arsenic level Articles

  • A Trace of Arsenic

    The cans of baby formula invaded Brian Jackson’s Dartmouth College lab late in 2010. His team picked up an armful of popular brands at the food co-op in Hanover, N.H. Then another armload. Eventually Jackson had a cabinet full of the brightly labeled canisters. Today, he still keeps a few in his office. Not as clutter — that’s not his style. He just likes to keep his toxicology ...


    By Freytech Inc.

  • Arsenic Removal

    The Arsenic Removal ProcessArsenic, a naturally occurring element, is found throughout the environment; for most people, food is the major source of exposure. Acute (short-term) high-level inhalation exposure to arsenic dust or fumes has resulted in gastrointestinal effects (nausea, diarrhea, abdominal pain); central and peripheral nervous system disorders have occurred in workers acutely ...


  • Efficacy of arsenic filtration by Kanchan Arsenic Filter in Nepal

    Groundwater arsenic contamination has caused a significant public health burden in lowland regions of Nepal. For arsenic mitigation purposes, the Kanchan Arsenic Filter (KAF) was developed and validated for use in 2003 after pilot studies showed its effectiveness in removing arsenic. However, its efficacy in field conditions operating for a long period has been scarcely observed. In this study, ...


    By IWA Publishing

  • Arsenic in Bangladesh and Perth

    This study details the the Arsenic problem in ground water from Bangladesh and how the PDV6000plus can be used to monitor the Arsenic levels in ground water wells. Contains comparison data with inductively coupled plasma mass spectrometer (ICPMS) for groundwater samples in Perth, Western ...

  • Arsenic Treatment-Michigan

    In May, 2003, upon approval by the County Health Department, Adedge Technologies in conjunction with its Michigan representative Artesian, Inc. installed the first arsenic treatment system for a Type II non-transient, noncommunity (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) system was installed at an elementary school serving 600 students to reduce naturally ...

  • Arsenic Treatment-Michigan

    In May, 2003, upon approval by the County Health Department, Adedge Technologies in conjunction with its Michigan representative Artesian, Inc. installed the first arsenic treatment system for a Type II non-transient, noncommunity (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) system was installed at an elementary school serving 600 students to reduce naturally ...

  • Former Raritan Arsenal

    Edison, New Jersey, USA Project Bioremediation of TNT & DNT in Homogenized Soil Summary DARAMEND® bioremediation technology was applied at pilot scale to approximately 100 tons of soil from the former Raritan Arsenal in Edison, New Jersey. Area 4 at the Raritan Arsenal was formerly used as a high explosives salvage and melt-out area from World War I ...


  • Groundwater arsenic in Chimaltenango, Guatemala

    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 ...


    By IWA Publishing

  • USEPA Arsenic Demonstration Project - Stewart, Minnesota - Arsenic and Iron Treatment System

    AdEdge Technologies Inc. (AdEdge) was selected in 2004 by the U.S. EPA as part of the Round 2 Arsenic Demonstration Program to implement full scale arsenic treatment for the city of Stewart, Minnesota. This public water system serves a community of approximately 600 people with average daily demand of 60,000 gallons per day. AdEdge was selected from the proposed alternatives by the host site and ...

  • The danger of arsenic in water and the technology to end with it

    AZUD has developed a technology that saves lives: the water purifiers plants AZUD DW DU are the perfect solution for arsenic removal using ultrafiltration membranes. In Latin America, AZUD DW DW supplies drinking water to decentralized villages that used to consume arsenic contaminated water. In ihe last two decades, in some countries of Latin America, people have consumed double the arsenic ...


    By Sistema Azud, S.A.

  • Project profile - arsenic treatment-Michigan

    Background In May, 2003, upon approval by the County Health Department, Adedge Technologies installed the first arsenic treatment system for a Type II nontransient, non-community (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) modular system was installed at an elementary school serving 600 students to reduce naturally occurring arsenic to meet the new EPA ...

  • Treatment of Arsenic Contaminated Industrial Wastewaters

    Arsenic in industrial wastewater effluents is attracting greater regulatory attention. Depending on factors such as total maximum daily loads (TMDLs), the National Pollutant Discharge Elimination System (NPDES) discharge permit levels for arsenic may even be less than the drinking water standard of 10 µg/L. One of the industries affected by stringent arsenic discharge limits is coal-fired power ...

  • Executive Summary of Arsenic Contamination in the World

    Annex 1 is an ancillary summary database which provides supplementary material to Table 1 in the Executive Summary of Murcott:  Arsenic Contamination in the World: An International Sourcebook.  Table 1 is entitled Arsenic Contamination in the World  and summarizes the exposed populations, the current arsenic standards and the sources of arsenic for each of the 105 identified ...


    By IWA Publishing

  • Monitoring Arsenic in discharges from a remediation site

    This case study describes the application of an OVA5000 at a USEPA Superfund site where high levels of arsenic contamination have ...

  • The effectiveness of arsenic remediation from groundwater in a private home

    Abstract Private wells are the source of drinking water for approximately 15% of households in the United States, but these wells are not regulated or monitored by government agencies. The well waters can contain arsenic, a known carcinogen that occurs in groundwater throughout the nation at concentrations that can exceed the Maximum Contaminant Level defined by the U.S. Environmental ...

  • Arsenic geochemistry in a biostimulated aquifer: An aqueous speciation study

    Stimulating microbial growth through the use of acetate injection wells at the former uranium mill site in Rifle, Colorado, USA, has been shown to decrease dissolved uranium (VI) concentrations through bacterial reduction to immobile uranium (IV). Bioreduction also changed the redox chemistry of site groundwater, altering the mobility of several other redox‐sensitive elements present in the ...


    By John Wiley & Sons, Ltd.

  • Accumulation and toxicity of monophenyl arsenicals in rat endothelial cells

    Clark 1 (diphenylarsine chloride) and Clark 2 (diphenylarsine cyanide) were used as chemical weapon agents (CWA), and the soil contamination by these CWA and their degraded products, diphenyl and phenyl arsenicals, has been one of the most serious environmental issues. In a series of comparisons in toxicity between trivalent and pentavalent arsenicals we investigated differences in the ...


    By Springer

  • EPA Arsenic Treatment Demonstration - Rollinsford, New Hampshire

    In mid 2003, AdEdge was awarded 3 Arsenic Treatment Demonstration Projects with EPA. Implementation began in September, 2003 following approvals of the engineering submittals and permit by the New Hampshire Department of Environmental Services. Upon completion of construction of the new treatment building by the city of Rollinsford, AdEdge Technologies installed the 100 gpm APU arsenic treatment ...

  • Ultra-trace arsenic speciation at Columbia Analytical

    Ultra-trace speciation of arsenic and other metals is performed using a variety of techniques tailored to the specific combination of species, matrix, and detection limits required. Currently, two analytical systems are applied: Ion Chromatography-Inductively Coupled Mass Spectrometry (IC-ICP-MS) and Hydride Generation-Cryogenic Gas Chromatography-Flame Atomic Absorption Spectrometry ...


  • EPA Arsenic Treatment Demonstration - Rimrock, Arizona

    In mid 2003, AdEdge was selected to implement 3 full scale Arsenic Treatment Demonstration Projects with EPA using its granular ferric oxide technology. At the Rimrock location, implementation began in September, 2003 includingengineering submittals and permitting by the Arizona Department of Environmental Quality (ADEQ). Upon completing site preparations and construction in early March, AdEdge ...

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