Log in

Relevant bibliographies by topics / Groundwater arsenic / Journal articles

To see the other types of publications on this topic, follow the link: Groundwater arsenic.

Journal articles on the topic 'Groundwater arsenic'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Groundwater arsenic.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Sovann, C., and D. A. Polya. "Improved groundwater geogenic arsenic hazard map for Cambodia." Environmental Chemistry 11, no. 5 (2014): 595. http://dx.doi.org/10.1071/en14006.

Full text

Abstract:

Environmental context Groundwater arsenic is a major environmental risk to human health in many regions of the world, including Cambodia where groundwater is often used for drinking water. We present data for hitherto poorly sampled regions in Cambodia, notably around Tonle Sap and in the coastal provinces, and provide a geo-statistical model of arsenic in shallow groundwater for the whole country. Abstract Arsenic is a known environmental chemical hazard in shallow groundwaters of Cambodia and is increasingly recognised as a major problem for public health. Notwithstanding this, accurate arse

APA, Harvard, Vancouver, ISO, and other styles

2

Polya, D. A., A. G. Gault, N. Diebe, et al. "Arsenic hazard in shallow Cambodian groundwaters." Mineralogical Magazine 69, no. 5 (2005): 807–23. http://dx.doi.org/10.1180/0026461056950290.

Full text

Abstract:

AbstractOur recent discovery of hazardous concentrations of arsenic in shallow sedimentary aquifers in Cambodia raises the spectre of future deleterious health impacts on a population that, particularly in non-urban areas, extensively use untreated groundwater as a source of drinking water and, in some instances, as irrigation water. We present here small-scale hazard maps for arsenic in shallow Cambodian groundwaters based on >1000 groundwater samples analysed in the Manchester Analytical Geochemistry Unit and elsewhere. Key indicators for hazardous concentrations of arsenic in Cambodian g

APA, Harvard, Vancouver, ISO, and other styles

3

Zinke, Laura. "Groundwater arsenic." Nature Reviews Earth & Environment 1, no. 11 (2020): 558. http://dx.doi.org/10.1038/s43017-020-00110-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Pipattanajaroenkul, Phurinat, Prinpida Sonthiphand, Supeerapat Kraidech, Satika Boonkaewwan, and Srilert Chotpantarat. "Detection of arsenite-oxidizing bacteria in groundwater with low arsenic concentration in Rayong province, Thailand." MATEC Web of Conferences 192 (2018): 03036. http://dx.doi.org/10.1051/matecconf/201819203036.

Full text

Abstract:

As contamination in groundwater has become one of the global problems. It has been reported that million people around the world get adverse effects on their health by direct and indirect As-contaminated groundwater consumption. In groundwater, the most abundant As species are arsenite (As3+) and arsenate (As5+). Arsenite is more toxic and mobile than arsenate. Consequently, arsenite oxidation is considered as an important process in groundwater As bioremediation. It has been reported that arsenite-oxidizing bacteria play an important role in reducing As toxicity in contaminated groundwater en

APA, Harvard, Vancouver, ISO, and other styles

5

Fischer, Alicia, James Saunders, Sara Speetjens, et al. "Long-Term Arsenic Sequestration in Biogenic Pyrite from Contaminated Groundwater: Insights from Field and Laboratory Studies." Minerals 11, no. 5 (2021): 537. http://dx.doi.org/10.3390/min11050537.

Full text

Abstract:

Pumping groundwater from arsenic (As)-contaminated aquifers exposes millions of people, especially those in developing countries, to high doses of the toxic contaminant. Previous studies have investigated cost-effective techniques to remove groundwater arsenic by stimulating sulfate-reducing bacteria (SRB) to form biogenic arsenian pyrite. This study intends to improve upon these past methods to demonstrate the effectiveness of SRB arsenic remediation at an industrial site in Florida. This study developed a ferrous sulfate and molasses mixture to sequester groundwater arsenic in arsenian pyrit

APA, Harvard, Vancouver, ISO, and other styles

6

Wu, Ruohan, Lingqian Xu, and David A. Polya. "Groundwater Arsenic-Attributable Cardiovascular Disease (CVD) Mortality Risks in India." Water 13, no. 16 (2021): 2232. http://dx.doi.org/10.3390/w13162232.

Full text

Abstract:

Cardiovascular diseases (CVDs) have been recognized as the most serious non-carcinogenic detrimental health outcome arising from chronic exposure to arsenic. Drinking arsenic contaminated groundwaters is a critical and common exposure pathway for arsenic, notably in India and other countries in the circum-Himalayan region. Notwithstanding this, there has hitherto been a dearth of data on the likely impacts of this exposure on CVD in India. In this study, CVD mortality risks arising from drinking groundwater with high arsenic (>10 μg/L) in India and its constituent states, territories, and d

APA, Harvard, Vancouver, ISO, and other styles

7

Sun, Ying Jie, Gang Wang, Mou Lu, Bo Fu, Ying Chen, and Qing Yuan Guo. "Analysis on Migration and Transformation Law of Arsenic between Groundwater and Fishponds in the Northen Suburb Groundwater Source Field, Zhengzhou." Applied Mechanics and Materials 71-78 (July 2011): 2948–52. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2948.

Full text

Abstract:

Based on the test results of the samples of groundwater, fishpond water, pond sediment and topsoil, analysis on migration and transformation laws of arsenic between them was executed. The SPSS statistical analysis software (V1.70) was used, in view to find out the influencing factors about migration and transformation of arsenic. It may be concluded that arsenic in groundwater was transferred to ponds through the irrigation supplies, which was adsorbed by the iron and manganese oxidation of fishpond sediment. As the changing of environment, the arsenite in the groundwater was transformed into

APA, Harvard, Vancouver, ISO, and other styles

8

Müller, Daniel, Charlotte Nina Stirn, and Martin Veit Maier. "Arsenic Removal from Highly Contaminated Groundwater by Iron Electrocoagulation—Investigation of Process Parameters and Iron Dosage Calculation." Water 13, no. 5 (2021): 687. http://dx.doi.org/10.3390/w13050687.

Full text

Abstract:

Electrocoagulation (EC) is gaining increased attention for water treatment as it efficiently removes various water contaminants. Therefore, EC was applied to remove arsenic from groundwater of a highly contaminated site in Hamburg, Germany. Groundwater containing 3250 and 14,600 µg/L arsenic, mainly as Arsenite (As(III)), was treated in three different EC batch reactors using a monopolar parallel electrode-configuration. This study focused on iron EC with constant current densities and variable voltage, to investigate the influence of current density, surface to volume ratio, initial arsenic c

APA, Harvard, Vancouver, ISO, and other styles

9

Shrestha, S. M., K. Rijal, and M. R. Pokhrel. "Spatial Distribution and Seasonal Variation of Arsenic in Groundwater of the Kathmandu Valley, Nepal." Journal of Institute of Science and Technology 19, no. 2 (2015): 7–13. http://dx.doi.org/10.3126/jist.v19i2.13845.

Full text

Abstract:

A study was conducted in forty-one deep groundwater and twenty shallow groundwater wells of Kathmandu Valley, Nepal to assess arsenic contamination (shallow and deep groundwater) and spatial and seasonal variation in deep groundwater. The depths of the wells were ranged from 9 to 304 m. Groundwater samples were collected during pre monsoon and post monsoon in 2012. Atomic Absorption Spectrometer (AAS) was used to measure the concentration of arsenic. In pre monsoon and post monsoon, 36.59 % and 31.70 % of deep groundwater wells, respectively exceeded permissible values of World Health Organiza

APA, Harvard, Vancouver, ISO, and other styles

10

Lu, Shuai, Xiaoyu Feng, and Xiaosi Su. "Geochemical characteristics of arsenic in groundwater during riverbank filtration: a case study of Liao River, Northeast China." Water Supply 20, no. 8 (2020): 3288–300. http://dx.doi.org/10.2166/ws.2020.213.

Full text

Abstract:

Abstract Affected by groundwater exploitation in the riverside, the infiltration of river water to recharge groundwater will cause changes in the groundwater environment, which has an important impact on the geochemical behavior of arsenic in groundwater. In this study, the groundwater environment zones in the process of river water infiltration were divided, and the arsenic content in groundwater in the study area had a good correlation with the environment zones. In the weak oxidation environment zone and the weak reductive environment zone, as the distance from the riverbank increased, the

APA, Harvard, Vancouver, ISO, and other styles

11

Lu, H. Y. "Characterization of extractable metals from the aquifers with arsenic contamination in the Tsengwen Creek, Taiwan." Soil and Water Research 9, No. 2 (2014): 66–76. http://dx.doi.org/10.17221/42/2013-swr.

Full text

Abstract:

Arsenic contamination in groundwater is a common groundwater problem worldwide. To manage groundwater resources effectively, it is crucial to determine the arsenic source. Taiwan&rsquo;s Tsengwen Creek watershed is one of the known areas for groundwater arsenic contamination. Water-rock interactions are evaluated on a regional scale. A conceptual hydrogeological framework is first established based on groundwater hydrochemistry. The local aquifer system can be categorized into high-arsenic deep aquifer and low-arsenic shallow aquifer. The average geochemistry of sediments indicates that ar

APA, Harvard, Vancouver, ISO, and other styles

12

Sorlini, S., F. Gialdini, and M. Stefan. "Arsenic oxidation by UV radiation combined with hydrogen peroxide." Water Science and Technology 61, no. 2 (2010): 339–44. http://dx.doi.org/10.2166/wst.2010.799.

Full text

Abstract:

Arsenic is a widespread contaminant in the environment around the world. The most abundant species of arsenic in groundwater are arsenite [As(III)] and arsenate [As(V)]. Several arsenic removal processes can reach good removal yields only if arsenic is present as As(V). For this reason it is often necessary to proceed with a preliminary oxidation of As(III) to As(V) prior to the removal technology. Several studies have focused on arsenic oxidation with conventional reagents and advanced oxidation processes. In the present study the arsenic oxidation was evaluated using hydrogen peroxide, UV ra

APA, Harvard, Vancouver, ISO, and other styles

13

Ai, L. Nguyen, A. Sato, D. Inoue, K. Sei, S. Soda, and M. Ike. "Enrichment of arsenite oxidizing bacteria under autotrophic conditions and the isolation and characterization of facultative chemolithoautotrophic arsenite oxidizing bacteria for removal of arsenic from groundwater." Water Supply 12, no. 5 (2012): 707–14. http://dx.doi.org/10.2166/ws.2012.045.

Full text

Abstract:

Arsenic contamination in groundwater has caused severe health problems throughout the world. Developing cost-effective processes for arsenic removal is an emerging issue. Because As(III) is predominant in groundwater and is more difficult to remove than As(V) is, oxidation of As(III) to As(V) is necessary to improve overall arsenic removal. This study was undertaken to enrich arsenite oxidizing bacteria under autotrophic conditions and to isolate and characterize facultative chemolithoautotrophic arsenite oxidizing bacteria (CAOs) that can oxidize As(III) effectively to As(V). An enrichment cu

APA, Harvard, Vancouver, ISO, and other styles

14

Kocar, Benjamin D., Shawn G. Benner, and Scott Fendorf. "Deciphering and predicting spatial and temporal concentrations of arsenic within the Mekong Delta aquifer." Environmental Chemistry 11, no. 5 (2014): 579. http://dx.doi.org/10.1071/en13244.

Full text

Abstract:

Environmental context Himalayan derived arsenic contaminates groundwater across Asia, ranging from the deltas of Ganges-Brahmaputra of Bangladesh to the interior basins of the Yangtze and Yellow Rivers in China, where more than one hundred million people are drinking water with hazardous levels of the toxin. Our ability to predict the distribution and changes in arsenic concentration in aquifers of affected regions has been limited. Here we provide a dynamic model that captures arsenic migration and can be used to forecast changes in groundwater arsenic concentrations. Abstract Unravelling the

APA, Harvard, Vancouver, ISO, and other styles

15

Podgorski, Joel, and Michael Berg. "Global threat of arsenic in groundwater." Science 368, no. 6493 (2020): 845–50. http://dx.doi.org/10.1126/science.aba1510.

Full text

Abstract:

Naturally occurring arsenic in groundwater affects millions of people worldwide. We created a global prediction map of groundwater arsenic exceeding 10 micrograms per liter using a random forest machine-learning model based on 11 geospatial environmental parameters and more than 50,000 aggregated data points of measured groundwater arsenic concentration. Our global prediction map includes known arsenic-affected areas and previously undocumented areas of concern. By combining the global arsenic prediction model with household groundwater-usage statistics, we estimate that 94 million to 220 mill

APA, Harvard, Vancouver, ISO, and other styles

16

Rahman, Mohammad Mahmudur, Mrinal Kumar Sengupta, Sad Ahamed, et al. "Status of groundwater arsenic contamination and human suffering in a Gram Panchayet (cluster of villages) in Murshidabad, one of the nine arsenic affected districts in West Bengal, India." Journal of Water and Health 3, no. 3 (2005): 283–96. http://dx.doi.org/10.2166/wh.2005.038.

Full text

Abstract:

A detailed study was carried out in a cluster of villages known as Sagarpara Gram Panchayet (GP), covering an area of 20 km2 and population of 24,419 to determine the status of groundwater arsenic contamination and related health effects. The arsenic analysis of all hand tubewells (n = 565) in working condition showed, 86.2% and 58.8% of them had arsenic above 10, and 50 μg l−1, respectively. The groundwater samples from all 21 villages in Sagarpara GP contained arsenic above 50 μg l−1. In our preliminary clinical survey across the 21 villages, 3,302 villagers were examined and 679 among them

APA, Harvard, Vancouver, ISO, and other styles

17

Mukherjee, A. B., and P. Bhattacharya. "Arsenic in groundwater in the Bengal Delta Plain: slow poisoning in Bangladesh." Environmental Reviews 9, no. 3 (2001): 189–220. http://dx.doi.org/10.1139/a01-007.

Full text

Abstract:

The purpose of this paper is to provide an overview of the problems concerning the widespread occurrences of arsenic in groundwater in Bangladesh, a land with enormous resources of precipitation, surface water, and groundwater. Because of the potential risk of microbiological contamination in the surface water, groundwater was relied on as an alternate source of drinking water. Exploitation of groundwater has increased dramatically in Bangladesh since the 1960s to provide safe water for drinking and to sustain wetland agriculture. The presence of arsenic in the groundwater at elevated concentr

APA, Harvard, Vancouver, ISO, and other styles

18

Magalona, Maritess L., Milagros M. Peralta, Marivic S. Lacsamana, Veronica C. Sabularse, Amado B. Pelegrina, and Constancio C. De Guzman. "Analysis of Inorganic Arsenic (As(III) and Total As) and Some Physicochemical Parameters in Groundwater Samples from Selected Areas in Bulacan, Batangas, and Laguna, Philippines." KIMIKA 30, no. 2 (2019): 28–38. http://dx.doi.org/10.26534/kimika.v30i2.28-38.

Full text

Abstract:

Numerous cases of arsenic (As) poisoning from contaminated groundwater have been reported worldwide including the Philippines. The maximum contamination limit has been set by World Health Organization (WHO) for arsenic in drinking water at 10 ppb. This study determined the As(III) and total As content of groundwater samples in selected sites of Bulacan, Batangas, and Laguna by differential pulse anodic stripping voltammetry (DPASV). The pH, temperature, conductivity, total solids, turbidity, and salinity of the groundwater samples were also determined during sample collection. Groundwater samp

APA, Harvard, Vancouver, ISO, and other styles

19

Ike, M., T. Miyazaki, N. Yamamoto, K. Sei, and S. Soda. "Removal of arsenic from groundwater by arsenite-oxidizing bacteria." Water Science and Technology 58, no. 5 (2008): 1095–100. http://dx.doi.org/10.2166/wst.2008.462.

Full text

Abstract:

The presence of arsenic in groundwater has been of great public concern because of its high toxicity. For purification of arsenic-contaminated groundwater, bacterial oxidation of arsenite, As(III), with a chemical adsorption process was examined in this study. After As(III) oxidation to arsenate, As(V), arsenic is easily removable from contaminated groundwater because As(V) is more adsorptive to absorbents than As(III). By acclimation to As(III) of high concentrations, a mixed culture of heterotrophic bacteria with high As(III)-oxidizing activity was obtained from a soil sample that was free f

APA, Harvard, Vancouver, ISO, and other styles

20

Chwirka, Joseph D., Bruce M. Thomson, and John M. Stomp. "Removing arsenic from groundwater." Journal - American Water Works Association 92, no. 3 (2000): 79–88. http://dx.doi.org/10.1002/j.1551-8833.2000.tb08911.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Liu, Fan, Guanxing Huang, Jichao Sun, Jihong Jing, and Ying Zhang. "Distribution of arsenic in shallow aquifers of Guangzhou region, China: natural and anthropogenic impacts." Water Quality Research Journal 49, no. 4 (2014): 354–71. http://dx.doi.org/10.2166/wqrjc.2014.014.

Full text

Abstract:

To elucidate the distribution of arsenic in shallow aquifers of the Guangzhou region (South China), 85 groundwater samples were collected and 18 chemical parameters of them were analyzed. The arsenic concentration of groundwater ranged from below detection limit to 0.13 mg/L. The results showed that those areas with high arsenic concentration were characterized by porous aquifers, low-lying, relief topography and close proximity to fault belt and rivers. The reductive dissolution of Fe (hydr)oxides is the main control mechanism for arsenic enrichment in the river delta region where groundwater

APA, Harvard, Vancouver, ISO, and other styles

22

Sobhanardakani, Soheil. "Health Risk Assessment of Inorganic Arsenic Through Groundwater Drinking Pathway in some Agricultural Districts of Hamedan, West of Iran." Avicenna Journal of Environmental Health Engineering 5, no. 2 (2018): 73–77. http://dx.doi.org/10.15171/ajehe.2018.10.

Full text

Abstract:

Groundwater resources are an important portion of potable water in Hamedan Province, Iran. Therefore, monitoring the pollutants especially heavy metals in these resources are vital to protect the residents’ health. This study aimed to assess the health risks caused by inorganic arsenic pollution through groundwater drinking pathway in four important agricultural areas of Hamedan Province, Iran. In so doing, a total of 180 groundwater wells were chosen randomly for sampling during the spring and summer seasons in 2015. The samples were filtered (0.45 μm), preserved with HNO3 at a pH level lower

APA, Harvard, Vancouver, ISO, and other styles

23

Corsini, Anna, Lucia Cavalca, Gerard Muyzer, and Patrizia Zaccheo. "Effectiveness of various sorbents and biological oxidation in the removal of arsenic species from groundwater." Environmental Chemistry 11, no. 5 (2014): 558. http://dx.doi.org/10.1071/en13210.

Full text

Abstract:

Environmental context Arsenic contamination of aquifers is a worldwide public health concern and several technologies have been developed to reduce the arsenic content of groundwater. We investigated the efficiency of various materials for arsenic removal from groundwater and found that iron-based sorbents have great affinity for arsenic even if groundwater composition can depress their ability to bind arsenic. Moreover, we showed that the use of microorganisms can enhance the removal of arsenic from groundwater. Abstract The AsIII and AsV adsorption capacity of biochar, chabazite, ferritin-ba

APA, Harvard, Vancouver, ISO, and other styles

24

Rodríguez-Lado, Luis, Guifan Sun, Michael Berg, et al. "Groundwater Arsenic Contamination Throughout China." Science 341, no. 6148 (2013): 866–68. http://dx.doi.org/10.1126/science.1237484.

Full text

Abstract:

Arsenic-contaminated groundwater used for drinking in China is a health threat that was first recognized in the 1960s. However, because of the sheer size of the country, millions of groundwater wells remain to be tested in order to determine the magnitude of the problem. We developed a statistical risk model that classifies safe and unsafe areas with respect to geogenic arsenic contamination in China, using the threshold of 10 micrograms per liter, the World Health Organization guideline and current Chinese standard for drinking water. We estimate that 19.6 million people are at risk of being

APA, Harvard, Vancouver, ISO, and other styles

25

Lotter, Jason T., Steven E. Lacey, Ramon Lopez, Genaro Socoy Set, Amid P. Khodadoust, and Serap Erdal. "Groundwater arsenic in Chimaltenango, Guatemala." Journal of Water and Health 12, no. 3 (2013): 533–42. http://dx.doi.org/10.2166/wh.2013.100.

Full text

Abstract:

In the Municipality of Chimaltenango, Guatemala, we sampled groundwater for total inorganic arsenic. In total, 42 samples were collected from 27 (43.5%) of the 62 wells in the municipality, with sites chosen to achieve spatial representation throughout the municipality. Samples were collected from household faucets used for drinking water, and sent to the USA for analysis. The only site found to have a concentration above the 10 μg/L World Health Organization provisional guideline for arsenic in drinking water was Cerro Alto, where the average concentration was 47.5 μg/L. A health risk assessm

APA, Harvard, Vancouver, ISO, and other styles

26

Sun, Ying Jie, Gang Wang, Mou Lu, Bo Fu, Ying Chen, and Qing Yuan Guo. "Distribution and Influencing Factors of Arsenic in Groundwater - Based on the Riverside Groundwater Source Field of some Northern City, China." Applied Mechanics and Materials 71-78 (July 2011): 2953–56. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2953.

Full text

Abstract:

The purpose of this study was to evaluate the geological and anthropogenic aspects of As pollution in groundwater of Northern Suburb Groundwater Source Field in Zhengzhou, China. Based on the groundwater samples of 78 wells in the groundwater source field of some northern city in China, distribution and influencing factors of arsenic were analyzed. The results show that: in the horizontal direction, the arsenic concentration outside beach is higher than that inside; the arsenic concentration presents the regional and continual distribution in the east area and west area, respectively. The arse

APA, Harvard, Vancouver, ISO, and other styles

27

Gwachha, Sushila, Bishwa Nath Acharya, Agni Dhakal, Sujen Man Shrestha, and Tista Prasai Joshi. "Assessment of Arsenic Content in Deep Groundwater of Kathmandu Valley, Nepal." Nepal Journal of Science and Technology 19, no. 1 (2020): 69–77. http://dx.doi.org/10.3126/njst.v19i1.29785.

Full text

Abstract:

The contamination of groundwater by arsenic is one of the major problems in Nepal. This study was conducted in 20 deep groundwater (>200m) samples of Kathmandu valley to assess the arsenic content of different groundwater zones and to determine the relationship of arsenic with physico-chemical parameters. Samples were collected in the post-monsoon season of 2016. The random sampling method was applied to the collection of water samples.Standard methods as APHA 2005 was followed for the analysis of the water sample.Arsenic concentration showed spatial variation. The maximum concentration of

APA, Harvard, Vancouver, ISO, and other styles

28

Yokota, H., K. Tanabe, M. Sezaki, et al. "Arsenic contamination in groundwater of Samta, Bangladesh." Water Science and Technology 46, no. 11-12 (2002): 375–80. http://dx.doi.org/10.2166/wst.2002.0765.

Full text

Abstract:

In March 1997, we analyzed the water of all tubewells used for drinking in Samta village in the Jessore district, Bangladesh. It has been confirmed from the survey that the arsenic contamination in Samta was one of the worst in the Ganges basin including West Bengal, India. 90% of the tubewells had arsenic concentrations above the Bangladesh standard of 0.05 mg/l. Tubewells with higher arsenic concentrations of over 0.50 mg/l were distributed in the southern area with a belt-like shape from east to west, and the distribution of arsenic concentration showed gradual decreasing toward northern ar

APA, Harvard, Vancouver, ISO, and other styles

29

Nguyen, Trung Dinh. "The cause of arsenic contamination of groundwater in Cat Tien district, Lam Dong province." Science and Technology Development Journal 19, no. 1 (2016): 101–12. http://dx.doi.org/10.32508/stdj.v19i1.549.

Full text

Abstract:

Five positions were drilled with the depth of 45 metres, in order to research the source of arsenic contamination in groundwater in Cat Tien district, Lam Dong province. In the Cat Tien district, high concentratring of arsenic are found in both of the Holocene (adQ) and Pleistocene (J2ln) aquifers. Reduction of FeOOH(As) and reduction of arsenic poverty ore types to release arsenic to solution, are main mechanisms to explain the arsenic pollutes groundwater in Cat Tien district. The high concentration of arsenic in the sediments of the Cat Tien delta and the occurrence of reducing conditions w

APA, Harvard, Vancouver, ISO, and other styles

30

Naseem, Sadaf, Viqar Husain, and Shella Bano. "Arsenic Contamination in Indus Alluvial Plain Sediments and Groundwater of Hyderabad and its Surroundings, Pakistan." International Journal of Economic and Environmental Geology 10, no. 1 (2019): 5–15. http://dx.doi.org/10.46660/ijeeg.vol10.iss1.2019.211.

Full text

Abstract:

Alluvial aquifers are the main source of groundwater worldwide. In Hyderabad area of Sindh province, aquifers are naturally polluted by arsenic (As) like other alluvial aquifers of the world. Present study was carried out to decipher the mobilization mechanism of arsenic in Holocene aquifers of Indus river basin, where a large population is at the risk of arsenic ingested diseases. Fifty groundwater samples were collected from Hyderabad and its surrounding areas to examine their physical, chemical and microbiological characteristics. In 80% of the groundwater samples, TDS is above the WHO limi

APA, Harvard, Vancouver, ISO, and other styles

31

Naseem, Sadaf, Viqar Husain, and Shella Bano. "Arsenic Contamination in Indus Alluvial Plain Sediments and Groundwater of Hyderabad and its Surroundings, Pakistan." International Journal of Economic and Environmental Geology 10, no. 1 (2019): 5–15. http://dx.doi.org/10.46660/ojs.v10i1.211.

Full text

Abstract:

Alluvial aquifers are the main source of groundwater worldwide. In Hyderabad area of Sindh province, aquifers are naturally polluted by arsenic (As) like other alluvial aquifers of the world. Present study was carried out to decipher the mobilization mechanism of arsenic in Holocene aquifers of Indus river basin, where a large population is at the risk of arsenic ingested diseases. Fifty groundwater samples were collected from Hyderabad and its surrounding areas to examine their physical, chemical and microbiological characteristics. In 80% of the groundwater samples, TDS is above the WHO limi

APA, Harvard, Vancouver, ISO, and other styles

32

Trung, Dang Tran, Nguyen Thi Nhan, Than Van Don, Nguyen Kim Hung, Jolanta Kazmierczak, and Pham Quy Nhan. "The controlling of paleo-riverbed migration on Arsenic mobilization in groundwater in the Red River Delta, Vietnam." VIETNAM JOURNAL OF EARTH SCIENCES 42, no. 2 (2020): 161–75. http://dx.doi.org/10.15625/0866-7187/0/0/14998.

Full text

Abstract:

In the Red River Delta, the concentrations of Arsenic in groundwater of alluvial dominated systems are very high, exceeding the WHO’s permissible. The correlation between the Arsenic concentrations in groundwater and the age of Holocene sediment as a key controlling groundwater Arsenic concentration in the Red River delta has been investigated. The evolution of sediments in the Holocene is closely related to paleo-riverbed migration in the past. A combination of methods is implemented including remote sensing, multi-electrode profiling (MEP), gamma-logging, drilling, soil sample and groundwate

APA, Harvard, Vancouver, ISO, and other styles

33

Trung, Dang Tran, Nguyen Thi Nhan, Than Van Don, Nguyen Kim Hung, Jolanta Kazmierczak, and Pham Quy Nhan. "The controlling of paleo-riverbed migration on Arsenic mobilization in groundwater in the Red River Delta, Vietnam." VIETNAM JOURNAL OF EARTH SCIENCES 42, no. 2 (2020): 161–75. http://dx.doi.org/10.15625/0866-7187/42/2/14998.

Full text

Abstract:

In the Red River Delta, the concentrations of Arsenic in groundwater of alluvial dominated systems are very high, exceeding the WHO’s permissible. The correlation between the Arsenic concentrations in groundwater and the age of Holocene sediment as a key controlling groundwater Arsenic concentration in the Red River delta has been investigated. The evolution of sediments in the Holocene is closely related to paleo-riverbed migration in the past. A combination of methods is implemented including remote sensing, multi-electrode profiling (MEP), gamma-logging, drilling, soil sample and groundwate

APA, Harvard, Vancouver, ISO, and other styles

34

Podgorski, Joel, Ruohan Wu, Biswajit Chakravorty, and David A. Polya. "Groundwater Arsenic Distribution in India by Machine Learning Geospatial Modeling." International Journal of Environmental Research and Public Health 17, no. 19 (2020): 7119. http://dx.doi.org/10.3390/ijerph17197119.

Full text

Abstract:

Groundwater is a critical resource in India for the supply of drinking water and for irrigation. Its usage is limited not only by its quantity but also by its quality. Among the most important contaminants of groundwater in India is arsenic, which naturally accumulates in some aquifers. In this study we create a random forest model with over 145,000 arsenic concentration measurements and over two dozen predictor variables of surface environmental parameters to produce hazard and exposure maps of the areas and populations potentially exposed to high arsenic concentrations (>10 µg/L) in groun

APA, Harvard, Vancouver, ISO, and other styles

35

Tahir, M. A., H. Rasheed, and A. Malana. "Method development for arsenic analysis by modification in spectrophotometric technique." Drinking Water Engineering and Science 5, no. 1 (2012): 1–8. http://dx.doi.org/10.5194/dwes-5-1-2012.

Full text

Abstract:

Abstract. Arsenic is a non-metallic constituent, present naturally in groundwater due to some minerals and rocks. Arsenic is not geologically uncommon and occurs in natural water as arsenate and arsenite. Additionally, arsenic may occur from industrial discharges or insecticide application. World Health Organization (WHO) and Pakistan Standard Quality Control Authority have recommended a permissible limit of 10 ppb for arsenic in drinking water. Arsenic at lower concentrations can be determined in water by using high tech instruments like the Atomic Absorption Spectrometer (hydride generation)

APA, Harvard, Vancouver, ISO, and other styles

36

Tahir, M. A., H. Rasheed, and A. Malana. "Method development for arsenic analysis by modification in spectrphotometric technique." Drinking Water Engineering and Science Discussions 1, no. 2 (2008): 135–54. http://dx.doi.org/10.5194/dwesd-1-135-2008.

Full text

Abstract:

Abstract. Arsenic is a non-metallic constituent, present naturally in groundwater due to some minerals and rocks. Arsenic is not geologically uncommon and occurs in natural water as arsenate and arsenite. Additionally, arsenic may occur from industrial discharges or insecticide application. World Health Organization (WHO) and Pakistan Standard Quality Control Authority have recommended a permissible limit of 10 ppb for arsenic in drinking water. The arsenic at lower concentrations can be determined in water by using high tech instruments like Atomic Absorption Spectrometer (hydride generation)

APA, Harvard, Vancouver, ISO, and other styles

37

Noda, Jun, Reika Hakamada, Kazuyki Suzuki, Teruo Miura, and Koichiro Sera. "Environmental contamination by arsenic and lead in some rural villages in India." International Journal of PIXE 25, no. 01n02 (2015): 29–37. http://dx.doi.org/10.1142/s0129083515500047.

Full text

Abstract:

This investigation focuses on the arsenic contamination problems in tube well groundwater systems and the different forms of arsenic and other toxic elements accumulated in human hair samples taken in a rural area of Allahabad, Uttar Pradesh, India. The local residents at the study site depend on groundwater as their major source of household water. The oxidation reduction potential (ORP) and pH of groundwater samples were measured directly after the sampling of groundwater. Arsenic concentrations were measured directly in water samples by a colorimetric arsenic analysis kit after the water wa

APA, Harvard, Vancouver, ISO, and other styles

38

Nga, T. T. V., M. Inoue, N. R. Khatiwada, and S. Takizawa. "Heavy metal tracers for the analysis of groundwater contamination: case study in Hanoi City, Vietnam." Water Supply 3, no. 1-2 (2003): 343–50. http://dx.doi.org/10.2166/ws.2003.0123.

Full text

Abstract:

Groundwater quality data taken in August and December 2000 revealed that the groundwaters in Hanoi are contaminated by arsenic (up to 110 μg/l), iron (up to 32 mg Fe/l), organic matter (DOC up to 12 mg/l), and ammonia (up to 29 mg-N/l). Data on trace metals, as well as conventional water quality parameters such as pH, ORP, major cations and anions, were used to analyse groundwater flow and the mechanisms of groundwater contamination using multivariate data analysis methods. The results of Cluster Analysis (CA) demonstrated that the groundwater flow and characteristics were separated into three

APA, Harvard, Vancouver, ISO, and other styles

39

Fan, Wei, Jinlong Zhou, Yinzhu Zhou, Yanyan Zeng, and Yunfei Chen. "Factors influencing the distribution of arsenic, fluorine and iodine in shallow groundwater in the oasis zone in the southern margin of the Tarim Basin in Xinjiang, P. R. China." E3S Web of Conferences 98 (2019): 09006. http://dx.doi.org/10.1051/e3sconf/20199809006.

Full text

Abstract:

Test results on 302 shallow groundwater samples in an oasis zone in the southern margin of the Tarim Basin in Xinjiang were collected and analysed for a large number of chemical parameters and subjected to mathematical statistics methods. Results show that groundwater with high arsenic, fluorine and iodine concentrations were mainly distributed in the Minfeng County in the central part of the study area. Shallow groundwater in the southern margin of the entire Tarim Basin generally had high fluorine concentrations. The distribution of arsenic and fluorine in groundwater were similar. Intensive

APA, Harvard, Vancouver, ISO, and other styles

40

Adeloju, Samuel B., Shahnoor Khan, and Antonio F. Patti. "Arsenic Contamination of Groundwater and Its Implications for Drinking Water Quality and Human Health in Under-Developed Countries and Remote Communities—A Review." Applied Sciences 11, no. 4 (2021): 1926. http://dx.doi.org/10.3390/app11041926.

Full text

Abstract:

Arsenic is present naturally in many geological formations around the world and has been found to be a major source of contamination of groundwater in some countries. This form of contamination represents a serious threat to health, economic and social well-being, particularly in under-developed countries and remote communities. The chemistry of arsenic and the factors that influence the form(s) in which it may be present and its fate when introduced into the environment is discussed briefly in this review. A global overview of arsenic contamination of groundwater around the world is then disc

APA, Harvard, Vancouver, ISO, and other styles

41

Petrusevski, B., S. Sharma, W. G. van der Meer, et al. "Four years of development and field-testing of IHE arsenic removal family filter in rural Bangladesh." Water Science and Technology 58, no. 1 (2008): 53–58. http://dx.doi.org/10.2166/wst.2008.335.

Full text

Abstract:

UNESCO-IHE has been developing an arsenic removal family filter with a capacity of 100 L/day based on arsenic adsorption onto iron oxide coated sand, a by-product of iron removal plants. The longer term and field conditions performance of the third generation of eleven family filters prototypes were tested in rural Bangladesh for 30 months. All filters achieved initially highly effective arsenic removal irrespective of arsenic concentration and groundwater composition. Arsenic level in filtrate reached 10 μg/l after 50 days of operation at one testing site and after 18 months of continuous ope

APA, Harvard, Vancouver, ISO, and other styles

42

Rivett, M. O., H. L. Robinson, L. M. Wild, et al. "Arsenic occurrence in Malawi groundwater." Journal of Applied Sciences and Environmental Management 22, no. 11 (2019): 1807. http://dx.doi.org/10.4314/jasem.v22i11.16.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Friedrich, M. J. "Predicting Arsenic Contamination in Groundwater." JAMA 310, no. 15 (2013): 1551. http://dx.doi.org/10.1001/jama.2013.280605.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Nickson, Ross, John McArthur, William Burgess, Kazi Matin Ahmed, Peter Ravenscroft, and Mizanur Rahmanñ. "Arsenic poisoning of Bangladesh groundwater." Nature 395, no. 6700 (1998): 338. http://dx.doi.org/10.1038/26387.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Benner, Shawn G., and Scott Fendorf. "Arsenic in South Asia Groundwater." Geography Compass 4, no. 10 (2010): 1532–52. http://dx.doi.org/10.1111/j.1749-8198.2010.00387.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Marquez, Elia B., Patrick L. Gurian, Alberto Barud-Zubillaga, and Philip C. Goodell. "Correlates of Arsenic Mobilization into the Groundwater in El Paso, Texas." Air, Soil and Water Research 4 (January 2011): ASWR.S6356. http://dx.doi.org/10.4137/aswr.s6356.

Full text

Abstract:

This paper addresses the contamination of groundwater by arsenic, a naturally occurring phenomenon that has caused serious cases of arsenic poisoning around the world. While a number of chemical processes are known to be capable of mobilizing arsenic, the extent to which different processes are active in actual geological settings is much less clear. In this work, the El Paso, Texas region is analyzed as a case study to better understand the factors associated with high arsenic levels in groundwater. This study includes two basins that supply drinking water to approximately 2.5 million people.

APA, Harvard, Vancouver, ISO, and other styles

47

Azam, M. S., M. Shafiquzzaman, Iori Mishima, and Jun Nakajima. "Arsenic Release from Contaminated Soil of Bangladesh in Natural Field Conditions." Journal of Scientific Research 1, no. 2 (2009): 258–69. http://dx.doi.org/10.3329/jsr.v1i2.1708.

Full text

Abstract:

Leaching experiment was conducted to understand the mechanism of arsenic release from soil in the natural field conditions. Two types of column were run, one with de-ionized water (DW) and another with synthetic Bangladesh groundwater (GW) as influent which simulated rainfall and groundwater conditions, respectively. As the primary mechanism for the arsenic release from soil it was identified that the redox potential (Eh) was major importance. In highly reducing conditions both arsenic and iron release was high. Released mass of arsenic was higher in DW column than GW column. The difference wa

APA, Harvard, Vancouver, ISO, and other styles

48

Moed, D. H., D. van Halem, J. Q. J. C. Verberk, G. L. Amy, and J. C. van Dijk. "Influence of groundwater composition on subsurface iron and arsenic removal." Water Science and Technology 66, no. 1 (2012): 173–78. http://dx.doi.org/10.2166/wst.2012.151.

Full text

Abstract:

Subsurface arsenic and iron removal (SAR/SIR) is a novel technology to remove arsenic, iron and other groundwater components by using the subsoil. This research project investigated the influence of the groundwater composition on subsurface treatment. In anoxic sand column experiments, with synthetic groundwater and virgin sand, it was found that several dissolved substances in groundwater compete for adsorption sites with arsenic and iron. The presence of 0.01 mmol L−1 phosphate, 0.2 mmol L−1 silicate, and 1 mmol L−1 nitrate greatly reduced the efficiency of SAR, illustrating the vulnerabilit

APA, Harvard, Vancouver, ISO, and other styles

49

Nguyen, Trung Dinh, and Thuan Duc Nguyen. "Evaluation of arsen in surface water and groundwater layers in the Cat Tien district of the Lam Dong province." Science and Technology Development Journal 19, no. 3 (2016): 99–107. http://dx.doi.org/10.32508/stdj.v19i3.469.

Full text

Abstract:

Evaluation of arsenic pollution in surface water and groundwarter layers in the Cát Tiên district of the Lam Dong province has been carried out during the period of 2013–2015. Arsenic concentrations of 37 samples of surface water and dug well water ranged from 0 to 5 ppb. 9/29 water samples drilling wells of the Quaternary groundwater layer had arsenic concentrations higher than those of the standard QCVN01:2009/BYT. The arsenic concentration of samples collected from the Cat Tien commune (CT-TT 04) and the Gia Vien commune (CT-GV 03) was about 10 times higher than that of the standard QCVN 01

APA, Harvard, Vancouver, ISO, and other styles

50

Zhuang, Zhao, and Pamela Hazelton. "An Investigation of the Efficiency of Fulvic Acid and Straw Water Amendments for Arsenic Uptake from Groundwater by Vetiveria zizanioides." Advanced Materials Research 864-867 (December 2013): 1233–39. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.1233.

Full text

Abstract:

The aim of the research was to investigate the efficiency of fulvic acid or straw water as an alternate amendment to chelating agents, to enhance the uptake of arsenic from groundwater by Vetiveria zizanioides. Fulvic acid and straw water were applied separately to arsenic-contaminated groundwater at different concentrations (0.1% and 0.01%). It was found that when the higher concentration (0.1%) of straw water was added to the groundwater solution, the efficiency of arsenic accumulation by roots was increased by 47.8%. Straw water not only enhanced the growth of Vetiveria zizanioides but also

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!