The layer normally absorbs 95 to 99.9 percent of the ultraviolet radiation from the sun, protecting life on Earth from this biologically damaging form of energy.

• 臭氧层通常能吸收95%25－99.；9%25的来自太阳辐射的紫外线，保护地球上的生命免受这种形式的能量的生物性损害。