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Written by Kevin Cresswell Introduction Obscurants are anthropogenic or naturally occurring particles suspended in air that block or weaken the transmission of particular parts of the electromagnetic spectrum, such as visible and infrared radiation or microwaves. Smokes are produced by burning or vaporizing some product.  Since World War II, Hexachloroethane (HC) screening smoke grenades have […]
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Originally published on HazmatMag Hazardous materials that are mishandled, incorrectly transported or used with malicious intent, can pose a substantial risk to human health and the environment. How effectively hazardous materials (HazMat) incidents are managed and resolved hinges on the knowledge, training and skill of those charged with response. In this article we examine the […]
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Originally published by NBCDFW Federal regulators revealed new natural gas safety recommendations just shy of three years since a deadly home explosion in Dallas killed a child. On the morning of Feb. 23, 2018, a video recorded by 12-year-old Linda ‘Michelita’ Rogers showed her up and excitedly getting ready for a cheerleading competition when disaster […]