Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
The ozone layer is found mostly in the stratosphere, which is an area of the Earth's atmosphere at an altitude ranging from approximately 10 km (6 miles) to 50 km (31 miles) above the Earth's surface. Ozone is a molecule composed of three atoms of oxygen. It absorbs the most dangerous ultraviolet rays before they can hit the Earth, thus protecting life from their adverse effects. However, ozone depletion occurs in some areas of the globe, where dangerous UV rays can penetrate.O.5.2.3UV indexO.5.2.3.1 The UV index is a way of expressing a forecast of the amount of UV radiation at a geographical location at a given time and was developed by the World Health Organization. The aim of the index is to warn people of increased risk and to encourage them to protect themselves against the risks of skin cancer and skin damage such as sunburn. The UV index is a good way to get an idea of the UV radiation levels in the geographical area of the worksite. It is presented as a range of numbers: