Implications of widespread dark production and decay of reactive oxygen species in natural waters
Light dependent and independent reactions produce and consume reactive oxygen species (ROS), including hydrogen peroxide (H2O2) and superoxide (O2-), in natural waters. ROS can act as oxidants or reductants to biologically important metals such as Fe, Cu, and Mn influencing their bioavailability. ROS produced in natural waters have also been linked to global phenomena such as harmful algal bloom fish kills and coral bleaching. In this thesis, we focus on the light independent (dark) reactions of ROS that are produced and decomposed by particle-associated processes, most likely microorganisms. ...
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