Fig. 1From: Exposure to lead-free frangible firing emissions containing copper and ultrafine particulates leads to increased oxidative stress in firing range instructorsSchematics of small arms ranges at WPAFB and JBC. A Illustration of the fully enclosed range design at WPAFB where ventilation is supplied by a radial plenum. B Illustration of the partially enclosed range design at JBC where ventilation is provided by banks of industrial fansBack to article page