drinking water toxin News

  • EPA plans new toxin guidelines for drinking water

    The U.S. Environmental Protection Agency plans to come out with new guidelines that will give cities and water treatment plants a blueprint for dealing with the type of algae-borne toxin that contaminated the drinking water in Ohio's fourth-largest city, a federal official said Wednesday. A new health advisory is on target to be finalized sometime next spring, said Peter Grevatt, director of the ...


    By Associated Press

  • Protozoa detect water toxins

    Woods Hole Oceanographic Institution (WHOI) biologist Scott Gallager has grand plans for his revolutionary Swimming Behavioural Spectrophotometer (SBS), which employs one-celled protozoa to detect toxins in water sources. The SBS has been selected as a 2010 ‘Better World\' technology by the Association of University Technology Managers. This success story was actually a concept which the US ...


  • Cholera toxin nanoparticle detector

    A complex sugar may become one of the most effective weapons to stop the spread of cholera, a disease that has claimed thousands of lives in Haiti since the devastating earthquake last year. A technique developed by University of Central Florida scientists would allow relief workers to test water sources for contamination with the cholera toxin. In the test, the sugar dextran is coated onto iron ...


  • Cheap paper nano-sensor detects water toxins

    Scientists have used nanotechnology to turn paper into a sensor that can detect toxins in drinking water. The China–US team dipped normal filter paper into a solution containing carbon nanotubes — which can conduct electricity — and antibodies to microcystin-LR, a common and dangerous toxin. They dried the paper and repeated the process until enough nanotubes were present to render it ...


    By SciDev.Net

  • Plants provide ‘green liver’ by removing water toxins

    Blue-green algae, or ‘aquatic cyanobacteria’, can produce harmful toxins and present a serious health hazard when they bloom in large numbers. Researchers from Germany have now identified plant species that could be used to sustainably treat water by removing such cyanobacterial toxins. Cyanobacteria are common in water bodies with high nutrient load. Some cyanobacteria can ...

  • Modified plant clears up deadly water toxin

    Plants may be a useful tool in clearing water of harmful toxins produced by blue-green algae, new research indicates. Some blue-green algae (cyanobacteria) — which grow in warm, nutrient-rich waters  — produce toxins that can severely damage the liver or nervous system. The effects of the toxins range from a mild illness to rapid death. They can remain in water supplies after the algae have been ...


    By SciDev.Net

  • EPA Issues Health Advisories to Protect Americans from Algal Toxins in Drinking Water

    The U.S. Environmental Protection Agency (EPA) today issued health advisory values that states and utilities can use to protect Americans from elevated levels of algal toxins in drinking water. Algal blooms in rivers, lakes, and bays sometimes produce harmful toxins. Because utilities often use these water bodies as sources of drinking water, EPA has determined algal toxin levels in tap water ...

  • Toledo warns residents not to drink the water

    About 400,000 people in and around Ohio's fourth-largest city were warned Saturday not to drink its water after tests revealed the presence of a toxin possibly from algae on Lake Erie. Concerned residents of the Toledo area descended on city stores, buying carts full of bottled water, bags of ice and flavored water and emptying shelves within hours of the advisory, which was issued ...


    By Associated Press

  • U.S. EPA launches investigation into toxins and stressors impacting fish in the bay-delta

    The U.S. Environmental Protection Agency will today take action on an Advanced Notice of Proposed Rulemaking (ANPR) seeking public input on the effectiveness of current water quality programs influencing the health of the San Francisco Bay Delta Estuary.  The ANPR identifies pivotal water quality issues affecting Bay Delta fisheries, describes regulatory measures currently underway, and ...

  • Public comment sought on US drinking water contaminants

    The US EPA is asking for public comment on a list of 104 possible drinking water contaminants that may need to be regulated in the future to ensure the continued protection of drinking water. Under the Safe Drinking Water Act, EPA includes on the draft Contaminant Candidate List (CCL) currently unregulated contaminants that are known or anticipated to occur in public water systems and which may ...

  • EPA announces safe drinking water research

    Let's raise our water glasses and toast to America's health! Water is essential to life, and one of EPA's highest priorities is ensuring America has drinking water safe from pathogens and other waterborne contaminants. Today, EPA announced the award of $3.6 million in research grants to four universities, one non-profit, and one research institute to improve the detection of known and emerging ...

  • Permanganate Index and Oxidizability for Source and Treated Drinking Waters

    What is permanganate index? The permanganate index is an assessment of water quality typically used for freshwater and treated drinking waters. It involves the determination of oxidizability, also known as oxygen (O2) demand, by potassium permanganate (ISO method 8467). This is the method prescribed in the European Union ...


    By MANTECH Inc.

  • Specialists remove hazardous toxins from one of the most contaminated soil & groundwater sites in US

    The U.S. Environmental Protection Agency and Shell Oil Company have removed more than 23,000 pounds of hazardous toxins from the Del Amo Superfund Site Waste Pits near Torrance, Calif. With EPA oversight, responsible parties Shell Oil Company and the U.S. General Services Administration built a soil vapor extraction system at the Del Amo Waste Pits and have been successfully operating it for one ...

  • New EPA list of drinking water contaminants for regulatory consideration

    EPA is releasing its third list of drinking water contaminants that are known or anticipated to occur in public water systems and may require regulation. EPA will continue to evaluate and collect data on the contaminants, and determine by 2013 for some of them whether or not to propose drinking water regulations. The contaminant candidate list (CCL 3) includes 104 chemical contaminants or groups ...

  • LG Sonic and EPM continue cooperation to treat drinking water

    LG Sonic and Empresas Publicas de Medellin (EPM) continue to cooperate to treat algae growth in drinking water reservoirs with two new MPC-Buoy projects to be installed in the coming week. In 2015, 8 MPC-Buoy systems were installed in drinking water reservoir Embalse la Fe to monitor and control algal blooms. High temperatures and nutrient overload are favorable conditions for algae to bloom, ...


    By LG Sonic

  • TECHNEAU challenges the ability of traditional drinking water supply systems

    Welcome to the eighth issue of the TECHNEAU Newsletter. The newsletter is designed to disseminate news, scientific results and developments to stakeholders. Newsletters are issued every six months, with Newsletter 9 scheduled for June 2010. TECHNEAU challenges the ability of traditional drinking water supply systems to cope with present and future global threats and opportunities. TECHNEAU will ...


  • Why need to drink hydrogen water and where can buy hydrogen water generator

    Olansi Healthcare Co., Ltd (Olansi Healthcare Co., Ltd, Guangzhou Olans Water Treatment Equipments Co., Ltd, and Guangzhou Zenfly Environmental Protection Equipment Co.,Ltd these three factory all belongs to our President Mr. Peng Wei) is a professional manufacturer of hydrogen water bottle, ...


    By Olansi healthcare Co., Ltd

  • California Department of Public Health fails to set safe drinking water standard for hexavalent chromium

    The California Department of Public Health today announced a proposal to set hexavalent chromium’s “Maximum Contaminant Level” – the maximum concentration of a chemical that is allowed in public drinking water systems – at 10 parts per billion. This level is 500 times higher than the level identified as safe by the California Environmental Protection Agency. The ...

  • Court Requires California to Set Final Drinking Water Standard for Hexavalent Chromium by June 2014

    The California Superior Court of Alameda County ruled that the California Department of Public Health must issue a final drinking water standard for hexavalent chromium no later than June 15, 2014. The decision released on Friday comes after the Natural Resources Defense Council and the Environmental Working Group sued the agency for delaying action necessary to protect millions of Californians ...

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