PM10 Dust And Chemical Characterisation Of
Aerosols In Flanders, Belgium
Author(s)
E. Roekens, J. Dumollin and C. Matheeussen
Abstract
In the telemetric network of Flanders the total amount of PM10 dust is measured
since 1995. In the period 1970-1997 the black smoke content was measured
extensively. At the beginning, black smoke concentrations up to 60 and 100
ug/nf as moving annual values were measured. The concentrations were
reduced to 10 to 30 ug/nf in the nineties. In the networks heavy metals, PAHs
and dioxins specific components of the aerosols are measured. The lead content
of outdoor air decreased significantly, as well in agglomerations, as in industrial
areas. However, in some industrial zones the content of Pb and other metals in
the air remains too high. The concentration of benzo(a)pyrene in 1998 was lower
than 1 ng/nf as annual mean. A significant decrease in the dioxin deposition was
noticed in th
Keywords
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