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Device eliminates 93 percent of lawnmower pollutant

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.