toxicity measurement News

  • Portable Workplace Detector for Trace Toxic Chemicals

    ENMET's new mGC (mini Gas Chromatograph) chemical specific portable instrument is designed to detect threat chemicals below the OSHA permissible exposure limits in the industrial workplace for worker safety. This handheld monitor improves information collected from traditional multi-gas survey instruments by providing details about the chemical composition of the sample. It ...


    By ENMET, LLC

  • Paris takes drastic measures to fight toxic smog

    Paris imposed drastic measures Monday to combat its worst air pollution in years, banning around half of the city's cars and trucks from its streets in an attempt to reduce the toxic smog that's shrouded the City of Light for more than a week. Cars with even-numbered license plates are prohibited from driving in Paris and its suburbs, ...


    By Associated Press

  • 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 ...

  • 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

  • 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

    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

  • 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 ...

  • Pesticide endosulfan ruled “highly toxic”

    An international scientific review committee ruled last week that endosulfan, a widely used pesticide, is highly toxic to humans and wildlife. The ruling concludes debate on whether the chemical should be classified as a persistent organic pollutant (POP), a decision that could result in a global ban. 'Thankfully the science - rather than political and economic interests - has been at the fore, ...


    By Worldwatch Institute

  • Strong Sorption of Toxic Chemicals to Nanoplastics

    Nanoplastics adsorb toxic chemicals up to 100 times stronger than microplastics. This follows from recent research at IMARES and the Aquatic Ecology and Water Quality Management group. PhD student Ilona Velzeboer measured the adsorption of toxic chemicals to microplastics, nanoplastics, and other nanoparticles such as carbon nanotubes and fullerenes. This way, a good comparison with the ...

  • Government finally acts on toxic Bisphenol A

    The government of Canada is prepared to declare that Bisphenol A (BPA), a chemical commonly found in plastic baby bottles, reusable water bottles and the lining of some food cans should be classified as "toxic" under Canadian law. Although it is a bold move, the government is lagging behind business, where many have already removed BPA products from their shelves. The government has ...


    By GLOBE Foundation

  • Pelletized manure reduces Toxic runoff

    There is considerable amount of uncertainty concerning the environmental impacts that animal hormones have on surface water. Higher concentrations of hormones in waterways have been found to cause physiological and sexual impairment in fish and other aquatic species. However, a study from the University of Delaware that examined estrogen concentrations runoff from agricultural fields fertilized ...

  • ASTM D4490 - 96(2011) standard practice for measuring the concentration of toxic gases or vapors using detector tubes

    The Federal Occupational Safety and Health Administration, in 29 CFR 1910, designates that certain gases and vapors must not be present in workplace atmospheres at concentrations above specific values. This practice will provide a means for the determination of airborne concentrations of certain gases and vapors given in 29 CFR 1910. A partial list of chemicals for which this practice is ...


    By ASTM International

  • OSHA data detail workplace toxic chemical exposure

    OSHA has released 15 years of data providing details of workers" on-the-job exposures to toxic chemicals. The data are measurements taken by OSHA compliance officers during the course of inspections. They include exposures to asbestos, benzene, beryllium, cadmium, lead, nickel, silica, and others. The data offer insights into the levels of toxic chemicals commonly found in workplaces, as well as ...


    By The Compliance Center (ICC)

  • Midwest`s postflood risk: toxic basements

    The oil, gasoline, fertilizers, and herbicides swept away by floodwaters in June pose an environmental challenge to the rain-soaked Midwest. But some of the most serious pollution problems may not lie outdoors. Instead, they could well lurk indoors in waterlogged basements and first floors of homes and businesses, where everything from cleaning agents to toxic metals accumulate in silt and mold. ...


    By Axcess News

  • NC legislators approve regulating toxic coal ash

    North Carolina lawmakers have approved legislation they say makes the state the nation's first to address decades of toxic water pollution from residue left behind by coal-burning electricity plants. The General Assembly on Wednesday approved legislation addressing the problem unmasked six months ago when a coal ash spill from a Duke Energy ...


    By Associated Press

  • 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 ...

  • Rush and Waxman release toxic chemicals safety act

    On July 22, U.S. Rep. Bobby L. Rush, chair of the Subcommittee on Commerce, Trade, and Consumer Protection, and Rep. Henry A. Waxman, chair of the Committee on Energy and Commerce, introduced H.R. 5820, the Toxic Chemicals Safety Act of 2010 (pdf). “The introduction of this legislation marks a major step ...


    By The Compliance Center (ICC)

  • OEHHA Proposes Regulations Concerning Toxics Information Clearinghouse

    On December 17, 2010, the California Office of Environmental Health Hazard Assessment (OEHHA) issued proposed regulations that would specify hazard traits, environmental and toxicological endpoints, and other relevant data that are to be included in the Toxics Information Clearinghouse (Clearinghouse) the California Department of Toxic Substances Control (CDTSC) will develop. CDTSC will use ...


    By Acta Group

  • OEHHA proposes regulations concerning toxics information clearinghouse

    On December 17, 2010, the California Office of Environmental Health Hazard Assessment (OEHHA) issued proposed regulations that would specify hazard traits, environmental and toxicological endpoints, and other relevant data that are to be included in the Toxics Information Clearinghouse (Clearinghouse) the California Department of Toxic Substances Control (CDTSC) will develop. CDTSC will use ...


    By Acta Group

  • OEHHA Proposes Regulations Concerning Toxics Information Clearinghouse

    On December 17, 2010, the California Office of Environmental Health Hazard Assessment (OEHHA) issued proposed regulations that would specify hazard traits, environmental and toxicological endpoints, and other relevant data that are to be included in the Toxics Information Clearinghouse (Clearinghouse) the California Department of Toxic Substances Control (CDTSC) will develop. CDTSC will use ...


    By Bergeson & Campbell, P.C.

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