You are an industrial hygienist for a chemical manufacturing company. Management is concerned about employee exposures to silica dust during a certain process. Which of the following is NOT an example of a method of active prevention? Question 3 options: Make sure upper management visits workers on the floor and experiences potential exposures Design and utilize a ventilation system to capture the silica dust at point of generation Eliminate use of silica in process if possible Rotate workers performing that particular process to minimize time of exposure to silica dust