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

  • 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 ...

  • 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

  • Continuous toxicity monitoring of wastewater

    Toxicity is the most common disturbance to biological treatment processes – especially for nitrification. The continuous toxicity monitoring proactively protects the waste water treatment plant and hence, secures to keep the plant running. LAR's online toxicity analyzer ...


    By LAR Process Analysers AG

  • Continuous Toxicity Monitoring

    The monitoring of water for unknown pollutants is of great importance, especially when surface water, drinking water or ground water are used. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity ...


    By LAR Process Analysers AG

  • 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 toxic algae poisoned river and two reservoirs in US

    A California Superior Court judge has invited the North Coast Regional Water Quality Control Board to exercise its authority to regulate water quality to rid the Klamath River of toxic algae. The ruling by Judge Elaine Rushing comes in a lawsuit filed by Klamath Riverkeeper, the Karuk Tribe, and the Pacific Coast Federation of Fishermen's Associations, PCFFA, against the board. The groups filed ...

  • 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 ...

  • 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.

  • 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.

  • Continuous toxicity monitoring in drinking water and groundwater is highly is recommended

    The monitoring of water for unknown pollutants is of great importance, especially when surface water, drinking water or groundwater are used. Since a variety of substances are harmful for human being reliable online monitoring is recommended. LAR's online toxicity ...


    By LAR Process Analysers AG

  • Modern Water’s toxicity monitor used for river clean-up research

    Modern Water plc (AIM:MWG), the owner of leading water technologies for the production of fresh water and monitoring of water quality, has collaborated with the University of Central Florida (UCF) to supply a Microtox® M500 toxicity monitor. The monitor will assist with research into advanced treatment techniques which could provide a solution to the removal of Total Phosphorus from the ...

  • 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 ...


  • US Congress announces ban on toxic chemicals

    The US Congress has sent President Bush legislation that will make toys safer for little tots and infants. The bill bans the use of six toxic chemicals, called phthalates, that are added to vinyl plastic to make it flexible. Thousands of our supporters wrote members of Congress to help overcome heavy lobbying by ExxonMobil who manufactures phthalates. The legislation will cover products made ...


    By Greenpeace International

  • 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 ...

  • Nanocoating on buildings releases potentially toxic particles to the air

    Weathering and abrasion are reported to cause titanium dioxide nanoparticles to escape from a self-cleaning coating for buildings. These particles may be toxic to humans and wildlife. The researchers have developed three indicators from the test results to help predict levels of nanoparticle release from these coatings. Photocatalytic coatings containing nano-sized particles of titanium dioxide ...

  • 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

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