water toxicity testing News

  • Testing ecological toxicity in rivers

    Water quality in rivers is commonly classified according to its physical and chemical properties, but this may not fully describe its biological health. Polish researchers have tested a new method of water assessment, which looks at the toxicity to organisms of not just water, but also sediment and floodplain soil samples. This provides a more complete picture of a river's health and may help ...

  • Determination of toxicity in water

    LAR's online analyzer ToxAlarm is a measuring system for the determination of toxicity in drinking and surface water. The analyzer contains a highly sensitive bacteria culture in a fermenter, which constantly and independently produces biomass. Since every water sample is tested with a small and fresh amount of bacteria, the risk of the entire bacteria culture within the analyzer being ...


    By LAR Process Analysers AG

  • Online Water Toxicity Monitoring

    Monitoring of water toxicity is of special importance, especially when surface water or ground water are used for the preparation of drinking water. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity analyzer ...


    By LAR Process Analysers AG

  • Continuous Toxicity Monitoring of Waste Water

    Toxicity is the most common disturbance to biological treatment processes – especially for nitrification. The continuous toxicity ...


    By LAR Process Analysers AG

  • Toxicity tests improve the assessment of harbour sediment quality

    Harbour sediments should be tested for their toxic effects on living organisms in addition to being subject to the chemical, physical and biological tests usually conducted to assess water quality, according to recent research from Portugal. This would provide a better environmental assessment of dredged material to help guide port authorities’ decisions on its disposal. Under the Water ...

  • EPA test results show mine spill unleashed highly toxic stew

    The U.S. Environmental Protection Agency announced Thursday that surface-water testing revealed very high levels of lead, arsenic, cadmium and other heavy metals as a sickly-yellow plume of mine waste flowed through Colorado. These metals far exceeded government exposure limits for aquatic life and humans in the hours after the August 5 spill, which sent 3 million gallons of wastewater through ...


    By Associated Press

  • Testing confirms US coastal waters less toxic than 20 years ago

    US environmental laws enacted in the 1970s are reducing overall contaminant levels in coastal waters of the United States, finds a 20 year study released today by scientists with the National Oceanic and Atmospheric Administration, NOAA. But the study shows continuing elevated levels of toxic metals and oils near urban and industrial areas of the coast. Oil related compounds from motor vehicles ...

  • Are Toxic Chemicals in Your Gardening Tools?

    Testing shows that many common gardening tools—including hoses, gloves, kneeling pads, shovels, and trowels—are contaminated with harmful chemicals, claims the nonprofit environmental group Ecology Center. CNN reports that the organization analyzed 200 popular gardening products and found that two-thirds of them contained significant levels of phthalates, bisphenol A (BPA), and lead. ...


    By EMSL Analytical, Inc.

  • BPA Labeled Toxic by Canadian Government

    EMSL Analytical provides bisphenol A (BPA) testing services to determine if the chemical is present in plastics or environmental samples to protect the public from exposure and health risks. Cinnaminson, NJ, October 19th, 2010 Last week the Canadian government classified bisphenol A as a toxic substance.  The material is used to make plastics and can be found in ...


    By EMSL Analytical, Inc.

  • Toxic algae blooming in warm water from California to Alaska

    A vast bloom of toxic algae off the West Coast is denser, more widespread and deeper than scientists feared even weeks ago, according to surveyors aboard a National Oceanic and Atmospheric Administration research vessel. This coastal ribbon of microscopic algae, up to 40 miles wide and 650 feet deep in places, is flourishing amid unusually warm Pacific Ocean temperatures. It now stretches from at ...


    By Associated Press

  • Manganese test

    A new high-range test for manganese in drinking water offers a measurement range of 0.02 to 5 mg/l, without the need for pre-test sample dilution. The test uses the approved standard Formaldoxime method (ISO 6333), and is supplied in packs containing two sets of tablets. One set of tablets is used to prepare the sample, correcting pH level, and the second tablet reacts with the manganese. The ...


  • Toxics Persist in Washington Rivers, Lakes and Fish

    OLYMPIA, Washington - Toxic chemicals banned decades ago continue to linger in the environment and concentrate in the food chain, threatening people and the environment, according to three recent studies by the Washington state Department of Ecology. The new data on toxic contaminants in freshwater fish and sediments add evidence to the state's push to reduce and eliminate the use of toxic ...

  • Decades after their Ban Toxic PCBs are Still a Threat

    The indoor air quality consulting experts at Future Environment Designs provide environmental testing solutions for polychlorinated biphenyls (PCBs).  Although no longer commercially produced in the United States, PCBs may still be present in products and materials produced before 1979.  PCBs belong to a broad family of man-made organic chemicals known as chlorinated hydrocarbons. ...


    By Cochrane & Associates, LLC

  • Nanoparticles interact with existing pollutants and make them more toxic

    Nanoscience and nanotechnology are relatively new, but already nanoparticles made from C60 (Buckminster fullerenes) are finding potential applications in consumer products ranging from car lubricants to cosmetics and medicines. New research suggests that nanoparticles, when released into water systems, may interact with other common pollutants in aquatic environments with important consequences ...

  • California sues `natural` companies over toxic chemical in soaps

    California Attorney General Edmund G. Brown Jr. has filed a lawsuit against companies that manufacture or distribute body care and household cleaning products that have tested highest for the carcinogenic chemical 1,4-dioxane. The lawsuit was filed May 29 in the Alameda County Superior Court.  Named as defendants are Avalon Natural Products, which makes the Alba brand products; Beaumont Products ...

  • Toxic cargo in sunken ship remains intact say specialists

    UN and EU specialists brought in to help Philippine authorities retrieve toxic cargo from a sunken passenger ferry have not detected any leaks or oil spills emanating from the doomed vessel, according to a UN relief official. They gathered water samplings for chemical tests and are now preparing a final report for the Philippine government's special task force on the Princess of the Stars, said ...


    By IRIN

  • Toxic makeup - cosmetics women wear prove dangerous to health

    Cosmetic products that Canadians put on their faces every day have been found to contain toxic heavy metals, such as lead, arsenic, and cadmium, according to a report released today by Environmental Defence. In a lab test of the products in six Canadian women's makeup bags, each of the 49 products was found to be contaminated with heavy metals and some products contained levels of arsenic and ...


    By GLOBE SERIES

  • Additives in Aircraft De-Icers Make Them More Toxic

    WASHINGTON, DC (ENS) - The U.S. Geological Survey, USGS, has been examining the relative toxicity to aquatic life from chemicals used to remove or prevent dangerous ice buildup on aircraft. Not the basic chemicals for ice removal or prevention, but proprietary chemicals added by manufacturers are responsible for the toxicity they observed, agency researchers said after comparing ...

  • Gold Mines Fined over $600k for Failing to Correctly Report Toxic Chemical Releases

    The Emergency Planning and Community Right-to-Know Act (EPCRA) created the Toxics Release Inventory (TRI) Program. Under the requirements of EPCRA, all U.S. facilities that meet TRI reporting criteria must submit TRI data to the EPA and the states in which they are located by July 1st of each year. One of EPCRA's primary purposes is to inform citizens of toxic chemical ...


    By EMSL Analytical, Inc.

  • ASTM D3651 - 11 standard test method for barium in brackish water, seawater, and brines

    Since water containing acid-soluble barium compounds is known to be toxic, this test method serves the useful purpose of determining the barium in brackish water, seawater, and brines. 1. Scope 1.1 This test method covers the determination of soluble barium ion in brackish water, sea-water, and brines by atomic absorption spectrophotometry. 1.2 The actual working ...


    By ASTM International

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