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. 2016 Dec 2;6:38103. doi: 10.1038/srep38103

Figure 5. Release behavior of H2S from the cover layer of simulated landfills.

Figure 5

(AL: anaerobic landfill; RAL: anaerobic landfill with leachate recirculation; ASL: anaerobic landfills being switched to semi-aerobic mode after day 175; RASL: anaerobic landfills being switched to semi-aerobic mode after day 175 with leachate recirculation; SL: semi-aerobic landfill; RSL: semi-aerobic landfill with leachate recirculation. The unit of H2S concentration is mg H2S m−3).