arsenic contamination News

  • Identifying areas at risk for arsenic contamination

    The contamination of groundwater with arsenic poses a risk to the health of millions of people, especially in the densely populated river deltas of Southeast Asia. To date, no method has been available for identifying high-risk areas without conducting costly sampling campaigns. Now, Eawag has developed a model that allows vulnerable areas to be pinpointed using existing data on geology and soil ...

  • Plastic bottles could clean arsenic-contaminated water

    Chopped up plastic bottles covered in a common chemical may be a simple and inexpensive method for removing arsenic from drinking water. A team of chemists at Monmouth University, United States, found that bits of plastic coated with cysteine, a common molecule found in foods, bind to arsenic. ...


    By SciDev.Net

  • Scientists suggest alternative source of arsenic contamination

    New research contradicts previous findings that arsenic contamination — an environmental crisis that affects more than 60 million people in the Bengal Basin — in groundwater may result from arsenic coming from man-made ponds, suggesting instead that it originates in sediments in aquifers. Groundwater ...


    By SciDev.Net

  • Ridding rice plantations of arsenic from contaminated groundwater

    Genetically engineered rice plants that resist the uptake of toxic metals could boost production and ease the shortage of this staple crop in Asia, India and Bangladesh, where irrigation with contaminated groundwater has created soils with toxic levels of arsenic. More than 80 percent of the world’s population depends on rice as a staple food, but production is dropping in the rice paddies of ...


  • Private U.S. Drinking Water Wells Contaminated with Arsenic and Other Harmful Elements

    Geologists with the U.S. Geological Survey (USGS) recently discovered that 13 percent of untreated drinking water contains at least one potentially dangerous element at a concentration exceeding federal regulations or guidelines, reports Scientific American. Researchers checked private wells for 24 trace elements and found that they taint more wells than other pollutants, such as pesticides and ...


    By EMSL Analytical, Inc.

  • Slag Containing Arsenic, Mercury, and Lead Contaminates Columbia River

    According to the Huffington Post, Teck Resources Ltd. has admitted that discharge from their smelter has polluted the Columbia River across the U.S. and Canada border for 100 years, from 1896 to 1995. The Columbia River is contaminated with slag containing arsenic, mercury, lead, and other metals left over after the company processed zinc at its smelter located near the river. Teck ...


    By EMSL Analytical, Inc.

  • Arsenic in groundwater: A world problem

    In April this year, the Netherlands National Committee of IAH released their latest publication (No.5) “Arsenic in Groundwater: A World Problem”. During the past two decades it has become apparent that arsenic poisoning from groundwater has become a worldwide problem. Some of the best-documented and most severe cases of arsenic contaminated groundwater have been found in aquifers in Asia (e.g. ...

  • Arsenic Removal Technology

    Onion Equipment provides an innovative, cost-effective and reliable approach for the safe removal of arsenic from contaminated sites, municipal water supplies and private wells. OEarsenX is a polymer based bead with hydrous iron oxide nano-particles impregnated throughout the bead. This advanced hybrid material combines the best arsenic-binding chemistry, arsenic selective chemistry of iron ...


    By Onion Enterprises

  • Cow dung a detox for arsenic sludge

    Bangladeshi scientists have found in cow dung an efficient agent to treat the toxic sludge that is generated by the removal of naturally-occurring arsenic in groundwater. "Microorganisms present in cow dung volatilise arsenic in the sludge," says Mohammad Azizur Rahman, research scientist at the geosciences centre of ...


    By SciDev.Net

  • Arsenic-free water for rural India

    High levels of arsenic in the groundwater in areas of northeast India and Bangladesh are a recognised public health problem. However, the Isolux Technologies Division of MEL Chemicals, Inc. teamed up with an Indian engineering firm in 2009 to supply 39 arsenic treatment systems customised to the requirements of rural Indian villages. Water supply in rural northeast areas of India and neighbouring ...

  • Arsenic poisoning from drinking water

    A study published in The Lancet this month calculated mortality rates associated with arsenic exposure from drinking water in a Bangladeshi population. Individual-level data was used to determine that 21.4% of all deaths and 23.5% of deaths associated with chronic disease in this population could be attributed to arsenic exposure. Millions of people worldwide are chronically exposed to arsenic ...

  • ION EXCHANGE TREATMENT PLANT ENDS NITRATE, ARSENIC, AND URANIUM CONTAMINATION PROBLEM FOR CITY`S DRINKING WATER

    The Purolite Company has announced the availability of a third-party technical case history that describes how theinstallation of a multi-contaminant-removal, ion exchange treatment plant for McCook, NE’s drinking water was specified and installed to end a 15-year old nitrate contamination problem that had increased in scope over the years to also include uranium and arsenic. The two-page ...


    By Purolite Corporation

  • Natural sediment may shield groundwater from arsenic

    Contamination of deep groundwater with arsenic from shallower sources may not be as serious as feared — if pumping deep water is limited to domestic use, a study has found. Exposure to arsenic-contaminated groundwater has been linked to almost one in every five deaths in Bangladesh, ...


    By SciDev.Net

  • New Range of Portable Arsenic Test Kits

    The new DigiPAsS and VisuPAsS systems from Palintest Ltd offer accurate, laboratory-standard testing in a portable field kit format. Both options use the well-established Gutzeit method to detect Arsenic levels in drinking water, up to and well beyond the WHO recommended maximum of 10 mg/l. The method used first converts all Arsenic in a sample to ...

  • Arsenic linked with one in five deaths in Bangladesh

    The first study to follow people exposed to arsenic in the long term has found that one in five deaths in Bangladesh could be attributed to drinking well water contaminated with the substance. Researchers found that long-term exposure, even to low levels of arsenic, through drinking water increases the mortality rate from a variety of diseases. "Up to one in five deaths could have been averted or ...


    By SciDev.Net

  • First accurate test for arsenic in soil developed

    If you have a cat or dog who likes to hide under the deck or children who play on equipment made with pressure-treated wood, you’ll be glad to hear that analytical chemist Julian Tyson and colleagues at the University of Massachusetts Amherst recently developed the first-ever accurate test for arsenic compounds in soil, promising a significantly improved environmental and health impact ...


    By ScienceDaily

  • Indian arsenic clean-up `working well`

    A new chemical-free method to remove arsenic from water is working well in pilot plants in India, scientists report. The method, developed by a team of European and Indian scientists, was tested in six plants set up to supply safe arsenic-free water to Kasimpore village in India's West Bengal state, one of the most arsenic-contaminated sites in the world. An estimated 140 million people in Asia ...


    By SciDev.Net

  • AdEdge Installs 100th System for Arsenic Removal

    Hampton Falls, NH -- AdEdge Technologies, Inc. installed its 100th small water system for arsenic and iron removal for the Lincoln Akerman School located in Hampton Falls, N.H. Adedge was selected in 2006 by the Hampton Falls School District to design, fabricate and install a full-scale AD26 arsenic, iron and manganese treatment system for the Lincoln Akerman School in Hampton Falls. The ...

  • Does the Chicken in Your Refrigerator Contain Arsenic?

    The last few weeks have been filled with media reports about the E. coli outbreak in Europe that has so far claimed 27 lives and sickened thousands.  Now the Food and Drug Administration (FDA) has announced that low levels of arsenic may be in some products that contain chicken meat.  According to the FDA, “Arsenic is in the environment as a naturally occurring substance or as a ...


    By EMSL Analytical, Inc.

  • Scientists identify genetic vulnerability to arsenic-related cancers

    People at greater risk of developing debilitating or fatal diseases related to arsenic exposure could be prioritised for treatment, following a study by Bangladeshi and US researchers. Exposure to arsenic through contaminated drinking water is a ...


    By SciDev.Net

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