toxicity testing News

  • Testing the toxicity of nanomaterials

    When the properties of materials are not fully understood, as with nanomaterials, how can they be adequately tested? A new study has found that two commonly-manufactured nanomaterials can damage human DNA. This highlights the need to evaluate the risks they might pose and design appropriate safety tests. Materials that damage DNA can cause human cells to mutate, which can eventually lead to ...

  • 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 ...

  • New robot system to test 10,000 chemicals for toxicity

    Several federal agencies, including the National Institutes of Health, today unveiled a new high-speed robot screening system that will test 10,000 different chemicals for potential toxicity. The system marks the beginning of a new phase of an ongoing collaboration, referred to as Tox21, that is working to protect human health by improving how chemicals are tested in the United States. The robot ...

  • New robot system to test 10,000 chemicals for toxicity

    Several federal agencies, including the National Institutes of Health, today unveiled a new high-speed robot screening system that will test 10,000 different chemicals for potential toxicity. The system marks the beginning of a new phase of an ongoing collaboration, referred to as Tox21, that is working to protect human health by improving how chemicals are tested in the United States. The robot ...

  • New Robot system to test 10,000 chemicals for toxicity

    Several federal agencies have unveiled a new high-speed robot screening system that will test 10,000 different chemicals for potential toxicity. The system marks the beginning of a new phase of an ongoing collaboration, referred to as Tox21, that is working to protect people’s health by improving how chemicals are tested in this country. The robot system, which is located at the National ...

  • 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 ...

  • TOXmini : Toxicity testing system for lab and field applications

    The TOXmini is a portable luminometer for the measurement of biological and chemical luminescence reactions with relatively constant light emission. As a mobile test system with a high sensitive detector (Ultra Fast Single Photon Counter) the TOXmini is suitable for a wide range of applications. In accordance with the defined threshold values, the results could be classified and indicated by the ...

  • 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

  • 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

  • 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

  • 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

  • ‘Bonfire party’ was toxic

    Piles of waste were stored and then burnt at an illegal site close to the Norfolk to London railway line in Suffolk and today (Thursday 29 August) the man responsible was fined £28,000 by Norwich Magistrates’ Court. The court heard that Ian Dale Garnham (44) illegally stockpiled waste and then set fire to it at The Woodyard in Upper Rose Lane, Palgrave, Diss, between 3 and 6 November ...

  • EPA considering new toxicity testing and environmental sampling for BPA

    Following a BPA Action Plan announced in March 2010, the U.S. Environmental Protection Agency (EPA) is requesting public comment on possible toxicity testing and environmental sampling to study BPA’s potential environmental impacts. BPA has been shown to cause reproductive and developmental effects in animal studies. This action is part of Administrator Lisa P. Jackson’s comprehensive ...

  • 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 ...

  • 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 ...

  • High speed robots to replace animal testing of toxic chemicals

    Fewer laboratory animals will be used to test the safety of chemicals such as pesticides and household cleaners under a new agreement announced jointly by the National Institutes of Health, NIH, and the U.S. Environmental Protection Agency, EPA. Currently, data collection to determine chemical toxicity currently relies on live animal tests. Researchers expose an animal, such as a mouse, to a ...

  • EPA releases second phase of toxicity testing data for eight oil dispersants

    The US Environmental Protection Agency today released peer reviewed results from the second phase of its independent toxicity testing on mixtures of eight oil dispersants with Louisiana Sweet Crude Oil. EPA conducted the tests as part of an effort to ensure that EPA decisions remain grounded in the best available science and data. EPA’s results indicate that the eight dispersants tested ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you