One of the Air Quality Principles stated in the IRR of RA 8749 is the recognition that the cleaning of the environment is primarily area-based and that air quality management and control are most effective at the level of airsheds. As defined in the act, “Airsheds” are areas with similar climate, meteorology and topology which affect the interchange and diffusion of pollutants in the atmosphere. Sub-areas within Airsheds may therefore have similar air quality, and face similar problems, development programs and prospects.
As of 2018, there is a total of 22 airsheds in the Philippines, five of which are geothermal airsheds which are specially designated due to the presence of a geothermal plant in the area. For each of the airsheds officially designated, Governing boards have also been established.
DENR Administrative Order (DAO), Memorandum Circular (MC) and Special Order (SO) issued related to Airsheds in the Philippines:
DAO, MC, SO
Title
Date
Year 2011
DAO 2011 – 11
Re designation of the Metro Manila Airshed into three individual Airsheds and establishment of their Governing Board National Capital Region Airshed Cavite, Laguna, Rizal Airshed Bulacan, Pampanga, Bataan Airshed
October 19, 2011
Year 2009
DAO 2009-02
Designation of Makiling – Banahaw Geothermal Airshed and its Governing Board
February 11, 2009
Year 2008
DAO 2008-06
Renaming Agusan Del Norte Airshed and its Governing Board into Agusan Del Norte Butuan City Airshed and Agusan Del Norte Butuan Airshed Governing Board
May 13, 2008
Year 2007
DAO 2007-07
Revising the initial coverage of the Metro Manila Airshed and its Governing Board
April 12, 2007
Year 2006
DENR SO 2006-833
Amendment to the DENR Special Order No, 2005-28 re: Designation of Non Government Organizations (NGO) and Private Representatives as Member of the Metro Manila Airshed Governing Board and 2006-366 re: Creating an Interim Executive Committee of the Metro Manila Airshed Governing Board and Designating its Members
October 3, 2006
DENR SO 2006-395
Designation of Deputy Chairpersons of the Interim Governing Board of the Metro Manila Airshed
May 5, 2006
DENR SO 2006-377
Creating an Interim Executive Committee of the Metro Manila Airshed Governing Board and Designating its Members
April 25, 2000
DAO 2006-02
Establishment of Baco-Calapan City Naujan Airshed and its Governing Board
January 16, 2006
Year 2005
DENR SO 2005-981
Assignment of EMB and PCMU Staff Pursuant to the DENR Administrative Order No. 2002-05 Designating the Metro Manila Airshed and Creating the its Interim Governing Board
October 5, 2005
DMC 2005-013
Guidelines for the Designation of Attainment and Non Attainment Areas in an Airshed
September 12, 2005
DAO 2005-11
Establishment of the Metropolitan Iloilo Airshed and its Governing Board
June 10, 2005
DENR SO 2005-28
Designation of Non Government Organization (NGO) and Private Sector Representatives as Members of the Metro Manila Airshed Governing Board
Jan 14, 2005
Year 2004
DAO 2004-22
Establishment of South Cotabato Airshed and its Governing Board
August 3, 2004
DAO 2004-05
Establishment of Metro Tuguegarao (PIESTTA) Airshed and its Governing Board
May 23, 2004
DAO 2004-13
Designation of North Cotabato Geothermal Airshed and its Governing Board
May 18, 2004
DAO 2004-12
Designation of Leyte Geothermal Airshed and its Governing Board
May 18, 2004
DAO 2004-11
Designation of Baco-Manito Geothermal Airshed and Its Governing Board
May 18, 2004
DAO 2004-14
Designation Of Southern Negros Geothermal Airshed and its Governing Board
May 18, 2004
DAO 2004-07
Establishment of Northeastern Pangasinan Airshed and its Governing Board
March 23, 2004
Year 2003
DMC 2003-20
Initial Designation of Zamboanga City Airshed
September 30, 2003
DAO 2003-47
Designation of the Members of the Zamboanga City Airshed Governing Board
September 30, 2003
DAO 2003-45
Designation of Members of the Governing Board for Metro Cagayan De Oro Airshed, Province of Misamis Oriental Region X
September 12, 2003
DMC 2003-17
Initial Designation of Metro Cagayan De Oro Airshed
September 12, 2003
DAO 2003-33
Designation of the Members of the Naga City Airshed Governing Board Located in the Province of Camarines Sur, Bicol Region
July 14, 2003
DMC 2003-13
Designation of Naga City Airshed
July 14, 2003
DMC 2003-09
Designation of Agusan del Norte Airshed
June 10, 2003
DAO 2003-16
Designation of the Members of the Agusan Del Norte Airshed Governing Board
June 6, 2003
DAO 2003-04
Initial Designation of BLIST Airshed and the Creation of its Interim Governing Board
February 12, 2003
DAO 2003-02
Initial Designation of Davao City Airshed in Region IX
February 12, 2003
DMC 2003-03
Initial Designation of Baguio City Municipality of LA Trinidad, Itogon, Sablan and Tuba (BLIST) Airshed in the Cordillera Autonomous Region
February 12, 2003
Year 2002
DMC 2002-13
Establishment of Geothermal Areas as Airsheds
November 13, 2002
DMC 2002-11
Initial Designation of Airshed for Metro Cebu
October 07, 2002
DAO 2002-21
Initial Designation of the Members of the Metro Cebu Airshed Governing Board
October 07, 2002
DMC 2002-03
Interim Guidelines for the Designation of an Airshed
June 10, 2002
DAO 2002-05
Initial Designation of the Metro Manila Airshed and the Creation of its Interim Governing Board
