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Welcome to our website, especially High School Chemistry Teachers!
I wanted to remind you that Dr. Donald Stedman, from the University of Denver, will be giving a presentation to our local section at Gonzaga University, Hughes Hall, Room 130, on Wednesday, May 29 at 7:00 p.m. The title of his talk, “The Science and Politics of Motor Vehicle Emissions." I hope you will be able to attend.
Description: In the late 1980s we invented a device which measures the fuel-based emissions of individual motor vehicles as they drive by. IR is used to measure CO, CO––2, and hydrocarbons. UV is used to measure NO, NO2, NH3 and SO2. A typical system measures 10,000 vehicles per day. The results correlate very well with average automobile emissions measured on a dynamometer in states which have large dynamometer emission testing programs. We find from these studies that: a few broken vehicles are responsible for most of the emissions: the fraction of broken vehicles (a.k.a., gross emitters) has been going down with time, apparently as a result of vehicle manufacturer's improved ability: new vehicles are essentially irrelevant to emissions for their first four years and remain so throughout their lifetime if properly maintained. With evidence of 20 million readings from over 20 countries we emphasize the overriding importance of both vehicle maintenance and new car standards, and believe that automobile emissions control programs which treat all vehicles, or all vehicles of a give model year, as having the same emissions are bound to have poor cost effectiveness. For more information see www.feat.biochem.du.edu.
The following link provides a campus map of Gonzaga University:
If you have any questions or concerns please do not hesitate to contact me. I look forward to seeing many of you on May 29rh.
Jeffrey A. Rahn
Councilor (Inland Northwest Section)