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Research Articles
Trends of Organochlorine Compounds in Finnish Inland Waters
Results of Mussel Incubation Monitoring 1984-1998
Sirpa Herve; Pertti Heinonen; Jaakko Paasivirta
Corresponding author:: Res. Prof. Dr. Sirpa Herve, Central Finland Regional Environment Centre, P.O.Box 110, FIN-40101 Jyväskylä, Finland; e-mail: sirpa.herve@vyh.fi
DOI: http://dx.doi.org/10.1065/espr2000.09.037 - - -
Caged common lake mussels (Anodonta piscinalis) have been used in the monitoring of organochlorine compounds in pulp and paper mill recipient watercourses of Finland annually from 1984 to 1998. Statistically significant decreasing trends of chlorophenols and chloroguaiacols originating from chlorobleaching were observed in all recipients in parallel with the decreasing discharges from the mills. Metabolites of chlorophenols, chloroanisoles and chloroveratroles had no or slightly increasing trends. Elevated PCB concentrations were measured in four watercourses. In two areas, PCBs were found to be significantly increasing, in two other cases they showed no trend. A mill producing recycled paper was apparently responsible for an increase of PCBs and DDE in recipient watercourses. Overall decreases were observed for other chlorohydrocarbons except for DDT. Material flows of chlorohydrocarbons were positively correlated with waterflows (Q) in some cases. | | Keywords: AOX; BOD; caged common lake mussel; chloroanisoles; chloroguaiacols; chlorohydrocarbons; chlorophenols; chloroveratroles; COD; DDE; DDT; freshwater monitoring; material flows; PCBs; pulp and paper mills; recycled paper; suspended matter; water flow |
8 ESPR (1) 19-26 (2001)
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