Direct measurements of N02 photolysis rates for Mexico City

T. CASTRO, L. G. RUÍZ SUÁREZ, CARLOS GAY, M. HELGUERA, J. C. RUÍZ SUÁREZ

Abstract

Direct measurements of the rate of NO2 photolysis to NO and 0(3P) are reported as photolysis frequencies J(NO2) for Mexico City. These frequencies were measured using a flow reactor, where a known concentration of NO2 was photolysed for different experimental exposure times. UV radiation was measured with an Eppley UV radiometer. Comparisons with calculated values using a radiation transfer model, and Madronich's formula are shown.

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