Abstract
Sampling and analyses of chloroaromatic compounds emitted from the metal reclamation plant of Kuusakoski Ltd in Heinola, South Finland, were continued in order to find out formation pathways and to follow the impact of process improvements done in 1991–1992. Especially, process gas cleaning by baghouse filter at aluminum smelter plant (ALS) and by scrubber at car schredding (CSH) were successful in emission control. At ALS, reductions of polychlorinated dioxins, furans, planar PCB's and dibenzothiophenes were better that 90, naphthalenes 78, other PCB's 73, chlorobenzenes 51 and chlorophenols 43 per cent. CSH scrubber gave similar results.
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