"Concentration of 2,2',3,3',4,5-hexachlorobiphenyl {PCB129 CAS 55215-18-4} per unit dry weight of sediment"@en .
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"SDN:P01::PCBSD231" .
"The quantity or mass of the specified analyte contained in a sample of unsieved sediment normalised to a unit of dry weight."@en .
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