Many industries in Illinois rely on diesel-powered equipment and vehicles. Exhaust from diesel engines contains particulate matter that can pose both short- and long-term consequences to the respiratory health of workers. Short-term exposure to diesel exhaust irritates the eyes, nose and throat. Over the long term, exposed workers experience higher rates of cardiovascular and respiratory diseases such as lung cancer. Although the Occupational Safety and Health Administration has not set a standard regarding exposure to diesel particulate matter, the agency does provide employers with guidelines for reducing exposure.