A water treatment pond of Nam Boon Bleaching & Dyeing Factory, near the Samrong Canal, part of the lower Chao Phraya River basin. The waste water released from this textile factory has many different colours (from dyeing) and has a chemical smell. After passing through Bangkok, and before entering the Gulf, the Chao Phraya flows through Samut Prakan Province. A number of large canals connect to the Chao Phraya in this province, an area that houses a wide range of industrial facilities. Recent Greenpeace report reveals hazardous chemicals in the discharges from this factory, and high levels of toxic contamination in this canal. The study shows the presence of heavy metals, hormone disrupting chemicals, and human carcinogens in water and sediments.