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Over this one-year study, we examined the variations of lead along the salinity gradient of the Penzé estuary (Brittany, Western Channel, France). Concentrations of total dissolved and total particulate lead ranged from 0.04 to 0.62nM and from 29 to 61μgg −1 , respectively. These values, though being higher than contamination-free systems, remain lower than those found in heavily industrialised...
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