Why these river profiles matter

The 10 profiles below represent the highest-emission outfalls in the mapped dataset and help explain why short, urban, coastal rivers can matter as much as better-known continental systems. Values are modeled annual plastic mass reaching the ocean, not direct continuous measurements at each river mouth.

Pasig River

Philippines, Pacific basin. Rank #1 with 62,592 mt/yr modeled emissions through Metro Manila toward Manila Bay.

Tullahan River

Philippines, Pacific basin. Rank #2 with 13,450 mt/yr modeled emissions from a heavily urbanized catchment north of Manila.

Ulhas River

India, Indian basin. Rank #3 with 13,433 mt/yr modeled emissions through the Mumbai metropolitan region.

Klang River

Malaysia, Pacific basin. Rank #4 with 12,816 mt/yr modeled emissions through Kuala Lumpur and port-adjacent areas.

Meycauayan River

Philippines, Pacific basin. Rank #5 with 12,398 mt/yr modeled emissions from Bulacan and the Manila Bay drainage area.

Pampanga River

Philippines, Pacific basin. Rank #6 with 9,340 mt/yr modeled emissions from Central Luzon toward Manila Bay.

Libmanan River

Philippines, Pacific basin. Rank #7 with 7,088 mt/yr modeled emissions from the Bicol region.

Ganges River

India and Bangladesh, Indian basin. Rank #8 with 6,222 mt/yr modeled emissions in this outfall dataset.

Rio Grande de Mindanao

Philippines, Pacific basin. Rank #9 with 5,256 mt/yr modeled emissions from Mindanao toward coastal waters.

Agno River

Philippines, Pacific basin. Rank #10 with 4,637 mt/yr modeled emissions from Pangasinan and nearby watersheds.

How to Cite This Page

Plastic Bank. "River Plastic Emissions Profiles." Rivers Carrying Plastic to the Ocean. https://rivers.plasticbank.com/rivers. Reviewed June 2, 2026.