Indoor air quality research continues to grow substantially over the last several years. Most research prior to the 2010’s was focused on outdoor emission sources, rather than the indoor air; with people spending almost 90% of their indoors, indoor air quality has a severe impact on people’s health. A specifically problematic aspect air monitoring within […]
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A client recently approached RJ Lee Group with a suspected counterfeit version of their patented injectable medication. Unlike the cloudy solution the company produces, the two samples provided were more translucent, almost clear. The client was concerned that the samples were either a counterfeit or contaminated version of their product, and asked our laboratory to […]
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A number of personal injury claims asserted that NIOSH-approved respirators worn by coal miners were tested using silica dust and therefore were not effective for miners exposed to airborne coal dust. The NIOSH method evaluated the performance of air-purifying respirators according to Title 30, Part 11 of the Code of Federal Regulations. A law firm […]
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According to Google Scholar, “Degradation of Well Cement by CO2 under Geologic Sequestration Conditions,” a research paper jointly authored by the U.S. Department of Energy, Carnegie Mellon University, and RJ Lee Group, has now been cited more than 200 times in scientific journals. The first paper in a series of three, this publication focuses on […]
Read More CHALLENGE: Characterize the engineered nanomaterials (ENMs) in toner formulations and study the release of the ENMs during consumer use of laser printers. Characterize their physiochemical, morphological, and toxicological properties. SOURCE: Printers from the four most commercially available manufacturers and models using a variety of printer toner powder and paper were used during printing. PROCESS: The […]
Read More The following case study explores engineered nanoparticles released during laser printing. CHALLENGE: Characterize the engineered nanomaterials (ENMs) in toner formulations and study the release of the ENMs during consumer use of laser printers. Characterize their physiochemical, morphological, and toxicological properties. SOURCE: Printers from the four most commercially available manufacturers and models using a variety of […]
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We’re here today with Don Ewert, one of RJ Lee Group’s Industrial Hygienists and the person responsible for the provision of Occupational Health services. Q: Don, you are the de facto professional liaison with PACNY – the Professional Abatement Contractors of New York. How were you chosen for that role? Although I’m the one […]
Read MoreRecent guidelines issued by the New York State Department of Health regarding spray-on fireproofing containing vermiculite (SOF-V) may affect thousands of structures across the state. RJ Lee Group is helping to clarify these requirements for building owners and inspectors with a webinar series focused on the two accredited analysis methods, LAB.055.1 and 198.8.
Read More 2014 was a year that, while demanding, was also challenging and exciting. We adjusted to meet the impact of reduced government spending, the slowing of the global economy, and the overall fiscal uncertainty felt by our customers that eventually reflected in our revenues. Fortunately, we were able to recoup this setback and by the third […]
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If you want solid answers to your concrete questions, a petrographer can help. Petrographers use a combination of visual inspection, microscopy, and chemical techniques to examine concrete cores. These analyses provide a basis for understanding the condition of the material, why it failed, or the material’s remaining service life. If you are submitting concrete cores, […]
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