most polluted places

Sukinda, India

Sukinda, India-Home to one of the world’s largest chromite mines—used to make steel stainless, among other things—and 2.6 million people, the waters of this valley contain carcinogenic hexavalent chromium compounds courtesy of 30 million tons of waste rock lining the Brahmani River. “Hexavalent chromium is very toxic and very mobile,” notes David Hanrahan, Blacksmith’s London-based director of global programs.

Vapi, India

Vapi, India-This town at the end of India’s industrial belt in the state of Gujarat houses the dumped remnant waste of more than 1,000 manufacturers, including petrochemicals, pesticides, pharmaceuticals and other chemicals. “The companies treat wastewater and get most of the muck out,” Hanrahan says. “But there’s nowhere to put the muck, so it ends up getting dumped.”