Kalimantan, Indonesia 加里曼丹（印度尼西亞）

Kalimantan, Indonesia [File photo]

Pollutant: Primarily mercury, cadmium

Population affected: 225,000+

Site description:

It has been reported that the mercury amalgamation from the gold mining common in the area results in the release of an estimated 1,000 tons of mercury every year. Kalimantan has been heavily polluted by mercury released from mining activities; this is also the reason why the region is on the list.