Students gather around the truck that produces numerous plumes of smoke for the participants identify. Penn State's Visible Emissions Training Program, also known as Smoke School, is being held at The Penn Stater Conference Center Hotel October 22, 2014.
Students gather around the truck that produces numerous plumes of smoke for the participants identify. Penn State's Visible Emissions Training Program, also known as Smoke School, is being held at The Penn Stater Conference Center Hotel October 22, 2014. CDT photo
Students gather around the truck that produces numerous plumes of smoke for the participants identify. Penn State's Visible Emissions Training Program, also known as Smoke School, is being held at The Penn Stater Conference Center Hotel October 22, 2014. CDT photo

Smoke signals: Penn State students work toward EPA certification

October 22, 2014 11:46 PM

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