Case Studies: Case Studies - Environmental Health and Safety

Test Chamber Simulation Studies Confirm Respirator Effectiveness for Airborne Coal Dust

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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Are There Health Implications from Exposure to Engineered Nanoparticles Emitted from Laser Printers?

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 ...
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Do Engineered Nanoparticles Emitted from Laser Printers have Health Implications?

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 ...
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Multi-Faceted Support for International Liquefied Natural Gas Production

RJ Lee Group provides significant technical support to Fortune 500 companies for international liquefied natural gas production, including those involved in energy production. Technical challenges that are already significant become magnified when working across continents, cultures, and environments – e.g., the middle east is particularly harsh from a corrosion standpoint.
In this example, RJ Lee ...
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Establishing the WTC Dust Signature: Managing Post 9/11 Environmental and Damage Assessments

RJ Lee Group served as the lead scientific management team, collecting and processing more than 100,000 samples over a three-year period — the most comprehensive environmental impact study ever performed in Class-A building structures.
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Industrial Plants Can Face Costly Nuisance Dust Claims

RJ Lee Group was retained by an industrial plant to investigate — and ultimately refute — nuisance dust claims. We issued an expert report and provided supporting data and a deposition testimony.
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Experts Distinguish Corrosive Property Damage from Normal Deterioration

When 60 tons of chlorine gas were released in a catastrophic event, RJ Lee Group was called in to assess more than 360 property locations and 500 vehicles. Our expert testimony ultimately helped to refute unsubstantiated damage claims in the surrounding area.
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Improving Laboratory Productivity at the World’s Largest Nuclear Waste Site

In 2009, RJ Lee Group was subcontracted to provide support services for the largest nuclear waste site in the world. In less than a year, we improved the on-time delivery rate by 40% and reduced testing turnaround time from 30 to 10 days.
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A Test Chamber Designed to Measure Respirable Dust for Product Stewardship

RJ Lee Group designed and constructed a test chamber to simulate a controlled environment in which we could sample for respirable dust.
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Nanotechnology- RJ Lee Group Designs and Conducts a Multiphase Study

Nanotechnology- RJ Lee Group designs and conducts a multiphase study to help identify and manage potential health and safety hazards as well as environmental impacts related to unbound engineered nanoparticles (UNP).
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