Earthworms could be used to extract toxic heavy metals, including cadmium and lead, from solid waste from domestic refuse collection and waste from vegetable and flower markets, according to researchers.![][1]
[1]: http://feeds.feedburner.com/~r/sciencedaily/earth_climate/recycling_and_waste/~4/mccQWl0QbHY
URL: http://feeds.sciencedaily.com/~r/sciencedaily/earth_climate/recycling_and_waste/~3/mccQWl0QbHY/120816133420.htm
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