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| Titel |
Mercury emission from crematories in Japan |
| VerfasserIn |
M. Takaoka, K. Oshita, N. Takeda, S. Morisawa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 8 ; Nr. 10, no. 8 (2010-04-20), S.3665-3671 |
| Datensatznummer |
250008364
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| Publikation (Nr.) |
 copernicus.org/acp-10-3665-2010.pdf |
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| Zusammenfassung |
| Anthropogenic sources of mercury emissions have a significant impact on
global pollution. Therefore, finding uncharacterised sources and assessing
the emissions from these sources are important. However, limited data are
available worldwide on mercury emissions from crematories. In Japan,
99.9% of dead bodies are cremated, which is the highest percentage in the
world, and more than 1600 crematories are in operation. We thus focused on
emissions from crematories in Japan. The number of targeted facilities was
seven, and we used continuous emission monitoring to measure the mercury
concentrations and investigate mercury behaviour. The total mercury
concentrations in stack gases were a few μg/Nm3 (normal cubic
meters). Considering the time profile of mercury and its species in
cremations, the findings confirmed that the mercury in stack gas originated
from dental amalgam. The amount of mercury emissions was calculated using
the total concentration and gas flow rate. Furthermore, the annual amount of
mercury emission from crematories in Japan was estimated by using the total
number of corpses. The emission amount was considerably lower than that
estimated in the United Kingdom. From statistical analyses on population
demographics and measurements, future total emissions from crematories were
also predicted. As a result, the amount of mercury emitted by crematories
will likely increase by 2.6-fold from 2007 to 2037. |
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