PREMIUM How much do you pay for your air conditioner refrigerant? If you're paying as little as Rp 80,000, you can be sure you're using chlorofluorocarbons, one of many substances known to damage the ozone layer. On International Ozone Day, which falls on Sept. 16, the government admitted poor law enforcement meant the illegal import and trade of ozone-depleting substances (ODSs) remained widespread. ...