Measurement of Cl2 in coastal urban air
نویسندگان
چکیده
[1] Measurements of Cl2 in coastal urban air were made in Irvine, California from Aug.-Nov., 2005, using negative ion atmospheric pressure chemical ionization with tandem mass spectrometry. Cl2 ranged from <2.5 to 20 ppt with a two month mean of 3.5 ± 3.5 ppt (1s) and an average noon photolysis rate of 44 ppt hr 1 Cl2. Model calculations suggest that Cl2 photochemistry results in an increase of 5– 8 ppb in daily maximum O3 levels, relative to a base case scenario without Cl2. Citation: Finley, B. D., and E. S. Saltzman (2006), Measurement of Cl2 in coastal urban air, Geophys. Res. Lett., 33, L11809, doi:10.1029/2006GL025799.
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