Are there any international or national guidelines for quality of sediment (in reference of heavy metals) in rivers?

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Bachir Achour

Please Consider the toxicity reference values (TRV) proposed by USEPA (1999), giving for instance:

Cr : 26 (mg/Kg DW); As : 6 (mg/Kg DW); Cd : 0.6 (mg/Kg DW); Pb : 31 (mg/Kg DW)

Regards

Arezoo Agharezaei

Based on the pollution load index (PLI); the pollution load index (PLI) values were above one (>1) indicates advanced decline of the sediment quality.