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affected Agusan Albay Annual average Bataan Batangas Benguet biodiversity Biological Diversity Bridge Bulacan Cagayan Cebu chemicals Class Climate Change coastal concentration conservation Convention coral reefs country's damage Davao DENR Diesel Gas dry weight Earthquake ecosystems emissions energy Environmental Management Bureau estimated Figure fish samples Fisheries forest lands Fuel given in Table hectares Honda Bay Ilocos increased industrial IUCN Laguna de Bay lake logging Lowest Recorded BOD/DO major mangrove Manila Bay marine Metro Manila Metro Manila Region mg/L million hectares mining Misamis Oriental monitoring National Negros Occidental Nueva Viscaya Oriental Mindoro Oriental Mindoro 04 Palawan Pampanga Pangasinan Paranaque Pasig River percent Philippine Plant population production Program projects Protected Areas provinces Quezon City Recorded BOD/DO Levels reforestation Region 9 Seagrass sector shellfish samples Soil species stations sulfur sustainable development Tarlac Total Number trend Upper urban wastes water quality wildlife Zambales Zambales 03 Zamboanga