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Title:
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Atmospheric dispersion of heavy metals and polycyclic atomatic hydrocarbons from motorways: a research strategy
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Author(s):
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Published by:
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Publication date:
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ECN
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1997
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ECN report number:
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Document type:
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ECN-C--97-024
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ECN publication
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Number of pages:
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Full text:
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32
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Download PDF
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Abstract:
To determine the fate of heavy metals and PAH emitted on motorways, it isessential that the actual size of the airborne particles in the vicinity of
roads is measured. When the size distributions of the emitted aerosol are
known, atmospheric dispersion models can be used to calculate spatial
patterns of concentration and deposition from the emission estimates. In this
report an inventory is presented of available techniques for sampling and/or
sizing of aerosol and of available atmospheric dispersion models.
Reconnaissance measurements are performed of the concentration and size
distribution of aerosol and spray at the A2 motorway near Abcoude in The
Netherlands. A research strategy is proposed to determine the dispersion of
these traffic emissions, based on available instrumentation and models and
the reconnaissance measurements. 7 figs., 3 tabs., 7 refs.
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