Environmental Sampling Articles

  • Air Pollution in Subway Systems May be Much Worse than we realized

    As anyone who has ridden the subway knows, the air down there is unpleasant. New research done in Canada shows that air pollution levels in Toronto’s subway system are ten times greater than those above ground. It’s a troubling realization for subway-goers, but there are ways to keep these underground systems clean. ...


    By Camfil Ltd

  • Case study - Oil analysis - House Calls - Help reduce offshore equipment failures

    A new approach It is hard to think of another environment where an equipment failure could have a greater negative impact on employee safety and lost production than an offshore oil and gas production platform. Yet offshore platforms are among the world’s most difficult locations to operate and maintain equipment. In most cases, skilled people and supplies can only reach the ...


    By Spectro Scientific

  • World Oil: Holistic optimization approach improves coring efficiency, sample quality

    To acquire a high-quality core in as few runs as possible, and reduce operational costs, a provider must maximize ROP while ensuring efficient, safe surface handling of the rock sample and coring assembly. To satisfy these requirements, HT30 Max, a full-gauge core barrel system with jam mitigation technology, has been introduced. To improve initial production and ultimate recovery, we must first ...


    By Baker Hughes

  • A practical low-cost model for prediction of the groundwater quality using artificial neural networks

    The quality monitoring of water wells is always a costly and time-consuming process. To avoid the unnecessary cost and time of future sampling, applying some powerful and well known prediction models can be a suitable alternative. In this research, the groundwater quality of Amol-Babol aquifer was predicted using the artificial neural network (ANN) model with a data set from 1987 to 2010. ...


    By IWA Publishing

  • The 75-year history of soil sampling equipment supplier, AMS

    Almost 75 years ago in the small town of American Falls, Idaho, a man had a dream and a vision. Art Vollweiler had the philosophy that “everything was a work of Art.” Associating his name with everything he created meant something in 1942. It meant that everything he designed and built was made to last. Art’s assurance in quality has stood the test of time, and continues to be ...

  • U.S. troops get boost from soil sampling equipment supplier

    Top of the line soil sampling equipment isn’t the only thing that AMS produces. They also produce smiles on the faces of United States Troops overseas. The holidays can be lonely for U.S. troops, but it can also be immensely joyful when they know they have love and support from back home; not just from friends and family, but from complete strangers.  Rick Vollweiler, ...

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • E-Z Trays an Integral Part of Levelland`s Groundwater Treatment - Case Study

    QED E-Z Tray® Air Strippers an Integral Part of Levelland's Groundwater Treatment System The refinery at the former Motor Fuels Corporation produced all grades of gasoline, tractor fuels, diesel, distillate products, and fuel oils. It closed in 1954 after 15 years of operation, and the refinery equipment was removed by 1958. The property has since been redeveloped, but the ...


    By QED Environmental Systems

  • Oil Sampling Best Practices

    Obtaining a representative oil sample from a closed loop lubrication system is essential to any good oil analysis program. As oil analysis programs become more standardized for routine monitoring, especially within equipment warranty support programs, equipment makers provide more sampling points on new equipment. These ...


    By Spectro Scientific

  • Oxidative treatment of diclofenac via ferrate(VI) in aqueous media: effect of surfactant additives

    The potential reaction of diclofenac (DCF) with ferrate(VI) and influences of coexisting surfactants have not been investigated in depth, and are the focus of this study. The results demonstrated that DCF reacted effectively and rapidly with Fe(VI) and approximately 75% of DCF (0.03 mM) was removed by excess Fe(VI) (0.45 mM) within 10 min. All of the reactions followed pseudo first-order ...


    By IWA Publishing

  • GoForth, NC Case Study

    ABSTRACT Trap & Treat® BOS 200® was used to remediate petroleum hydrocarbon impacted groundwater within fractured bedrock and overburden soil at a former retail gasoline site in North Carolina. After a thorough remedial design characterization was completed, BOS 200® was surgically injected over two field events to successfully achieve the ...

  • How HDXRF Helps Volcom Comply with Global Regulations - Case Study

    Volcom, Inc. is a lifestyle brand that designs, markets, and distributes high-quality boardsportsoriented products like clothing, footwear and accessories. As a global company, their restricted chemicals list is a combination and reflection of many international standards. CPSC and Proposition 65 lead the way for many of the chemicals’ lower limit regulations, but Canadian, Chinese, and ...


    By X-Ray Optical Systems (XOS)

  • Source tracking of Enterococcus moraviensis and E. haemoperoxidus

    Enterococci were detected occasionally in 100 L samples of water abstracted from a shallow aquifer in a natural dune infiltration area for drinking water production. Enterococcus moraviensis was the species most frequently identified in these samples. Because there are no existing reports of faecal sources of E. moraviensis and the closely related E. ...


    By IWA Publishing

  • Assessment of carbon nanotubes and silver nanoparticles loaded clays as adsorbents for removal of bacterial contaminants from water sources

    This work evaluated the antimicrobial efficacy of kaolin clay and its loaded forms with carbon nanotubes (CNTs) and silver nanoparticles (AgNPs) against bacterial isolates from different water supplies (tap, underground and surface water) in addition to wastewater. A total of 160 water samples were collected from different water sources in the investigated districts. Samples were cultured for ...


    By IWA Publishing

  • On the right track

    High-speed train manufacturer, CAF, rely on world-class beamforming technology to reduce the noise generated by their trains – helping to make high-speed trains a more viable option for travellers and operators alike. Because of its relatively low levels of CO2 emissions, train travel is considered one of the ...

  • Spatial distribution of heavy metals in groundwaters and health risks associated in the Ntem watershed, Yaoundé, Cameroon

    The present study was aimed at bridging the gaps in the knowledge concerning heavy metals (Pb, Cd, Cr, Ni, Zn, Cu, Mn and Fe) concentrations in the groundwaters of the Ntem watershed in Yaoundé. Representative groundwater samples (25 numbers) were collected from five hand-dug wells, and their metal concentrations were assessed as per standard procedures, and deterministic interpolation ...


    By IWA Publishing

  • Radon-222 from different sources of water and the assessment of health hazard

    Water samples collected from different sources were analysed for radon concentrations in order to evaluate the health effect associated with radon in water. The radon concentrations were in the range of 3.56–98.57, 0.88–25.49, 0.73–1.35 and 0.24–1.03 Bq.L−1 for borehole, well, packaged and utility water, respectively. Samples from boreholes had the highest radon concentrations with about 67% ...


    By IWA Publishing

  • Norovirus genogroups I and II in environmental water samples from Belém city, Northern Brazil

    This study investigated the presence of norovirus (NoV) GI and GII in environmental samples from the northern region of Brazil. Water samples were collected monthly (November 2008/October 2010) from different sources and sewage and concentrated by the adsorption-elution method. The NoV investigation used molecular methods followed by sequencing reactions. The general positivity for NoV was ...


    By IWA Publishing

  • Do storm event samples bias the comparison between sewer deposits contribution?

    Previous researches demonstrated the occurrence of unique in-sewer sediment, the organic layer, on the Marais site in Paris, capable of explaining the entire wet weather sewer production of suspended particles. Other studies on sites having no similar organic sediment, Clichy in Paris and Ecully in Lyon, demonstrated a wet weather sewer deposits contribution (SDC) to effluent pollution ...


    By IWA Publishing

  • Did You Know? 10 Fascinating EHS Facts from Around the Globe

    Expanding your organization into a new global location with little or no understanding of the local environmental health and safety (EHS) and cultural implications of doing business there can be extremely challenging and even risky. When it comes to ensuring a successful cross-border ...


    By Antea Group - USA

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