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Safety, science support sleep apnea testing

In the wake of Hours of Service rule exemptions, ready mixed producers are following Federal Motor Carrier Safety Administration (FMCSA) work-in-progress guidance on testing of drivers for risk of obstructive sleep apnea (OSA). The condition attends obesity and sees tissues around the upper respiratory tract relax and physically block the airway. The FMCSA Medical Review Board links the condition to daytime sleepiness, making truck drivers more accident prone.

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Paying attention to the carbon footprint behind the wood curtain

“Determining the Carbon Footprint of Wood” (PCA R&D 3287) is a valuable work based on Portland Cement Association-sponsored research. The timely report tracks trees and forests’ carbon dioxide-sequestering capacity, one of the value propositions wood building product interests channel to green-building practitioners; paints rationale for the wood industry to document carbon accounting methods transparently, especially when product is not sourced from a sustainably managed forest; and, helps cast-in-place concrete, precast and masonry construction practitioners respond to competitors’ claims of environmental mettle.

Read more: Paying attention to the carbon footprint behind the wood curtain