Ozone gas has been known to be highly reactive, it depends of where it is located, which can be either beneficial or harmful to human health.
ozone
Death Rates Relative To Climate Change, Will Rise In Several European Countries
The European Respiratory Society’s Annual Congress in Amsterdam, forecasts that Belgium, France, Spain and Portugal will see the biggest climate induced increase in ozone related deaths over the next 60 years.
Hay Fever Rise In Europe Is Related To Carbon Emissions
General practitioner diagnoses of allergic rhinitis in the UK, which includes hay fever that has risen by 30 percent between 2001 and 2005.
Ultraviolet Radiation Exposure From Sun, Left Whales Sunburned
Like humans, the light skinned whales seemed to have the most difficulty dealing with the sun. Blue whales had more severe skin damage than their darker skinned counterparts, fin whales and sperm whales, even though the latter spend so much time at the surface.