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Organic chlorine compounds in lake sediments. III. Chlorohydrocarbons, free and chemically bound chlorophenols |
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| Authors: | Jaakko Paasivirta Hannu Hakala Juha Knuutinen Terttu Otollinen Jukka Srkk Leena Welling Raija Paukku Reino Lammi |
| Institution: | a Department of Chemistry, University of Jyväskylä Kyllikinkatu 1–3, SF-40100, Jyväskylä, Finland b Department of Biology, University of Jyväskylä Yliopistonkatu 9, SF-40100, Jyväskylä, Finland c Institute for Environmental Research, University of Jyväskylä Tellervonkatu 8, SF-40100, Jyväskylä, Finland d Visaforest Co, Box 42, SF-68601, Pietarsaari, Finland |
| Abstract: | Chlorohydrocarbons and free and chemically bound chlorophenols, catechols and guaiacols were measured from lake sediments in Central Finland. Chlorohydrocarbons occurred at low backround levels except chlorocymenes from pulp mills and PCBs near the city of Äänekoski, where a local leakage occurrs. Free chlorophenols (hexane extractables) were found in all 18 areas studied, but the bound ones (extracted with strong alkali) only in the pulp mill reciepient lakes where they dominated. Preliminary analyses of chemically bound chlorophenols in high molecular fractions of spent bleach liquors and pulp mill effluents indicated that majority of chlorocatechols and guaiacols are bound already in the factory. |
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