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Title:
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Bepaling van de ammoniakemissie uit geruimde varkensstallen
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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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1998
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ECN report number:
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Document type:
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ECN-C--98-018
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ECN publication
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Number of pages:
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Full text:
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20
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Download PDF
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Abstract:
As a consequence of the outbreak of classical swine fever in thebeginning of 1997 in the Netherlands, almost all pig stables were emptied in
the eastern part of the province Noord-Brabant. Pigpens contributed for about
60% to the emission of ammonia in the area. Therefore it was expected, that
the ammonia concentration would have substantially declined. Because this
reduction was not observed at monitoring sites, dedicated research was
performed at the end of 1997 to determine whether the empty pigsty still
emits ammonia. In this report the results on the research on the emissions of
such empty stables are described. The emissions were determined from plume
measurements using a fast ammonia sensor developed in-house. The sensor was
driven wind downwards along the empty stables. Almost all farms scanned
showed a detectable emission. The emission of pigpens still in use was much
higher than the empty ones. However, the emission of empty pigpens was
significant and estimations for the summertime indicate emission rates that
would be comparable to that of stables containing pigs. It is likely that the
residual emission is produced by the manure which was not removed from the
stables. At the time of measurement less ammonia was emitted by the empty,
unheated stables. 5 refs.
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