Silver nanoparticles can have a severe environmental impact if their utilisation in clothing continues to increase. If everyone buys one silver nanoparticle-treated sock a year, the silver concentration in waste water treatment plant sludge can double. If the sludge is subsequently used as fertilizer, the silver can cause long-term damage to agricultural land.
URL: http://feeds.sciencedaily.com/~r/sciencedaily/earth_climate/recycling_and_waste/~3/oNubIQQZaQs/121101073002.htm
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