ORIGINAL RESEARCH
Methane and Carbon Dioxide Fluxes at the Sediment-Water Interface in Reservoirs
Renata Gruca-Rokosz, Janusz Andrzej Tomaszek, Piotr Koszelnik, Ewa Czerwieniec
 
More details
Hide details
Department of Environmental and Chemistry Engineering, Faculty of Civil and Environmental Engineering,
Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
 
Pol. J. Environ. Stud. 2011;20(1):81–86
KEYWORDS
ABSTRACT
Methane (CH4) and carbon dioxide (CO2) fluxes at the sediment-water interface were studied during autumn in three reservoirs in Poland. The theoretical diffusive fluxes of dissolved pore-water carbon gases to the overlying water ranged from 0.16 mg·m-2d-1 to 3.84 mg·m-2d-1 and from 20.68 mg·m-2d-1 to 99.88 mg·m-2d-1 for methane and carbon dioxide, respectively. The comparison between the diffusive fluxes of methane at the sediment-water interface and its fluxes at the water-atmosphere interface showed that an ebullition is probably the major pathway for CH4 transport from the sediment to the atmosphere. The fluxes of CO2 at the sediment- water interface were considerably lower than its fluxes at the water-atmosphere interface. This indicates that most CO2 is generated in the water column, whereas only a small portion originates from sediments.
eISSN:2083-5906
ISSN:1230-1485