ASEANO Project Report: Mapping of Sources and Concentration of Plastic Waste in the Imus River Watershed
PUBLICATION DATE:
Tuesday, April 19, 2022
PUBLICATION TYPE:
Reports
STATUS:
Only Available Online
DESCRIPTION:
The sources of plastic wastes and areas of expected high levels of plastic waste generation were mapped in the Imus River Watershed in the Province of Cavite, in the Philippines. Different sources of plastic waste were identified, and used to estimate the magnitude of plastic waste generation. Information on the major sources of plastic waste were obtained from the 10-Year Solid Waste Management Plan of the seven cities and municipalities located within the boundaries of the watershed. Remote sensing technology was used to identify the coordinates of different potential sources. For higher resolution, Google Imagery was used in preparing base maps which were imported and georeferenced in ArcMap. A 7-day waste characterization study in three selected barangays was conducted to determine the average amount of plastic waste generated per household. This data served as inputs for a hotspot analysis in ArcGIS to identify plastic waste generation hotspots within the watershed. The Imus River system traverses seven cities and municipalities that include parts of Tagaytay City, Silang, and Amadeo in the upland areas, a large part of the densely populated and urbanized cities of Dasmariñas and Imus City in the central hilly areas, and portions of the lowland City of Bacoor and the coastal Municipality of Kawit. It has a total drainage area of 11,259.80 hectares. A total of 222 barangay communities were identified within the boundaries of the watershed with a total population of 1,351,057. The major sources of waste in the watershed were primarily households, followed by commercial, institutional, and industrial establishments. The total number of commercial, institutional, and industrial establishments identified was 778, and a total of 54 waste storage facilities were found in the watershed. From the 7-day characterization study in three selected barangay communities, an average of 113.03 kg of plastics was generated daily by the households in Barangay Burol 1, Dasmariñas City; 9.17 kg/day in Barangay Mabolo 1, Bacoor City; and 29.29 kg/day in Barangay Maitim 2nd Central, Tagaytay City. An average of 0.17 Kg/day per household of plastics were generated in the watershed and 0.05 Kg/day per capita. A cluster of high plastic waste generating barangays was identified in Dasmariñas City, where various tributaries of the Imus River converge. This combination is likely to create a significant hotspot for waste leakage. Clusters of low plastic waste generating barangays were identified in parts of Imus, Kawit, and Bacoor. These cold spots should not be ignored, as increasing plastic waste generation could exceed capacity and push them into future leakage hotspots.
RELATED PUBLICATIONS
-
PEMSEA Brochure 2024
This PEMSEA e-brochure provides a quick introduction to the partnerships, its role, its networks and the services it offers. For more detailed information, please go to the homepage and browse the various sections of the website.
-
Proceedings of the 2023 PEMSEA Network of Local Governments Forum (PNLG) "Developing Coastal Cities, Fostering Blue Partnership"
The 2023 Forum of the PNLG with the theme, “Developing Coastal Cities, Fostering Blue Partnership” was hosted by the PNLG and PEMSEA and co-organized by the PNLG Secretariat, PEMSEA Resource Facility (PRF) and Coastal and Ocean Management Institute (COMI) of Xiamen University (XMU). The forum was conducted on 8-11 November 2023 in Xiamen, China. The PNLG Forum was one of the key events of the Xiamen World Ocean Week.
The Forum was participated by over 130 participants from:
- 23 members from seven countries, namely: Cambodia, China, Indonesia, Malaysia, Philippines, RO Korea, and Timor Leste,
- 4 PNLG Associate members, namely the First Institute of Oceanography, Ministry of Natural Resources, China; Coastal and Ocean Management Institute (COMI) and Fujian Institute for Sustainable Oceans (FISO) of Xiamen University (XMU), China, and National Ocean Technology Center (NOTC) of the Ministry of Natural Resources, China;
- resource speakers and other invited experts,
- the PNLG Secretariat, and
- the PRF.
-
Proceedings of PEMSEA Network of Learning Centers (PNLC) back - to - back Events
The document contains the proceedings of three back-to-back activities that were conducted in Seoul, Republic of Korea from 31 October to 3 November 2023.
The activities include:
- The 6th Geo Blue Planet Symposium on Digital Solution for Sustainable Ocean Community on October 31
- PEMSEA Learning Exchange on Good Practices in Implementing Biodiversity Conservation-Focused Ecosystem and Area-based Management Approaches on November 1
- The 3rd PEMSEA Network of Learning Centers (PNLC) General Assembly Meeting on November 2
The activities were organized by the PEMSEA Resource Facility (PRF) with support from RoKorea Ministry of Ocean and Fisheries, the Korea Maritime Institute (KMI), and the Korea Management Corporation (KOEM), and the Korea Blue Carbon Research Center.
Participants include 39 representatives from 17 of the 21 PNLC members, officers, and staff from KMI, KOEM, the Korea Blue Carbon Research Center, and the PEMSEA Resource Facility (PRF).
-
Integrated River Basin Management Project Newsletter - Edition 1
2023 marks the beginning of a breakthrough collaboration among six ASEAN member states (AMS) and development partners in Southeast Asia for the protection and management of select priority river basins that drain into four large marine ecosystems in the Southeast Asian Region, the Bay of Bengal, South China Sea, Gulf of Thailand and Indonesian Sea. This year, the Integrated River Basin Management Project saw the project inception and establishment of the governance mechanism at the regional level, including the establishment of the Regional Project Management Unit at PRF and the approval and adoption of the 2023 workplan and budget. The six AMS proceeded in securing approval of the project in line with their respective government policies and procedures and initiated consultations at national and river basin levels to discuss the project’s implementing arrangements. Regional activities were also initiated including the development of State of River Basin Reporting Guidelines, Gender Equality and Social Inclusion Analysis, capacity development activities, and knowledge management and communication outreach.
-
Biofouling Management in the Seas of East Asia Regional Action Plan
The challenges posed by biofouling require responses at local, national, and regional levels. The link to international shipping is crucially important, especially so in East Asia, which is already the global hotspot for shipping despite continuing advances in its economies. During the regional meeting of the GloFouling Partnerships Project in September 2023, the Regional Action Plan on Biofouling Management was approved as a response to the need.