water toxicity test 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 ...

  • 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 ...

  • Toxic plume spreading at defense plant, tests show

    A decades-long toxic cleanup around the former aerospace plant that helped land a man on the moon is getting renewed scrutiny after groundwater tests showed a potential carcinogen spreading deeper and toward nearby Long Island communities. Officials revealed this month that the 4.5 mile by 3.5 mile plume of underground contamination in Bethpage is moving deeper than ever. High concentrations of ...


    By Associated Press

  • 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

  • Computing toxic chemicals

    A new computational method for working out in advance whether a chemical will be toxic will be reporting in a forthcoming issue of the International Journal of Data Mining and Bioinformatics. There is increasing pressure on the chemical and related industries to ensure that their products comply with increasing numbers of safety regulations. Providing regulators, intermediary users and consumers ...


    By Inderscience Publishers

  • 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 ...

  • Cleansing toxic waste – with vinegar

    Engineers and environmental scientists at the University of Leeds are developing methods of helping contaminated water to clean itself by adding simple organic chemicals such as vinegar. The harmful chromium compounds found in the groundwater at sites receiving waste from former textiles factories, smelters, and tanneries have been linked to cancer, and excessive exposure can lead to problems ...


    By University of Leeds

  • 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

  • Can more toxicity tests improve environmental protection standards?

    New research has investigated the effect of increasing the number of toxicity tests on Environmental Quality Standards (EQSs). Case study results suggest that an additional test can reduce costs without impairing the regulatory protection levels. An Environmental Quality Standard (EQS) defines the maximum safe concentration of a potentially hazardous chemical in air or water. EQSs are used to ...

  • 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 ...

  • Methamphetamine Production Creates Toxic Environments

    EMSL Analytical provides chemical testing solutions to ensure safe outdoor and indoor air quality (IAQ) for building occupants after meth labs have been discovered. Cinnaminson, NJ, September 16th, 2010 Earlier this week the Alabama District Attorneys Association completed their 2010 Methamphetamine Summit.  Discussed at the conference was the damage that meth use ...


    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.

  • 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 ...

  • Modern Water Installs First Microtox® Continuous Toxicity Monitor in the USA

    Modern Water plc (AIM:MWG), the owner of leading water technologies for the production of fresh water and monitoring of water quality, has recently launched an updated continuous toxicity monitor using its well-known Microtox® technology. Demand for this ground-breaking monitor has been high with the first unit being installed just after its launch at one of Aqua America, Inc.’s water ...

  • 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 ...

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