Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?

Increased liver cancer is not a prime health risk of greater UV exposure from stratospheric ozone loss.

Increased skin cancer is a well-established UV risk, as UV damages skin cell DNA.

A weakened immune system is a recognised UV effect.

Eye damage such as cataracts is a genuine UV health hazard.

UV harm concentrates on tissues it reaches directly, the skin and eyes.

The stratospheric ozone layer normally screens most harmful UV radiation.