Ultraviolet radiation

Explore how far the different types of ultraviolet radiation reach through the atmosphere.

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  • Ultraviolet A (UVA) – passes through the atmosphere freely, and also penetrates deeply into the skin causing damage to the cells

  • Ultraviolet B (UVB) – partially blocked (85%) by the ozone layer, does not penetrate as deeply into the skin causing sunburn

  • Ultraviolet C (UVC) – highly dangerous but stopped by the ozone layer