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A number of mitigation techniques exist to reduce the emissions of pollutant gases and greenhouse gases (GHGs) from anaerobic storage of livestock manure.Nanoparticle (NP) application is a promising mitigating treatment option for pollutant gases,but limited research is available on the mode of NP application and their effectiveness in gaseous emission reduction.In this study,zinc silica nanogel (ZnSNL),copper silica nanogel (CuSNL),and N-acetyl cysteine (NACL) coated zinc oxide quantum dot (Qdot) NPs were compared to a control lacking NPs.All three NPs tested significantly reduced gas production and concentrations compared to non-treated manure.Overall,cumulative gas volumes were reduced by 92.73％-95.83％,and concentrations reduced by 48.98％-99.75％ for H2S,and 20.24％-99.82％ for GHGs.Thus,application of NPs is a potential treatment option for mitigating pollutant and GHG emissions from anaerobically stored manure.