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Title:
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Report on the activities of the international consultant, prof. J. Slanina, in the project "Capacity development for NOx pollution control in Guiyang"
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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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1-12-1998
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ECN report number:
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Document type:
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ECN-C--98-107
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ECN publication
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Number of pages:
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Full text:
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64
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Download PDF
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Abstract:
An evaluation was made by the IC of the objectives of the proposal, thedecisions taken during the last visit and whether the preliminary
conclusions, drawn during in the first visit were supported by the additional
information which was obtained. The acid deposition loads in Guizhou province
near Guiyang are very high, as indicated by throughfall measurements of the
Guiyang Environmental Research Institute (performed by Xiong Jiling) and PIAC
PROJECT, (University of Oslo), Norway, and warrant immediate measures to
monitor them and to control the emissions. The main reason that no severe
effects have not yet been encountered seems to be in-situ neutralization of
sulfuric acid by calcium carbonate dust, which is present in high
concentrations in Guizhou province. Obviously, as reported already earlier,
the ambient concentrations encountered in Guiyang were so high as directly
endangering human health. A new emission inventory, describing a much larger
area has been prepared. Measures taken in the past and future plans will
indeed alleviate the air pollution problems considerably. As already stated,
the plans for emission abatement are very good indeed, only care should be
taken to implement the plans in such a way that transient environmental
problems can be avoided e.g. by reducing dust loads before sulfur reduction
takes place. The present plans for control of emissions, monitoring of
deposition and occult deposition look fine and should ensure that the
positive effects of emission abatement measures can be followed and
optimized. The participants in this project have been confronted with very
unexpected situations (very high deposition loads, unsuitable conditions for
envisaged measurements etc.), see also the first report, but have managed to
adapt the direction of their investigations in order to obtain the necessary
results. refs.
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