The dirty little secret...... http://www.cbsnews.com/video/watch/?id=4586903n
88% of workers suffer from neurological, respiratory or digestive abnormalities or skin diseases. Higher than average rates of miscarriage are also reported in the region. Workers use their bare hands to crack open electronics to strip away any parts that can be reused- including chips, or valuable metals such as gold, silver, etc. Workers also "cook" circuit boards to remove chips and solders, burn wires and other plastics to liberate metals such as copper; use highly corrosive and dangerous acid baths along the riverbanks to extract gold from the microchips; and sweep printer toner out of cartridges. Children are exposed to the dioxin-laden ash as the smoke billows around Guiyu, and finally settles on the area. The soil has been saturated with lead, chromium, tin, and other heavy metals. Discarded electronics lie in pools of toxins that leach into the groundwater, making it so polluted that the water is undrinkable. To remedy this, water must be trucked in from elsewhere.
Source: Electronic waste in Guiyu
http://en.wikipedia.org/wiki/Electronic_waste_in_Guiyu