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- Aerosol Measurement
- Germicidal
- Ozone Column
- Photoallergy
- Photobiology
- Photostability
- Phototherapy
- Phototoxicity
- Radiometry
- UVCuring
- UVHazard
The ozone column is comprised of O3, a tri-atomic allotrope of oxygen with a pale blue appearance and a distinctive pungent odor. Ozone exists in the Earth's atmosphere as a gas. Ozone is highest in concentration in the stratosphere, the layer of the atmosphere located between the troposphere and the mesosphere approximately 10-50 kilometers above the Earth's surface. Stratospheric ozone is produced naturally and helps to protect life from the harmful effects of solar ultraviolet radiation where it absorbs the sun's ultraviolet radiation with wavelengths up to 290nm.
Over the last 20 years, levels of stratospheric ozone have been declining globally, especially in Antarctica. It is determined that chlorine molecules released from the decomposition of chlorofluorocarbons are primarily responsible for ozone destruction in the stratosphere.
Ozone Measurement Equipment
Measuring the ozone column can be performed using a filter based Ozonometer such as the Microtops II™ Ozonometer. The Microtops II™ Ozonometer provides an accurate means of measuring the ozone column within 2% of dobson measurements. With hundreds of units being used by Weather Monitoring Stations, Atmospheric Laboratories, and Universities the Microtops II™ Ozonometer has been providing quality ozone column measurements for over 15 years.
> Click here for more information on the Microtops II™ Ozonometer
Papers and Protocols on Ozone Measurement
> A Comparison of the New Filter Ozonometer MICROTOPS II™ with Dobson and Brewer Spectrometers at Hohenpeissenberg (108K) U. Kohler - Reprint from Geophysical Research Letters
> WMO/UNEP Global Ozone Research and Monitoring Project No.3 (782K) Report of WMO's first UV meeting Geneva May 1977
> Absolute Measurement and Modelization of 305.5 nm Direct Spectral Solar Radiation in Rosario, Argentina (43K) Work published in Spanish in "Avances en Energias Renovables y Medio Ambiente", Vol. 2, 11.53-11.56 (1998).
> A Comparison of Spectroradiometers to Radiometers for UV Radiation Measurements (43K) Daniel Berger
> UV and Ozone Measurements Provide Meteorological Data
