World's most polluted cities
POSTED: 09:23 AM PST Jan 14, 2013
UPDATED: 06:22 AM PDT Mar 29, 2013
Take a look at some of the world's most polluted cities, as ranked and compiled by Time, the Blacksmith Institute and ABC Environment.
Central Kalimantan province, Indonesia -- According to ABC Environment, the largest concentration of people at risk from mercury pollution is in Indonesia. In Borneo's Central Kalimantan province, mercury is used to extract gold from ore, a process is estimated to release 99,000 pounds of mercury into the environment each year
