Even in shade, UVB rays can do damage
The Skin Cancer Foundation Journal has issued a sun warning – about shade. An article in the latest edition put out by the nonprofit describes how sitting in the shade or wearing a hat can still result in harmful sun exposure. That's because UVB rays can reach the skin indirectly. Here's a surprising rundown on the effectiveness of non-sunscreen approaches to sun protection:
Broad-brimmed hats: SPF 5 to protect the nose, ears and neck.
Umbrellas: SPF 3 to 10. A single umbrella on the beach offers limited protection because so many ultraviolet rays are reflected under the umbrella from the sand and water.
Shade trees: Varies. Trees offer the best protection in the middle of the day when the sun is more directly overhead. If possible, choose a tree near other trees or buildings to block more of the sun. Dense foliage offers the best protection.
– MCT NEWS SERVICE