Publication Date:
2017-04-04
Description:
Naples is a large city located between two active volcanic areas: Campi Flegrei to theWand Vesuvius to the SE. The Solfatara crater, inside the caldera of the Campi Flegrei and nearest to the western quarters of the city, is a prodigious
source of natural CO2 with a mean emission rate of 1067 ton/d, i.e. seven times higher than that of Vesuvius(151 ton/d).
This study shows that the area around the Solfatara and part of the urban area of Naples are affected by the volcanic plume when atmospheric circulatory patterns are dominated by the locally frequent sea breezes.
Under these conditions the CO2 content in the air increases above normal values, reaching more than 1000 ppm in proximity to the Solfatara crater to a few tens of ppm several kilometres from the source. Although
these values do not indicate a health risk even under the most unfavourable atmospheric conditions, the volcanic source contributes to the total CO2 burden from all urban emissions and hence to overall air quality. An emission rate ten times higher than the present one would lead to an air CO2 concentration in excess
of recommended health protection thresholds.
Description:
Published
Description:
52-61
Description:
4V. Vulcani e ambiente
Description:
JCR Journal
Description:
restricted
Keywords:
CO2 dispersion; Solfatara; Gas hazard; Campi Flegrei
;
04. Solid Earth::04.08. Volcanology::04.08.01. Gases
;
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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