Students create device that cuts harmful emissions from lawnmowers, which emit 11 times the air pollution of a new car for each hour of operation From left, Wartini Ng, Timothy Chow, Kawai Tam, Jonathan Matson and Brian Cruz A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for a device they created that curbs harmful pollutant emitted from lawnmowers by 93 percent. The students developed the device – an “L” shaped piece of stainless steel that attaches to the lawnmower where its muffler was – because small engine devices produce significant harmful emissions. For example, the Environmental Protection Agency estimates that a gasoline powered lawn mower emits 11 times the air pollution of a new car for each hour of operation. The device, with the stainless steel mesh filter and catalyst support structure detached. The grey piece is a metal mesh filter to remove particulate matter and the white piece is the catalyst support structure. The students’ device has also fits in with UC President Janet Napolitano’s recent announcement to make the University of California system carbon neutral by 2025. With that in mind, employees responsible for maintaining the lawns at UC Riverside have agreed to
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