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

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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