THE QUEZON City Environmental Protection and Waste Management Department (EPWMD) launched last Aug. 31 the trading of single-use PET (polyethylene terephthalate) bottles for reusable water containers, which will be undertaken every Friday at the QC Hall material recovery facility. A reusable bottle will be given for every one kilo of PET bottles. EPWMD head Frederika C. Rentoy thanked local government employees who were the main participants during the launch, where 152 kilos of PET bottles were collected.