| River | Country | tonnes/year | % Correct |
|---|---|---|---|
| Amazon(main river) | Brazil/Peru/Colombia/Ecuador | 39,000 | 96%
|
| Yangtze | China | 333,000 | 96%
|
| Xi | China | 74,000 | 93%
|
| Ganges | India/Bangladesh | 115,000 | 93%
|
| Huangpu | China | 41,000 | 89%
|
| Mekong | Thailand/Cambodia/Laos/China/Myanmar/Vietnam | 23,000 | 86%
|
| Zhuijang | China | 14,000 | 82%
|
| Hanjiang | China | 13,000 | 82%
|
| Dong | China | 19,000 | 68%
|
| Irrawaddy | Myanmar | 35,000 | 50%
|
| Kwa Ibo | Nigeria | 13,000 | 46%
|
| Magdalena | Colombia | 17,000 | 36%
|
| Serayu | Indonesia | 17,000 | 36%
|
| Solo | Indonesia | 33,000 | 29%
|
| Cross | Nigeria/Cameroon | 40,000 | 29%
|
| Pasig | Philippines | 39,000 | 21%
|
| Brantas | Indonesia | 39,000 | 18%
|
| Progo | Indonesia | 13,000 | 18%
|
| Imo | Nigeria | 22,000 | 14%
|
| Tamsui | Taiwan | 15,000 | 11%
|