• Researchers highlight problem of legacy mercury in the environment

    Researchers have published evidence that significant reductions in mercury emissions will be necessary just to stabilize current levels of the toxic element in the environment. So much mercury persists in surface reservoirs (soil, air, and water) from past pollution, going back thousands of years, that it will continue to persist in the ocean and accumulate in fish for decades to centuries, they report.

  • Rapid, on-site detection of illegal cooking oils

    In recent years, illegal cooking oil incident in China caused serious food safety risks. Researchers have developed two rapid and convenient colorimetric detection methods of illegal cooking oils based on phase transfer technology.

  • New microfluidic chip useful in counterterrorism, water and food safety

    A new process for making a three-dimensional microstructure that can be used in the analysis of cells could prove useful in counterterrorism measures and in water and food safety concerns. Researchers developed a new microfabrication technique to develop three-dimensional microfluidic devices in polymers. Microfluidics deals with the performance, control, and treatment of fluids that are constrained in some fashion.

  • U.S. confirms: Assad used chemical weapons against Syrian rebels, civilians

    The Obama administration has informed Congress a few minutes ago that the U.S. intelligence community has determined that the Assad regime has used chemical weapons on several occasions against both rebel forces and Syrian civilians. The U.S. intelligence community says these attacks, each using small quantities of sarin gas, have killed about 150 Syrians.

  • France weighing military options after French lab confirms Syrian use of sarin gas

    Laurent Fabius, France’s foreign minister, said yesterday (Tuesday) that samples taken from Syria and tested in France confirm that sarin gas has been used by the Assad regime in several attacks in March and April. The U.K. Foreign Office said that samples from Syrian victims tested in British labs also confirmed the use of sarin. A UN investigative panel released its report yesterday, saying its experts had “reasonable grounds” to suspect small-scale use of toxic chemicals. Fabius said that France was not ruling out a military strike on the place where the gas is being stored.

  • Quickly identifying chemical, biological warfare agents

    For more than fifty years, researchers have been studying exactly how aspirin affects the human body. Despite thousands of publications on the topic, our understanding is still incomplete. Meanwhile, novel chemical and biological weapons have historically been mass produced within a year of discovery. Using current methods and technologies, researchers would require decades of study to gain a robust understanding of how new threat agents exert effects on human biological systems. DARPA wants to close this capability gap, which leaves U.S. forces vulnerable.

  • Pennsylvania emergency professionals receive WMD training

    The Center for Domestic Preparedness (CDP) in Alabama hosted more than a hundred emergency professionals from the Pennsylvania South Central Mountains Regional Task Force’s Health and Medical Committee for in-depth response-to-WMD training.

  • U.S. sharply disputes UN official's claim that Syrian rebels used chemical weapons

    The United States sharply challenged claims by a UN official – who is not a member of the UN investigative commission looking into to the possible use of chemical weapons in Syria – that the rebels, rather than the Assad regime, used sarin nerve gas near the city of Aleppo on 19 March. The UN investigative commission looking into the incident distanced itself from the official’s comments.

  • Ammonium nitrate fertilizers are inherently risky, but the benefits are many

    The deadly explosion has brought the $10 billion U.S. fertilizer industry to the attention of the mainstream media, but the risks inherent in fertilizer production and storage are not a secret to people close to the industry. Ammonium nitrate may be dangerous, but its benefits cannot be ignored.

  • More than 10,000 pesticides approved by EPA without rigorous review

    Congress allowed the Environmental Protection Agency (EPA) to use what is called “conditional registration” to approve pesticides deemed especially beneficial for food production – even before all the toxicity tests have been completed. Congress intended conditional registration to be used only sparingly, but the EPS has been using the loophole in a wholesale fashion to approve 65 percent – or more than 10,000 – of the 16,000 pesticides submitted to it for approval. The EPA cannot easily track the history of conditionally approved pesticides to determine whether required toxicity data was submitted, whether that caused a dangerous use of a pesticide to be cancelled, or whether the uses or restrictions should be modified based in such data.

  • June workshop on approaches to CBRNE incidents

    NIST-organized workshop will explore ways to improve an all-of-government approach that increases resilience to international chemical, biological, radiological, nuclear, or explosive (CBRNE) incidents.

  • Arsenic in groundwater in Bangladesh naturally occurring

    Human activities are not the primary cause of arsenic found in groundwater in Bangladesh. Instead, a team of researchers found that the arsenic in groundwater in the region is part of a natural process that predates any recent human activity, such as intensive pumping.

  • Keeping an eye on the world’s dangerous chemicals

    In the chemistry labs of the developing world, it is not uncommon to find containers, forgotten on shelves, with only vague clues to their origins. The label, if there is one, is rubbed away. Left alone for years, some chemicals can quietly break down into explosive elixirs, and what was once an innocent experiment by a well-meaning scientist becomes a very real, unsecured threat. Should such chemicals fall into malicious hands, the consequences could be widespread and deadly.

  • Metamaterial sensor improves security, collision avoidance

    Engineers have developed a novel sensor which is more efficient, versatile, and cheaper for potential use in such applications as airport security scanners and collision avoidance systems for aircraft, cars, or maritime vessels.

  • Neutralizing the effects of lethal chemical agents

    Organophosphorus agents (OPs) are used both in farm pesticides, and by terrorists and rogue states. About 200,000 people die each year across the world from organophosphorus agents (OP) poisoning, through occupational exposure, unintentional use, and misuse, mostly in developing countries like India, Pakistan, and Sri Lanka and through deliberate terrorist activities. OPs include compounds like Tabun, which was developed in 1936 by German scientists during the Second World War, Sarin, Soman, Cyclosarin, VX, and VR. Researchers develop an enzyme treatment which could neutralize the effects of OPs.