In compliance with RA 8749 or the Philippine Clean Air Act of 1999, as well as Section 2 of DENR Administrative Order (DAO) 2000-81 or the Review of Air Quality Guideline Values, the Environmental Management Bureau-Department of Environment and Natural Resources (EMB-DENR), together with its created Technical Working Group (TWG)z reviewed the Particulate Matter 2.5 continue reading : DENR ADMINISTRATIVE ORDER ON ESTABLISHING BREAKPOINTS FOR PM 2.5 AIR QUALITY INDEX REVIEWED AND APPROVED BY DENR
