Estimates of HVAC filtration efficiency for fine and ultrafine particles of outdoor origin

Parham Azimi, Dan Zhao, Brent Stephens Department of Civil, Architectural and Environmental Engineering, Illinois Institute of Technology, Chicago, IL, USA Received 31 July 2014, Revised 26 August 2014, Accepted 3 September 2014, Available online 4 September 2014. Abstract This work uses 194 outdoor particle size distributions (PSDs) from the literature to estimate single-pass heating, ventilating, and air-conditioning (HVAC) filter removal efficiencies for

A Legal Call to Arms to Remedy Environmental and Climate Ills

University of Oregon law professor Mary Wood says environmental laws in the United States are simply not working. In an interview with Yale Environment 360, she explains why she believes a new strategy and robust judicial intervention are needed to protect nature and the climate. By Fen Montaigne • January 2, 2014 Mary Christina Wood has an unsparing

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PDF   Date: March 5, 2013 Foster Garvey Newsroom A recent order dismissed claims by 126 property owners against the Port of Seattle. The property owners claimed that noise, vibration, and emissions from aircraft operations increased after the Third Runway at Sea-Tac Airport opened in November 2008. The Port sought dismissal of the claims based on