ABOUT

Solutions & Cases

Our Case
  • Arsenic contamination, effects and remediation

    2021-4-1 · Arsenic (As), the 20th most abundant element, has become a worldwide concern . As is mostly associated with igneous and sedimentary rocks, particularly sulfidic ores . Natural phenomena for instance weathering, biological and volcanic activity, along with anthropogenic activities (such as mining, fossil fuels burning, pesticide and herbicide application and crop desiccants) are responsible for the

  • Arsenic contamination, consequences and

    2015-2-1 · In poultry, use of arsenic compounds is very common. For instance, arsenic is used in the forms of roxarsone as an additive in the feed of conventionally-raised broilers. It is used to control protozoan parasites known as coccidians and to enhance weight gain (Miller et al., 2000) Feeding arsenic to laying hens is prohibited. Organic regulations prohibit feeding arsenic to birds raised for organic

  • Arsenic contamination of groundwater: A global

    2021-5-1 · Arsenic and its compounds are widely used in agriculture, livestock feed, medicine, electronics, metallurgy, chemical warfare agents etc. Arsenic is of interest in terms of environmental issues and health impacts. Rock-water interactions in aquifer systems are the major cause of release of arsenic and causes deterioration in groundwater quality.

  • ARSENIC CONTAMINATION OF GROUNDWATER

    Groundwater can be contaminated with arsenic from a variety of sources, such as pesticides, wood preservatives, glass manufacture, and other miscella-neous uses of arsenic. These sources can be monitored and controlled. However, the contamination from naturally occurring arsenic in the ground is difficult to control.

  • Arsenic contamination of soils and agricultural plants

    2008-9-1 · Besides these, arsenic containing water, used for irrigation in agricultural land, is also a source of arsenic contamination in soil. Soil contamination by arsenic, due to highly contaminated irrigation water, and its carryover effect to plants have been reported in Bangladesh and India ( Ali et al., 2003,Roychowdhury et al., 2003 ).

  • (PDF) Arsenic Pollution Sources ResearchGate

    Arsenic sulfides, arsenic-rich pyrite, a nd arsenic-rich iron oxyhydroxides are the most commonly found natural sources of arsenic contamination in groundwater worldwide.

  • ARSENIC CONTAMINATION IN Harvard University

    2003-7-8 · Groundwater is also used extensively for crop irrigation in the arsenic belt of West Bengal, and elevated arsenic levels in groundwater-irrigated soils are now well documented. Arsenic uptake by crop plants grown in soils contaminated with high concentrations of arsenic, and irrigated with arsenic-contaminated groundwater has also been reported (ICAR 2001; Abedin et al., 2002).

  • Assessment of mining activity on arsenic

    2020-6-15 · One way to approximate a differentiation between natural and anthropogenic sources of arsenic enrichment is the use of environmental risk indexes (e.g., geoaccumulation index, enrichment factor, and contamination factor) (Gbolo and Lopez, 2015; Mondal et al., 2018; Pignotti et al., 2018). To fully characterize the risk associated with arsenic-rich environments, the interaction between arsenic

  • Arsenic Contamination in Groundwater in Vietnam: An

    2020-10-13 · Arsenic Contamination in Groundwater in Vietnam: An Overview and Analysis of the Historical, Cultural, Economic, and Political Parameters in the Success of Various Mitigation Options Thuy M. Ly Pomona College This Open Access Senior Thesis is brought to you for free and open access by the Pomona Student Scholarship at Scholarship @ Claremont

  • Origin of arsenic in Bangladesh groundwater

    Twenty years ago, Smith and colleagues described groundwater arsenic (As) contamination in Bangladesh as the "largest mass poisoning of a population in history." An estimated 60 million people were unknowingly drinking groundwater containing dangerous concentrations of naturally occurring As. Today, despite a much-improved well water testing effort, an estimated 30–35 million are still

  • Arsenic Contamination in Soil and Sediment in India

    2017-8-24 · Arsenic Contamination in Soil and Sediment in India: Sources, Effects, and Remediation Anamika Shrivastava & Devanita Ghosh & Ayusman Dash & Suatapa Bose Published online: 24 March 2015 # Springer International Publishing AG 2015 Abstract Arsenic contamination is turning out to be a major problem these days with its area coverage and the number of

  • Detection of Arsenic Contamination in Drinking Water

    2018-11-24 · Modern arsenic detecting kit and simple color sensor have been used for developing the system. Some sample of water was collected from different region of Khulna, Bangladesh to measure the percentage of arsenic contamination. The data was recorded and analyzed to verify the system.

  • Sources of Arsenic Exposure Toxno

    2018-6-18 · At the time Arsenic was used with the prickly pear eradication program. In 2004 an ABC report said that the Sundown mining area near Stanthorpe was to be checked for toxic material, including arsenic, as part of a program rehabilitating old mines.The survey is being undertaken by the Department of Natural Resources and the University of

  • ARSENIC CONTAMINATED SOIL DHSS

    2013-9-24 · arsenic or pesticides were once used may be exposed. You could be exposed to arsenic in soil through: Touching soil that contains arsenic, by digging or playing in the soil. Eating soil that contains arsenic. Children may eat dirt while playing. Drinking water contaminated from

  • ARSENIC CONTAMINATION IN Harvard University

    2003-7-8 · Arsenic contamination of groundwater in the Gangetic alluvial zones of West Bengal has assumed the proportion of a drinking water-related disaster in recent years with reports of arsenic related health hazards for millions of people. As many as 75 blocks in 9 districts covering an area of 38865 km2 are reported to be severely affected

  • Arsenic National Pesticide Information Center

    2021-3-10 · Arsenic. Arsenic is a naturally occurring element that is widely distributed in soils and minerals. Humans are regularly exposed to small amounts of arsenic in the air we breathe, the water we drink and the plants we eat. Arsenic is used as a pesticide primarily to preserve wood from rot and decay. In the past, arsenic was also used in rat

  • Arsenic contamination of lake sediments in Florida

    2010-2-9 · Arsenic contamination of Florida’s aquifers is a serious concern because groundwaters provide [90% of the state’s drinking water supply (Florida DEP 2002). Inorganic As occurs in several forms in soils, sediments, and water. Arsenate [As(V)] dominates in

  • Arsenic and Drinking Water USGS

    2021-5-4 · Arsenic concentrations from 20 450 domestic wells in the U.S. were used to develop a logistic regression model of the probability of having arsenic >10 μg/L (“high arsenic”), which is presented at the county, state, and national scales. Variables representing geologic sources, geochemical, hydrologic, and physical features were among the...