quality, sources of contamination, and future challenges in Bangladesh to develop sustainable groundwater resource management. The study observed that groundwater in several zones in the country has been contaminated with elevated levels of dissolved elements. Temporary hardness in countrywide groundwater was found in higher ranges for all purposes while except for bicarbonate, all anions did not cross the guideline value. Among the metal contaminants, arsenic found in the shallow aquifer at an alarming level throughout the country threatened public health, and millions of consumers are suffering from severe and chronic poisoning from arsenic riches water. Additionally, climate change and sea-level rise are likely with increasing salinity and various nutrient concentrations in the coastal aquifer systems of the country, and that water is not fit for domestic and agricultural uses.

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15

Islam, M., Md Karim, Xin Zheng e Xiaofang Li. "Heavy Metal and Metalloid Pollution of Soil, Water and Foods in Bangladesh: A Critical Review". International Journal of Environmental Research and Public Health 15, n. 12 (11 dicembre 2018): 2825. http://dx.doi.org/10.3390/ijerph15122825.

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Bangladesh is a densely populated developing country. Both industrialization and geological sources have caused widespread heavy metal and metalloid pollution in Bangladesh, which is now posing substantial threats to the local people. In this review, we carried out one of the most exhaustive literature analyses on the current status of Bangladesh heavy metal and metalloid pollution, covering water, soil, and foods. Analysis showed that soils near high traffic and industrial areas contain high concentrations of heavy metals and metalloids. Agricultural land and vegetables in sewage-irrigated areas were also found to be heavy metal- and metalloid-contaminated. River water, sediment, and fish from the Buriganga, Turag, Shitalakhya, and Karnaphuli rivers are highly contaminated with cadmium (Cd), lead (Pb), and chromium (Cr). Particularly, groundwater arsenic (As) pollution associated with high geological background levels in Bangladesh is well reported and is hitherto the largest mass poisoning in the world. Overall, the contamination levels of heavy metals and metalloids vary among the cities, with industrial areas being most polluted. In all, this review provides a quantitative identification of the As, Pb, Cd, and Cr contamination hotspots in Bangladesh based on the literature, which may be useful to environmental restorationists and local policy makers.

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16

MASUDA, HARUE, KEIJI SHINODA, TAKAMOTO OKUDAIRA, YOSHIO TAKAHASHI e NAOKI NOGUCHI. "Chlorite^|^mdash;source of arsenic groundwater pollution in the Holocene aquifer of Bangladesh". GEOCHEMICAL JOURNAL 46, n. 5 (2012): 381–91. http://dx.doi.org/10.2343/geochemj.2.0208.

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17

Arefin, Md Arman, e Avijit Mallik. "Sources and causes of water pollution in Bangladesh: A technical overview". BIBECHANA 15 (19 dicembre 2017): 97–112. http://dx.doi.org/10.3126/bibechana.v15i0.18688.

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Water pollution is one of the significant dangers to general wellbeing in Bangladesh. Drinking water quality is inadequately overseen and checked. Bangladesh positions at number 86 among 142 countries with respect to drinking water quality. Drinking water sources, both surface and groundwater are debased with coliforms, harmful metals and pesticides all through the nation. Different drinking water quality parameters set by WHO are every now and again damaged. Human exercises like uncalled for transfer of civil and mechanical effluents and aimless utilizations of agrochemicals in agribusiness are the principle factors adding to the crumbling of water quality. Microbial and substance contaminations are the primary elements mindful solely or in mix for different general medical issues. This paper presents a detailed layout of water quality in Bangladesh with unique accentuation on significant poisons, sources and causes of pollution. The information introduced in this paper are extracted from different surveys and reports distributed in national and global journals. Likewise reports discharged by the government and NGO associations are incorporated.BIBECHANA 15 (2018) 97-112

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18

Uddin, Saif Mohammad, Mariska Ronteltap e Jules B. van Lier. "Assessment of urine diverting dehydrating toilets as a flood-resilient and affordable sanitation technology in the context of Bangladesh". Journal of Water, Sanitation and Hygiene for Development 3, n. 2 (1 giugno 2013): 87–95. http://dx.doi.org/10.2166/washdev.2013.113.

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Bangladesh has made a significant contribution to supply improved sanitation facilities in rural areas in recent years. As it is the most known option, pit latrines were the most favourable technology. Yet, as Bangladesh is a country of flooding and high groundwater table, pit latrines not only flush out and cause pollution; they also become inaccessible during floods, and remain filled with silt after the floods. Every year floods destroy many sanitation facilities and force people to resort to open defecation, despite the capital-intensive investment. Urine Diversion Dehydration Toilets (UDDTs) were evaluated on their suitability in flood-prone areas and their affordability in the context of Bangladesh. A survey conducted in two flood-prone areas of Bangladesh showed that with an average height of 0.69 m the UDDTs are higher than the average highest flood level of 0.31 m. To decrease cost and construction complexity, a local design was developed based on the current pit latrine, at 50% of the costs of the current UDDTs. Although the resulting cost is still not within reach for most Bangladeshi, the affordability could be increased by taking into account avoided emptying costs as well as the added value of human excreta as a fertilizer.

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Mustafa, Syed M. Touhidul, M. Moudud Hasan, Ajoy Kumar Saha, Rahena Parvin Rannu, Els Van Uytven, Patrick Willems e Marijke Huysmans. "Multi-model approach to quantify groundwater-level prediction uncertainty using an ensemble of global climate models and multiple abstraction scenarios". Hydrology and Earth System Sciences 23, n. 5 (13 maggio 2019): 2279–303. http://dx.doi.org/10.5194/hess-23-2279-2019.

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Abstract. Worldwide, groundwater resources are under a constant threat of overexploitation and pollution due to anthropogenic and climatic pressures. For sustainable management and policy making a reliable prediction of groundwater levels for different future scenarios is necessary. Uncertainties are present in these groundwater-level predictions and originate from greenhouse gas scenarios, climate models, conceptual hydro(geo)logical models (CHMs) and groundwater abstraction scenarios. The aim of this study is to quantify the individual uncertainty contributions using an ensemble of 2 greenhouse gas scenarios (representative concentration pathways 4.5 and 8.5), 22 global climate models, 15 alternative CHMs and 5 groundwater abstraction scenarios. This multi-model ensemble approach was applied to a drought-prone study area in Bangladesh. Findings of this study, firstly, point to the strong dependence of the groundwater levels on the CHMs considered. All groundwater abstraction scenarios showed a significant decrease in groundwater levels. If the current groundwater abstraction trend continues, the groundwater level is predicted to decline about 5 to 6 times faster for the future period 2026–2047 compared to the baseline period (1985–2006). Even with a 30 % lower groundwater abstraction rate, the mean monthly groundwater level would decrease by up to 14 m in the southwestern part of the study area. The groundwater abstraction in the northwestern part of Bangladesh has to decrease by 60 % of the current abstraction to ensure sustainable use of groundwater. Finally, the difference in abstraction scenarios was identified as the dominant uncertainty source. CHM uncertainty contributed about 23 % of total uncertainty. The alternative CHM uncertainty contribution is higher than the recharge scenario uncertainty contribution, including the greenhouse gas scenario and climate model uncertainty contributions. It is recommended that future groundwater-level prediction studies should use multi-model and multiple climate and abstraction scenarios.

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Ahmed, Mohammad Tofayal, Md Naim Islam, Md Yeasir Hasan, Minhaj Uddin Monir, Abu Shamim Khan e Md Mizanur Rahman. "Monitoring of Groundwater Quality in Arsenic and Salinity Prone Areas of Jashore, Bangladesh". International Journal of Economic and Environmental Geology 11, n. 1 (7 luglio 2020): 83–88. http://dx.doi.org/10.46660/ijeeg.vol11.iss1.2020.417.

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The groundwater contamination by arsenic is a large-scale pollution in drinking water history. Safe water supply is a big challenge due to critical hydrogeological situation and water quality problems in this area. The analytical results show that a range of pH, TDS, chloride, total alkalinity, total hardness, sodium, potassium, calcium, magnesium, manganese, iron and arsenic were found between 7.50-7.23, 504.00-201.00 mg/L, 90.30-31.43 mg/L, 410.81-174.31mg/L, 616.47-202.97 mg/L, 52.59-13.28 mg/L, 17.13-2.87 mg/L, 108.57-44.53 mg/L, 83.87-22.29 mg/L, 1.78-0.01 mg/L, 11.78-1.45 mg/L, 0.42-0.02 mg/L, respectively. This study will help making a future plan for groundwater quality monitoring and its hydrogeological application for safe water source identification

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Ahmed, Mohammad Tofayal, Md Naim Islam, Md Yeasir Hasan, Minhaj Uddin Monir, Abu Shamim Khan e Md Mizanur Rahman. "Monitoring of Groundwater Quality in Arsenic and Salinity Prone Areas of Jashore, Bangladesh". International Journal of Economic and Environmental Geology 11, n. 1 (7 luglio 2020): 83–88. http://dx.doi.org/10.46660/ojs.v11i1.417.

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Abstract (sommario):

The groundwater contamination by arsenic is a large-scale pollution in drinking water history. Safe water supply is a big challenge due to critical hydrogeological situation and water quality problems in this area. The analytical results show that a range of pH, TDS, chloride, total alkalinity, total hardness, sodium, potassium, calcium, magnesium, manganese, iron and arsenic were found between 7.50-7.23, 504.00-201.00 mg/L, 90.30-31.43 mg/L, 410.81-174.31mg/L, 616.47-202.97 mg/L, 52.59-13.28 mg/L, 17.13-2.87 mg/L, 108.57-44.53 mg/L, 83.87-22.29 mg/L, 1.78-0.01 mg/L, 11.78-1.45 mg/L, 0.42-0.02 mg/L, respectively. This study will help making a future plan for groundwater quality monitoring and its hydrogeological application for safe water source identification

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Akai, Junji, Kaoru Izumi, Haruo Fukuhara, Harue Masuda, Satoshi Nakano, Takahisa Yoshimura, Hiroaki Ohfuji, Hossain Md Anawar e Kurumi Akai. "Mineralogical and geomicrobiological investigations on groundwater arsenic enrichment in Bangladesh". Applied Geochemistry 19, n. 2 (febbraio 2004): 215–30. http://dx.doi.org/10.1016/j.apgeochem.2003.09.008.

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TANABE, Kimiko, Yasunori YANO, Minenari HIROKI, Kazuhiro HAMABE, Kazuhiro YABUUCHI, Hiroshi YOKOTA, Hiromi HIRONAKA, Hiroshi TOKUNAGA, M. Hamidur RAHMAN e M. Feroze AHMED. "Arsenic Pollution of Groundwater in Bangladesh-Characteristic of Arsenic Concentration and Mechanism of Arsenic Elution to Groundwater in Samta." Journal of Japan Society on Water Environment 24, n. 6 (2001): 367–75. http://dx.doi.org/10.2965/jswe.24.367.

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YOKOTA, Hiroshi, Mitsuhiro SEZAKI, Kimiko TANABE, Tatsuo MIYATA, Minenari HIROKI, Asia Arsenic Network(AAN) e Research Group for Applied Geology(. "Arsenic pollution of groundwater and water supply by purification of pond water in Bangladesh". Proceedings of the Symposium on Global Environment 7 (1999): 165–70. http://dx.doi.org/10.2208/proge.7.165.

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Hoque, M. A., W. G. Burgess, M. Shamsudduha e K. M. Ahmed. "Delineating low-arsenic groundwater environments in the Bengal Aquifer System, Bangladesh". Applied Geochemistry 26, n. 4 (aprile 2011): 614–23. http://dx.doi.org/10.1016/j.apgeochem.2011.01.018.

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Bhattacharya, P., G. Jacks, K. M. Ahmed, J. Routh e A. A. Khan. "Arsenic in Groundwater of the Bengal Delta Plain Aquifers in Bangladesh". Bulletin of Environmental Contamination and Toxicology 69, n. 4 (1 ottobre 2002): 538–45. http://dx.doi.org/10.1007/s00128-002-0095-5.

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Sarker, Md Mizanur Rahman, Marc Van Camp, Delwar Hossain, Mazeda Islam, Nasir Ahmed, Md Masud Karim, Md Abdul Quaiyum Bhuiyan e Kristine Walraevens. "Groundwater salinization and freshening processes in coastal aquifers from southwest Bangladesh". Science of The Total Environment 779 (luglio 2021): 146339. http://dx.doi.org/10.1016/j.scitotenv.2021.146339.

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Zaman Shakil, Md Shakilur, e M. G. Mostafa. "Water Quality Assessment of Paper Mills Effluent Discharge Areas". Al-Nahrain Journal of Science 24, n. 3 (1 settembre 2021): 63–72. http://dx.doi.org/10.22401/anjs.24.3.10.

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The study attempted to assess the water quality around paper mill effluents discharge areas. Several physicochemical parameters and the Canadian Council of Ministers of the Environment (CCME) Water Quality Index (WQI) were considered to determine the pollution level of surface and groundwater in the selected paper mills areas located in Saidpur, Gobindaganj, and Dupchanchia Upazilas of Bangladesh. Physicochemical characterization of the surface water around the paper mills areas showed that the concentration of EC, TSS, BOD5, COD, phenols, NO3−-N, and K+were exceeded the surface water standard, whereas the DO level ranged from 1.63 to 3.5 were found below the Environmental Conservation Rules (ECR), 1997 standard. Besides, the BOD, COD, and Mn ion concentrations of groundwater exceeded the drinking water standard. In most sampling sites, the WQI of the surface water showed ‘marginal’ category, and the groundwater quality showed 'fair' category. The study observed that the toxic effluents discharged from the paper mills caused harm to the aquatic ecosystem.

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29

Tareq, Shafi M., S. Safiullah, H. M. Anawar, M. Majibur Rahman e T. Ishizuka. "Arsenic pollution in groundwater: a self-organizing complex geochemical process in the deltaic sedimentary environment, Bangladesh". Science of The Total Environment 313, n. 1-3 (settembre 2003): 213–26. http://dx.doi.org/10.1016/s0048-9697(03)00266-3.

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30

Bodrud-Doza, Md, S. M. Didar-Ul Islam, Md Tareq Hasan, Ferdous Alam, Md Morshedul Haque, M. A. Rakib, Md Ashadudzaman Asad e Md Abdur Rahman. "Groundwater pollution by trace metals and human health risk assessment in central west part of Bangladesh". Groundwater for Sustainable Development 9 (ottobre 2019): 100219. http://dx.doi.org/10.1016/j.gsd.2019.100219.

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31

Alam, M. G. M., G. Allinson, F. Stagnitti, A. Tanaka e M. Westbrooke. "Arsenic contamination in Bangladesh groundwater: A major environmental and social disaster". International Journal of Environmental Health Research 12, n. 3 (settembre 2002): 235–53. http://dx.doi.org/10.1080/0960312021000000998.

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32

Hasan, Asma Binta, Sohail Kabir, A. H. M. Selim Reza, Mohammad Nazim Zaman, Mohammad Aminul Ahsan, Mohammad Ahedul Akbor e Mohammad Mamunur Rashid. "Trace metals pollution in seawater and groundwater in the ship breaking area of Sitakund Upazilla, Chittagong, Bangladesh". Marine Pollution Bulletin 71, n. 1-2 (giugno 2013): 317–24. http://dx.doi.org/10.1016/j.marpolbul.2013.01.028.

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33

Khan, Abidur, Nils Michelsen, Andres Marandi, Rabby Hossain, Mohammed Abed Hossain, Karl Ernst Roehl, Anwar Zahid, Muhammad Qumrul Hassan e Christoph Schüth. "Processes controlling the extent of groundwater pollution with chromium from tanneries in the Hazaribagh area, Dhaka, Bangladesh". Science of The Total Environment 710 (marzo 2020): 136213. http://dx.doi.org/10.1016/j.scitotenv.2019.136213.

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34

Begum, Sameena, Tasfia Shahid, Md Asraf Uddin, Md Shohel Khan, Zia Ahmed, Syeda Ayshia Akter e Md Tariqul Islam. "Assessment of potable groundwater quality and it’s impact on human health: a case study from Sylhet Region, Bangladesh." Journal of Tropical Resources and Sustainable Science (JTRSS) 7, n. 2 (31 dicembre 2019): 69–76. http://dx.doi.org/10.47253/jtrss.v7i2.512.

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Potable groundwater is the main source of drinking water in Bangladesh. It is continuously polluted by different pollutants and making negative impact on human health. The objectives of this research were to determine the portable water quality and comparison with the standard set by Department of Environment (DoE, 1997), Bangladesh and World Health Organization (WHO, 2011) for assessing the suitability of consumption. A total of 51 groundwater samples was collected from 17 sampling stations at Companiganj Upazila of Sylhet District to analyze pH, iron (Fe), Total Dissolved Solids (TDS) and Total Suspended Solid (TSS). A semi-structured questionnaire survey with 320 purposively selected respondents were conducted to know the people’s perception on human health impacts of ground water. The results revealed that pH values of all stations were within the permissible limit set by DoE and WHO and the range of concentration of Fe, TDS and TSS were 0.3-1.0 mgl-1, 220-2870 mgl-1 and 10-1900 mgl-1, respectively. 58.82% sampling stations were found very high contamination of Fe and TDS followed by medium 11.76% and 23.53%. The TSS values indicated that 11.76% sampling stations had excellent water, while 88.24% had high level of pollution expressed as unacceptable for drinking purposes. The results indicated that 40% respondents were suffered from skin diseases and followed by hair fall (33.9%) and nail damage (26.1%), respectively. 76.47% groundwater samples extremely contaminated with TDS (>1000mgl-1) and this might be indicated that peoples were susceptible to hypertension or blood pressure, gastro-intestinal irritation and cardiovascular disease. Contaminated groundwater were consumed without any purification process, filtering or treatment because of these system were costly for the poor and ultra-poor. So, they prefer to consume contaminated water without any treatment.

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35

Majumder, Ratan K., M. A. Halim, B. B. Saha, Reo Ikawa, Toshio Nakamura, Makoto Kagabu e Jun Shimada. "Groundwater flow system in Bengal Delta, Bangladesh revealed by environmental isotopes". Environmental Earth Sciences 64, n. 5 (23 febbraio 2011): 1343–52. http://dx.doi.org/10.1007/s12665-011-0959-2.

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36

Halim, M. A., R. K. Majumder, S. A. Nessa, Y. Hiroshiro, M. J. Uddin, J. Shimada e K. Jinno. "Hydrogeochemistry and arsenic contamination of groundwater in the Ganges Delta Plain, Bangladesh". Journal of Hazardous Materials 164, n. 2-3 (30 maggio 2009): 1335–45. http://dx.doi.org/10.1016/j.jhazmat.2008.09.046.

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37

Kabir, M. S., M. A. Salam, D. N. R. Paul, M. I. Hossain, N. M. F. Rahman, Abdullah Aziz e M. A. Latif. "Spatial Variation of Arsenic in Soil, Irrigation Water, and Plant Parts: A Microlevel Study". Scientific World Journal 2016 (2016): 1–14. http://dx.doi.org/10.1155/2016/2186069.

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Arsenic pollution became a great problem in the recent past in different countries including Bangladesh. The microlevel studies were conducted to see the spatial variation of arsenic in soils and plant parts contaminated through ground water irrigation. The study was performed in shallow tube well command areas in Sadar Upazila (subdistrict), Faridpur, Bangladesh, where both soil and irrigation water arsenic are high. Semivariogram models were computed to determine the spatial dependency of soil, water, grain, straw, and husk arsenic (As). An arsenic concentration surface was created spatially to describe the distribution of arsenic in soil, water, grain, straw, and husk. Command area map was digitized using Arcview GIS from the “mouza” map. Both arsenic contaminated irrigation water and the soils were responsible for accumulation of arsenic in rice straw, husk, and grain. The accumulation of arsenic was higher in water followed by soil, straw, husk, and grain. Arsenic concentration varied widely within command areas. The extent and propensity of arsenic concentration were higher in areas where high concentration of arsenic existed in groundwater and soils. Spherical model was a relatively better and appropriate model. Kriging method appeared to be more suitable in creating interpolated surface. The average arsenic content in grain was 0.08–0.45 mg/kg while in groundwater arsenic level it ranged from 138.0 to 191.3 ppb.

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38

Sorensen, Ingrid M., Edward A. McBean e Mujibur Rahman. "Retrofitting arsenic-iron removal plants in rural Bangladesh for performance enhancement". Journal of Water, Sanitation and Hygiene for Development 4, n. 3 (22 maggio 2014): 400–409. http://dx.doi.org/10.2166/washdev.2014.122.

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As a result of naturally occurring arsenic in groundwater, it is estimated that 42–60 million people in Bangladesh are exposed to arsenic at concentrations greater than the World Health Organization (WHO) guideline of 10 μg/L. Arsenic-Iron Removal Plants (AIRPs) are capable of removing 50–90% of arsenic from groundwater, but are frequently unable to meet the WHO guideline. The effectiveness of three design modifications intended to improve the performance of AIRPs is described: (1) the addition of scrap or locally available iron to the filtration media, (2) raising the intake pipe that connects the two tanks of the AIRP, and (3) introducing baffles to the aeration tank. Total arsenic, iron, phosphate, and dissolved oxygen were measured to determine the impact of each modification. The addition of iron media showed an increase in arsenic removal up to 13%, while raising the pipe intake accounted for a 3% increase in arsenic removal. The installation of both modifications to the same AIRP is expected to reduce the lifetime body burden from drinking water by one-half. The addition of baffles to the aeration tank showed no evidence of improving the arsenic removal capabilities of the AIRP.

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39

Saha, Narottam, e M. Safiur Rahman. "Groundwater hydrogeochemistry and probabilistic health risk assessment through exposure to arsenic-contaminated groundwater of Meghna floodplain, central-east Bangladesh". Ecotoxicology and Environmental Safety 206 (dicembre 2020): 111349. http://dx.doi.org/10.1016/j.ecoenv.2020.111349.

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40

Halim, M. A., R. K. Majumder, S. A. Nessa, K. Oda, Y. Hiroshiro, B. B. Saha, S. M. Hassain, Sk A. Latif, M. A. Islam e K. Jinno. "Groundwater contamination with arsenic in Sherajdikhan, Bangladesh: geochemical and hydrological implications". Environmental Geology 58, n. 1 (5 agosto 2008): 73–84. http://dx.doi.org/10.1007/s00254-008-1493-8.

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41

Ravenscroft, P., J. M. McArthur e M. A. Hoque. "Stable groundwater quality in deep aquifers of Southern Bangladesh: The case against sustainable abstraction". Science of The Total Environment 454-455 (giugno 2013): 627–38. http://dx.doi.org/10.1016/j.scitotenv.2013.02.071.

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42

Martin, Maria, Rakiba Ferdousi, K. M. Jakeer Hossain e Elisabetta Barberis. "Arsenic from Groundwater to Paddy Fields in Bangladesh: Solid–Liquid Partition, Sorption and Mobility". Water, Air, & Soil Pollution 212, n. 1-4 (29 gennaio 2010): 27–36. http://dx.doi.org/10.1007/s11270-009-0319-y.

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43

Gaus, I., D. G. Kinniburgh, J. C. Talbot e R. Webster. "Geostatistical analysis of arsenic concentration in groundwater in Bangladesh using disjunctive kriging". Environmental Geology 44, n. 8 (1 novembre 2003): 939–48. http://dx.doi.org/10.1007/s00254-003-0837-7.

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44

van Geen, A., K. Radloff, Z. Aziz, Z. Cheng, M. R. Huq, K. M. Ahmed, B. Weinman et al. "Comparison of arsenic concentrations in simultaneously-collected groundwater and aquifer particles from Bangladesh, India, Vietnam, and Nepal". Applied Geochemistry 23, n. 11 (novembre 2008): 3244–51. http://dx.doi.org/10.1016/j.apgeochem.2008.07.005.

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45

Majumder, Ratan K., Mohammad A. Hasnat, Shahadat Hossain, Keita Ikeue e Masato Machida. "An exploration of nitrate concentrations in groundwater aquifers of central-west region of Bangladesh". Journal of Hazardous Materials 159, n. 2-3 (novembre 2008): 536–43. http://dx.doi.org/10.1016/j.jhazmat.2008.02.110.

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46

van Halem, D., S. A. Bakker, G. L. Amy e J. C. van Dijk. "Arsenic in drinking water: a worldwide water quality concern for water supply companies". Drinking Water Engineering and Science 2, n. 1 (30 giugno 2009): 29–34. http://dx.doi.org/10.5194/dwes-2-29-2009.

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Abstract (sommario):

Abstract. For more than a decade it has been known that shallow tube wells in Bangladesh are frequently contaminated with arsenic concentrations at a level that is harmful to human health. By now it is clear that a disaster of an unheard magnitude is going on: the World Health Organization has estimated that long-term exposure to arsenic in groundwater, at concentrations over 500 μg L−1, causes death in 1 in 10 adults. Other studies show that problems with arsenic in groundwater/drinking water occur in many more countries worldwide, such as in the USA and China. In Europe the focus on arsenic problems is currently confined to countries with high arsenic levels in their groundwater, such as Serbia, Hungary and Italy. In most other European countries, the naturally occurring arsenic concentrations are mostly lower than the European drinking water standard of 10 μg L−1. However, from the literature review presented in this paper, it is concluded that at this level health risks cannot be excluded. As consumers in European countries expect the drinking water to be of impeccable quality, it is recommended that water supply companies optimize arsenic removal to a level of <1 μg L−1, which is technically feasible.

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47

Rahman, Mahbubur, Md Morshedul Haque e Shafi M. Tareq. "Appraisal of groundwater vulnerability in south-central part of Bangladesh using DRASTIC model: An approach towards groundwater protection and health safety". Environmental Challenges 5 (dicembre 2021): 100391. http://dx.doi.org/10.1016/j.envc.2021.100391.

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48

Khan, Khalid M., Faruque Parvez, R. Thomas Zoeller, Barbara A. Hocevar, Lisa M. Kamendulis, Diane Rohlman, Mahbubul Eunus e Joseph Graziano. "Thyroid hormones and neurobehavioral functions among adolescents chronically exposed to groundwater with geogenic arsenic in Bangladesh". Science of The Total Environment 678 (agosto 2019): 278–87. http://dx.doi.org/10.1016/j.scitotenv.2019.04.426.

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49

Islam, M. A., M. A. Hoque, K. M. Ahmed e A. P. Butler. "Impact of Climate Change and Land Use on Groundwater Salinization in Southern Bangladesh—Implications for Other Asian Deltas". Environmental Management 64, n. 5 (26 ottobre 2019): 640–49. http://dx.doi.org/10.1007/s00267-019-01220-4.

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50

Zahid, Anwar, M. Qumrul Hassan, K. D. Balke, Matthias Flegr e David W. Clark. "Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh". Environmental Geology 54, n. 6 (13 luglio 2007): 1247–60. http://dx.doi.org/10.1007/s00254-007-0907-3.

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