1) Beach danger 2) Beach hazard 3) Sunglasses may block them 4) Tanning bed emanations 5) Tanning hazards 6) Tanning salon emissions 
Ultra Violet (rays). Can refer to UVA, UVB, or UVC rays which all contribute to skin darkening, sunburn and increased risk of melanoma or skin cancers. A sunblock or a suncrean can help prevent this.