Periphyton and mussels in monitoring chlorohydrocarbons and chlorophenols in watercourses

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Abstract
Incubations of plates for periphyton‐growth and traps containing live lake mussels (Anodonta piscinalis) followed by analysis were tested as possible monitoring methods for chloro‐organic micropollutants in watercourses. Periphyton plate method gave results which reflect the state of pollution, but application of the method was too laborious to be practical for monitoring purposes. On the contrary, the mussel incubation and analysis procedure was more convenient to apply. The results from mussels and periphyton incubated at the same areas and time were in fair agreement. Local pollution by PCB and chlorophenols was readily detected by the both methods.