Photolysis of atmospheric ozone in the ultraviolet region.

TLDR: The near-ultraviolet (UV) photochemistry of ozone remains a topic of great contemporary interest and research interests include chemical reaction processes in the atmosphere and development of instruments for atmospheric gases and particles.

Abstract: The near-ultraviolet (UV) photochemistry of ozone remains a topic of great contemporary interest. Figure 1 shows the absorption spectrum of ozone in the UV region between 195 and 345 nm at 295 K, which is plotted using the data measured by Malicet et al.1 The UV absorption spectrum of O3 consists of two bands. The wide bell-shaped absorption peaking at approximately 250 nm is called the Hartley band. The vibrational structure in the long wavelength edge of Hartley band in the 310-360 nm region is called the Huggins band. Table 1 lists the threshold wavelengths for the dissociation processes to various * To whom correspondence should be addressed. Fax: +81-53389-5593. E-mail: matsumi@stelab.nagoya-u.ac.jp. Yutaka Matsumi earned his doctorate degree in Chemistry at Tokyo Institute of Technology in 1981. After he spent several years in private companies, he was an associate professor at Hokkaido University for nine years. He has been at the Solar-Terrestrial Environment Laboratory at Nagoya University since 1997. His research interests include chemical reaction processes in the atmosphere and development of instruments for atmospheric gases and particles.