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About 3.33 million hectares (8 million acres) of China's farmland is too polluted to grow crops, a government official said on Monday, highlighting the risk facing agriculture after three decades of rapid industrial growth.
China has been under pressure to improve its urban environment following a spate of pollution scares.
But cleaning up rural regions could be an even bigger challenge as the government tries to reverse damage done by years of urban and industrial encroachment and ensure food supplies for a growing population. .....
How uncomforting! The cleanup bill for air pollution alone is $290 billion. Give that State TV amazingly promotes the "Benefits of Smog" one has to wonder how many acres of China's farmland are really polluted, and what a proper cleanup job would actually cost.
The biologic half-life of cadmium in the kidney is estimated to be between 6 to 38 years; the half life of cadmium in the liver is between 4 and 19 years (ATSDR 1999). These long half-lives reflect the fact that humans do not have effective pathways for cadmium elimination. Cadmium has no known biologic function in humans. Bioaccumulation appears to be a by-product of increasing industrialization.