Ozone is the principal oxidant in the photochemical smog and a detailed study of ozone toxicity in man has been-reported '. It is also considered to be the most damaging of all air pollutants affecting vegetation '. The natural occurrence of ozone and its formation in the urban atmospheres is well k
Absorption coefficients of ozone for use in the determination of atmospheric ozone
β Scribed by C. D. Walshaw; G. M. B. Dobson; B. M. F. MacGarry
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 518 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0035-9009
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Laboratory measurements at low temperatures of the ozone absorption coefficient differences required in the standard spectroscopic measurement of atmospheric ozone are described. The measurements were made with a Dobson spectrophotometer and a quartzβiodine source. The results at the standard wavelength pairs are
The effective temperature was β 42Β°C (Β± 2Β°C).
These results are compared with those of other workers.
The error in measured total ozone amount caused by changes in stratospheric temperatures is discussed. Maximum errors of about 4 per cent seem possible in spring warmings, the apparent ozone amount being too low.
π SIMILAR VOLUMES
## Abstract A new determination of the absolute value of the absorption coefficient of ozone at 3021 Γ is described. The value obtained for the decimal absorption coefficient, measured at 20Β°C, is 3.310 Β± 0.009 (cm STP)^β1^. This figure is in excellent agreement with the value for this wavelength o
## Abstract For the purpose of total ozone measurement, the atmosphere's particulate scattering spectrum in the 305 to 340 nm interval is approximated by a parabolic function. The inclusion of this function in the usual total ozone equations gives rise to expressions which allow the experimental de