engleski

Polychlorinated dibenzo-p-dioxin and dibenzofuran emissions from Croatian metallurgical industry

The group of pollutants consists of persistent organic pollut ions represented by polycyclic aromatic hydrocarbon, polychlorinated biphenyls, polychlorinated dibenzo -pdioxins, and polychlorinated dibenzofurans are the least explored of all known pollutants generated in metallurgical processes, in terms of the impact of their emissions to the environment. Based on the experience of industrialized countries which at the same time are the largest iron and steel manufacturers, the potential emissions of dibenzo -p-dioxins and polychlorinated dibenzofurans from metallu rgical processes during the 1990-2005 period in Croatia were estimated. The estimated total emission of dibenzo -p-dioxins and polychlorinated dibenzofurans from metallurgical processes to the environment during the 1990 -2005 period in Croatia was 4.681g I-TEQ, while annual emission in the same period ranged from 0.886g I -TEQ a-1 in 1990 to 0.159g I-TEQ a-1 in 1995. Emissions of these compounds from metallurgical processes that were active in the less recent past were also calculated and the values recorded for the 1950-2005 period ranged from 5.853g I -TEQ a-1 in 1975 to 0.159g I-TEQ a-1 in 1995.

PCDDs; PCDFs; emission; metallurgy

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