Presents information about fluorocarbons (HCFC, HFC, PFC) and sulphur hexafluoride (SF6), including applications, physical and chemical properties, environmental impact and regulatory aspects.

Offers worldwide ozone and UV calibration services to customers with Brewer Ozone Spectrophotometer instruments.

Provides a comprehensive technical primer on the ozone layer and its depletion, as well as access to real-time and historical monitoring data, descriptions of instruments used to detect ozone, and related information and links.

Analyses of material flows of chemicals in the environment, including chemicals damaging the ozone layer. [Site in English and German. Flags are language selectors.]