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| Titel |
Emissions of air-borne mercury from five municipal solid waste landfills in Guiyang and Wuhan, China |
| VerfasserIn |
Z.-G. Li, X. Feng, P. Li, L. Liang, S.-L. Tang, S.-F. Wang, X.-W. Fu, G.-L. Qiu, L.-H. Shang |
| 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. 7 ; Nr. 10, no. 7 (2010-04-09), S.3353-3364 |
| Datensatznummer |
250008335
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| Publikation (Nr.) |
 copernicus.org/acp-10-3353-2010.pdf |
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| Zusammenfassung |
| China disposes of bulk Municipal Solid Waste (MSW) by landfilling, resulting
in a large quantity of mercury that enters landfills through waste. A
detailed study on atmospheric mercury emissions from MSW landfills in China
is necessary to understand mercury behavior from this source. Between 2003
and 2006, mercury airborne emissions through different pathways, as well as
mercury speciation in Landfill Gas (LFG) were measured at 5 MSW landfills in
Guiyang and Wuhan, China. The results showed that mercury content in the
substrate increased the magnitude of mercury emissions, with the highest
emission rate measured at the working face and in uncovered waste areas, and
the lowest measured near soil covers and vegetated areas. Meteorological
parameters, especially solar radiation, influenced the diurnal pattern of
mercury surface-air emissions. Total Gaseous Mercury (TGM) in LFG varied
from 2.0 to 1406.0 ng m−3, Monomethyl Mercury (MMHg) and Dimethyl
Mercury (DMHg) in LFG averaged at 1.93 and 9.21 ng m−3, and accounted
for 0.51% and 1.79% of the TGM in the LFG, respectively. Total mercury
emitted from the five landfills ranged from 17 to 3300 g yr−1, with the
highest from the working face, then soil covering, and finally the vent
pipes. |
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