Lead Contamination Articles

  • Airport Lead and Arsenic Removal - Case Study

    City of Cincinnati The Airport was built on a former military firing range and apple orchard. To complete the removal of all the lead and arsenic, we excavated and removed over 20,000 tons of treated and non-treated contaminated soil. Then we stabilized 11,000 tons of hazardous soil on site. We graded and capped the site all while complying with FAA, City and Airport ...

  • Three Strategic Options for Managing Acquired Environmental Liabilities

    Evaluating Through a Finance Lens As companies strive to remain competitive and profitable in today’s uncertain economy, asset transactions continue to play a leading role in their efforts to transform, adapt and re-invent themselves. A well-thought out and well-executed acquisition can bask even the most gloomy of balance sheets in sunshine by bringing rapid revenue growth, added ...


    By Antea Group - USA

  • Removal of lead(II) and nickel(II) ions from aqueous solution via Bermuda grass biomass

    Adsorption of lead(II) and nickel(II) ions from aqueous solutions was investigated by Bermuda grass biomass. The adsorption process was studied as a function of pH, initial metal concentration, temperature and time. The experimental data obtained were investigated via Langmuir, Freundlich and Temkin isotherms. The kinetic data were examined by pseudo-second-order and intraparticle diffusion ...


    By IWA Publishing

  • When It Comes to Screening Media, Quality Matters

    In precise industrial processes, all equipment and constituent parts must work together to drive performance and efficiency. For screening and sifting materials in the pharmaceutical, chemical, aggregate and other industries, your choice of media goes a long way toward determining the effectiveness of your machines. Even the best vibratory sifters are only ...


    By VibraScreener Inc.

  • Effective removal of lead (II) ions by dead calcareous skeletons: sorption performance and influencing factors

    Dead calcareous skeletons (CSs) as low-cost adsorbents were studied to remove lead ions (Pb (II)) in an aqueous solution. Factors influencing the efficiency of CSs were evaluated by adsorbent size, contact time, initial concentration, dosage concentration and pH. The optimum CS size for removal of Pb (II) was 710 μm at an equilibrium time of 720 min. The best dosage of CS was 10 g/L for a 99% ...


    By IWA Publishing

  • Preparation and application of magnetite nanoparticles immobilized on cellulose acetate nanofibers for lead removal from polluted water

    Novel magnetic cellulose acetate (CA) nanofibers were fabricated using an electrospinning process. Co-precipitated magnetite iron oxide nanoparticles were immobilized onto CA nanofibers at different weight ratios (0.2–2.5% wt/v) with a CA concentration of 15% (wt %), applied electric voltage of 20 kV, feeding rate of 1.5 ml/h and 7 cm distance between needle tip and collector. The prepared ...


    By IWA Publishing

  • The Use of Leading Indicators to Predict Safety Performance

    To find sources of leading safety indicators, we need to look at the base of the Heinrich Safety Pyramid. Leading safety indicators are derived from safety incidents that did not result in injury. These can include everything from job safety observations and attendance at safety meetings to unsafe acts and near misses. These are different than lagging indicators, which are statistics that result ...


    By Intelex Technologies Inc.

  • Benchmarking Health and Safety Performance

    Identifying Indicators and Improving Benchmarking health and safety performance at work is vital to all organisations who want to excel beyond the threshold of legislative compliance. Safety practitioners whose aim is only to legally comply with legislation may be seen as a re-active safety practitioner, scraping by rather than ...


    By SHEilds Ltd

  • If lead ammunition is bad for people and the environment, why do we still use it?

    Concerns about regulation, skepticism about the science and misperceptions about costs are slowing the transition to nontoxic alternatives. Andrea Goodnight knows firsthand what lead poisoning looks like. A veterinarian at the Oakland Zoo, Goodnight treats endangered California condors when testing shows dangerous levels of the toxic metal in their blood. If ...


    By Ensia

  • Gender equality in Health and Safety

    The Oxford English Dictionary gives a definition of equality as “The state of being equal, especially in status, rights, or opportunities” Discrimination is common against both genders in different work environments, however it is not easy to find many statistics or research results on this particular topic and women do not appear to be well represented in the Health and Safety arena. ...


    By SHEilds Ltd

  • Using Leading Indicators to Predict Safety Performance

    Leading indicators have been used for years to predict the future. Meteorologists use barometric pressure to predict the weather, politicians use polls to inform their campaign strategies and doctors use elevated body temperature as an indicator of patient health. Therefore, the use of leading indicators to predict future safety performance is a logical next step in successfully improving safety ...


    By Intelex Technologies Inc.

  • Ukas accredited laboratory manages its own configurations of Matrix Gemini LIMS case study

    By working closely with Autoscribe on the upgrade of Matrix 4 to Matrix Gemini, staff at Cavendish Nuclear's environmental laboratory have become so proficient in using Gemini's one-time configuration tools that they manage and implement any updates and developments to their own system as their needs arise. Background Cavendish Nuclear's environmental laboratory is an internationally ...


    By Autoscribe Informatics

  • Battery Testing Laboratory Benefits From Flexibility of Matrix Gemini LIMS - Case Study

    The unique configuration capabilities of Autoscribe's Matrix Gemini Laboratory Information Management System (LIMS) has allowed the creation of a flexible data management system for the Energy Innovation Centre at WMG, University of Warwick. Any system changes and developments are being handled internally by the Energy Storage and Management Research team using the OneTime" Configuration Tools. ...


    By Autoscribe Informatics

  • Together we can get the lead out

    If there is one lesson to be learned from the Flint crisis, it is this: Our communities will be safer in the long run with no lead pipes in the ground. That’s why the board of the American Water Works Association – recognizing our first core principle is the protection of public health -- voted unanimously on March 7 to forge on a path toward the removal of all lead service lines. ...

  • Bioaccessibility tests accurately estimate bioavailability of lead to quail

    Hazards of soil‐borne Pb to wild birds may be more accurately quantified if the bioavailability of that Pb is known. To better understand the bioavailability of Pb to birds, we measured blood Pb concentrations in Japanese quail (Coturnix japonica) fed diets containing Pb‐contaminated soils. Relative bioavailabilities were expressed by comparison with blood Pb concentrations in quail fed a Pb ...


    By John Wiley & Sons, Ltd.

  • Spectrophotometric investigation of the interactions between cationic (C.I. Basic Blue 9) and anionic (C.I. Acid Blue 25) dyes in adsorption onto extracted cellulose from Posidonia oceanic in single and binary system

    Extracted cellulose from Posidonia oceanica was used as an adsorbent for removal of a cationic (Basic blue 9, BB) and anionic textile dye (Acid blue 25, AB) from aqueous solution in single dye system. Characterization of the extracted cellulose and extracted cellulose-dye systems were performed using several techniques such as Fourier transform infrared spectroscopy, X-ray photoelectron ...


    By IWA Publishing

  • Lead determination in instant noodles

    Wet Digester B-440: Acid digestion and ashing using the Wet Digester B-440 followed by spectroscopic lead determination  Lead determination by ICP-MS using the Wet Digester B-440 for ashing gives reliable results with a recovery rate above 85 % and is in accordance to the FSSAI regulation. For the measured instant noodle samples the lead content was far below the permissible limit. ...


    By BÜCHI Labortechnik AG

  • A comparative evaluation of five hazard screening tools

    An increasing number of hazard assessment tools/approaches are being used in the marketplace as a means to differentiate products and ingredients with lower versus higher hazards or to certify what some call ‘greener’ chemical ingredients in consumer products. Some leading retailers have established policies for product manufacturers and their suppliers to disclose chemical ingredients and ...


    By John Wiley & Sons, Ltd.

  • If one country takes the lead, will the rest follow?

    Though most countries agree that warming must be limited to 2 degrees Celsius to avoid the raft of climate risks, they clash about who should do what to reach this target. This could lead to gridlock in Paris in December and potential failure at the world climate summit COP21.  Researchers have determined what amount of emissions reductions it takes for a major economy to ...


    By GLOBE SERIES

  • Chemical oxidization of some AFFFs leads to the formation of 6:2FTS and 8:2FTS

    The present study tested some aqueous film‐forming foam (AFFF) products for the presence of or the potential to form 1H,1H,2H,2H‐perfluorooctanesulfonic acid (6:2FTS) and 1H,1H,2H,2H‐perfluorodecane sulfonic acid (8:2FTS). The results demonstrated the appearance of significant levels of 6:2FTS and 8:2FTS after the oxidization of those AFFFs. The authors concluded that fluorotelomer skeletons ...


    By John Wiley & Sons, Ltd.

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