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.
Bhopal, India -- In December 1984, a toxic gas leak at a local pesticide plant that killed nearly 4,000 people outright, rising to 15,000 in the coming week in one of the world's worst industrial disasters. Even now, thousands in Bhopal suffer and die from chronic illnesses largely due to contaminated groundwater.
