Abstract
In order to investigate the dynamic behavior of a quinone biomarker in leachate from a final landfill site for municipal solid waste, leachate was collected continuously on fine and rainy days. Four samples from five fine-weather days did not have significant differences in quinone discharge and composition. On the other hand, on rainy-weather days, the quinone composition changed significantly before and after the peak flow of leachate, because bacteria containing Q-10, namely Alphaproteobacteria, was discharged in great amounts. Subsequently, quinone discharge increased remarkably. This increase can be explained as follows. Particulate matters had relatively more Alphaproteobacteria, resulting in the high contribution to the discharge. After the rain, the quinone discharge and composition returned to close to the original conditions before the rainfall.
