The document discusses several of the most polluted places on Earth, including La Oroya, Peru where a metal smelter has caused nearly all local children to suffer from lead poisoning and respiratory issues. Norilsk, Russia is also mentioned as having a large smelting complex that has reduced average life expectancy in the city to up to 10 years lower than the rest of Russia due to pollution. Other heavily polluted locations highlighted include the Citarum River in Indonesia, which over 5 million people rely on for water, and Kabwe, Zambia, where children have lead levels 10 times higher than acceptable EPA limits.