Record Display for the EPA National Library Catalog


Main Title Hydrogen Peroxide Formation from the Photooxidation of Formaldehyde and Its Presence in Rainwater.
Author Bufalini, J. J. ; Lancaster, H. T. ; Namie, G. R. ; Gay, Jr, B. W. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1979
Report Number EPA/600/J-79/021;
Stock Number PB-298 523
Additional Subjects Air pollution ; Hydrogen peroxide ; Rain ; Samples ; Formaldehyde ; Concentration(Composition) ; Photochemistry ; Oxidation ; Atmospheric chemistry ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-298 523 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
The photooxidation of formaldehyde with sunlamps (E(max) = 3100 A) produces hydrogen peroxide (H2O2) at varying concentrations depending upon the amount of water vapor present. It is postulated that the variable production of H2O2 is a result of condensation on the reactor surface. Rainwater samples were also analyzed for H2O2. Summer rain in the Research Triangle area of North Carolina contained as much as 200 ppb (w/w) of H2O2. Contrastingly, rainwater collected in December contained much less H2O2, usually 2-8 ppb. The lower concentrations found in the colder conditions is attributed to a decrease in photochemical activity.