Asbestos exposure increases the risk of lung cancer. It is known that asbestos causes a chronic inflammation response in the lungs. Neutrophils are attracted to the site of inflammation, but cannot break down the asbestos. Neutrophils normally release reactive oxygen species (ROS) at the site of inflammation (to help kill bacteria, etc.) and ROS can cause oxidative damage to DNA. Based on this information, explain why asbestos increases the risk of lung cancer.