250- million years old mass extinction may be causing lung cancer in a Chinese region
Thursday, January 7th, 2010(Washington, January 7 : A new study has shown that the volcanic eruptions thought responsible for Earth’s largest mass extinction 250 million years ago has been linked to unusually high rates of lung cancer in a particular area of China.)
volatile substances in the coal to cause unusually high rates of lung cancer.
The study, by scientist David Large and colleagues, note that parts of China’s Xuan Wei County in Yunnan Province have the world’s highest incidence of lung cancer in nonsmoking women — 20 times higher than the rest of China. ….. (more…)
