Exempel på ozone

• Ozone and chlorine dioxide are powerful oxidants that produce less well-known harmful by-products, but do not provide a disinfectant residual.

• You once testified before a congressional commit tee on ozone depletion.

• In 1983, the environmental standards were set for other major pollutants: carbon monoxide, nitrogen dioxide, fine particulates, and ozone.

• Their environmental policies are focused on some global issues, such as climate change and ozone layer depletion.

• Other compounds that may be introduced continuously into the waterlines during patient treatment are hydrogen peroxide and ozone.

• As winds sweep these chemical pockets into middle latitudes they encounter sunlight and trigger rapid ozone destruction.

• Given the significance of the stratospheric ozone layer, concern regarding the effects of pollution of the stratosphere has been expressed in recent years.

• The altitude at which the energy is released will affect the extent of ozone depletion.

• Injection of chlorine into the stratosphere would probably be required for significant volcanic-induced ozone depletion.

• The stratospheric dust cloud will mitigate the initial effects of ozone depletion.

• The obtained data include the survey of the atmospheric ozone and its trends, including seasonal ozone depletion in the polar regions.

• The whole appliance is continually vented with forced air to prevent ozone accumulation in the path of the beam.

• Minor changes occurred in relation to which of the temperature, ozone and consultation variables appeared in the final models.

• The ozone layer is monitored regularly and there are now signs that the ozone layer has stabilised.

• Silent discharge is mainly used to produce ozone, but this method has low ozone yield, and improvement in the ozone yield is thus highly desirable.