In developing countries, inadequate sanitation and sewage treatment facilities result in the discharge of untreated sewage into water bodies, leading to contamination.

The International Convention for the Prevention of Pollution from Ships (MARPOL) is designed to minimize pollution of the seas by oil, chemicals, sewage, and other harmful substances from ships.

UNEP is the leading global environmental authority that coordinates efforts to address water pollution and other environmental issues.

The ICPR is an intergovernmental organization that coordinates efforts to protect the Rhine River from pollution and promote sustainable water management.

The Great Lakes Water Quality Agreement aims to protect and restore the water quality of the Great Lakes ecosystem through cooperative efforts between the United States and Canada.

The Helsinki Convention is an international treaty that aims to protect the marine environment of the Baltic Sea from pollution and promote sustainable development in the region.

The MSRC is an intergovernmental organization that coordinates efforts to protect the Mediterranean Sea from pollution and promote sustainable development in the region.

The Oslo Convention is an international treaty that aims to protect the marine environment of the North Sea from pollution and promote sustainable development in the region.

The BSC is an intergovernmental organization that coordinates efforts to protect the Black Sea from pollution and promote sustainable development in the region.

The Tehran Convention is an international treaty that aims to protect the marine environment of the Caspian Sea from pollution and promote sustainable development in the region.

The RSC is an intergovernmental organization that coordinates efforts to protect the Red Sea from pollution and promote sustainable development in the region.

The Kuwait Convention is an international treaty that aims to protect the marine environment of the Persian Gulf from pollution and promote sustainable development in the region.

The ASC is an intergovernmental organization that coordinates efforts to protect the Arabian Sea from pollution and promote sustainable development in the region.

The Colombo Convention is an international treaty that aims to protect the marine environment of the Bay of Bengal from pollution and promote sustainable development in the region.

The SCSC is an intergovernmental organization that coordinates efforts to protect the South China Sea from pollution and promote sustainable development in the region.