What is ASH’s position on outdoor smoking, such as parks and beaches? ash July 30, 2012 FAQs There is no safe level of exposure to tobacco smoke, and there is no legal right to smoke. ASH supports smoking bans wherever innocent bystanders will be impacted by secondhand smoke. In addition to the danger of inhaling smoke, cigarette butts are the leading single cause of litter in parks and beaches. Cigarette butts are filled with toxins that find there way into water supplies and ecosystems, and because they are made of plastic, are not biodegradable.