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Worms bear sludge load http://apocadocs.com/s.pl?1203636753
"Pharmaceuticals and personal care products (PPCPs) end up in the tons of solid sludge left behind by wastewater treatment processes. Those so-called biosolids are often repackaged and sold as fertilizers for both industrial and small-scale agriculture. In a new survey, published in ES&T (DOI: 10.1021/es702304c), researchers show for the first time that those compounds can turn up in earthworms ... Bioaccumulation of PPCPs by worms is not entirely a surprise, according to Stockholm University's Cynthia De Wit, who points to her own work looking at PBDEs and other persistent compounds in earthworms. However, the new research underscores that worms could serve as monitoring organisms, she says. Because the worms seem to concentrate compounds that may be present at undetectable levels in the soils, they can be "a sort of sentinel, or magnifying glass of what's in the soil," she adds."
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[Read more stories about:
canary in coal mine, contamination, soil issues]
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From canaries in the coal mine to earthworms in the soil, other species bear too much of a load.
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