Abstract
The physico-chemical characteristics and possible formation mechanisms of negative air ions are considered. It was found that the products of oxygen and nitrogen negative ionization reduce ferricytochromec and nitroblue tetrazolium, and that these reactions were inhibited by superoxide dismutase. The interaction of negatively ionized oxygen with water led to hydrogen peroxide accumulation, which was inhibited by tetranitromethane or catalase. Nitrogen ionization under these conditions caused the formation of the hydrated electron e —aq and the superoxide anion O —2 . The data obtained indicate that the biological activity of negative air ions may be dependent on superoxide. The generation of reactive oxygen ions in the gas phase and also at a gas/water interface is described. A scheme for superoxide production under oxygen and nitrogen ionization is proposed.
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Goldstein, N.I., Goldstein, R.N. & Merzlyak, M.N. Negative air ions as a source of superoxide. Int J Biometeorol 36, 118–122 (1992). https://doi.org/10.1007/BF01208923
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DOI: https://doi.org/10.1007/BF01208923