H 2 O 2 levels in rainwater collected in south Florida and the Bahama Islands
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H 2 O 2 levels in rainwater collected in south Florida and the Bahama Islands

  • Author(s): Zika, R.
  • Saltzman, E.
  • Chameides, W. L
  • Davis, D. D
  • et al.
Abstract

Measurements of H2O2 in rainwater collected in Miami, Florida, and the Bahama Islands area indicate the presence of H2O2concentration levels ranging from (1–7)×10−5 M. No systematic trends in H2O2 concentration were observed during an individual storm, in marked contrast to the behavior of other anions (e.g., [NO3 ], [SO4 =], and [Cl]). The data suggest that a substantial fraction of the H2O2found in precipitation is generated by aqueous-phase reactions within the cloudwater rather than via rainout and washout of gaseous H2O2.

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