The worlds worst 2013: the top ten toxic threats

Blacksmith Institute and Green Cross Switzerland have published the 2013 report of the world's worst polluted places, The Top Ten Toxic Threats: Cleanup, Progress, and Ongoing Challenges. The report presents a new list of the top ten polluted places and provides updates on sites previously published by Blacksmith and Green Cross. A range of pollution sources and contaminants are cited, including hexavalent chromium from tanneries and heavy metals released from smelting operations. The report estimates that sites like those listed in the top ten pose a health risk to more than 200 million people in low- and medium-income countries.