Document Type

Article

Publication Date

2001

Publication Title

Terrestrial Atmospheric and Oceanic Sciences

Volume

12

Issue

4

Pages

695-704

Abstract

Hydrogen peroxide was produced when samples of lake water were exposed to direct or filtered sunlight in which UV or UV(B+C) light was selectively removed. In all cases, the concentration of hydrogen peroxide increased linearly with time-integrated irradiance. While both visible and UV light can induce the formation of hydrogen peroxide, the contribution from the latter was disproportionately large as it was responsible for about two-thirds of the formation of hydrogen peroxide. Among the UV lights, the contributions from UV-A and UV-(B+C) light were 70% and 30% respectively. The contribution from UV-A light was equivalent to about one half of the total production of hydrogen peroxide. Thus, relative to its contribution to the total irradiance in the solar spectrum, UV-A light is the most efficient type of light for the formation of hydrogen peroxide in lake waters.

Original Publication Citation

Wong, A. Y. L., & Wong, G. T. F. (2001). The effect of spectral composition on the photochemical production of hydrogen peroxide in lake water. Terrestrial Atmospheric and Oceanic Sciences, 12(4), 695-704.

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