China's most ecologically diverse province, Yunnan, is aggressively exploiting non-ferrous metals and fuelling the already serious situation of heavy metal pollution...Tests showed that cadmium and lead contamination in the area is widespread. Further analysis revealed that the samples' cadmium, lead and zinc content have a direct correlation to proximity to the Jinding Zinc Industrial Smelting Plan...review of blood lead poisoning cases across China over the past 10 years has found that a third of all cases are caused by lead-zinc smelting...As much of China, under guidance and pressure from central government, acts to clean up its air, soil and water, polluting industries are expanding aggressively in western China. The Yunnan Provincial Government is deepening environmental and health hazards through its expansion of the non-ferrous metal industry....