Transmittance is dependent on the tightness of the weave and on the gauge of the thread or yarn. Short sleeved shirts may be preferred and are acceptable provided the arms are well protected with sunscreen. These should preferably provide cover across the ends of the glasses to block out UVB on all sides. SLOP menu Slop on protective sunscreen to protect the face, hands and any other exposed parts for up to 3-4 hours. Contrary to popular belief, sunscreens do not prevent a tan developing, but allow the skin to tan slowly and safety without burning and predisposing the skin to skin lesions and cancers.
Some sunscreens can cause a reaction in some individuals.
There is a large number of different types on the market - please keep trying until you find one that suits you. SLAP menu Slap on a shady hat to protect the head, nose, ears, neck and eyes. In addition to protective clothing and sunscreen, workers can take additional measures to protect themselves. If this is not possible, try to erect temporary shade such as shadecloth or canvas spread over a work area. Covers should be provided over tractors and other similar machinery.