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Stay outside for less than 30 minutes with a UV index between 3 and 5. Wear a water-resistant, ... The numbers in SPF refer to the amount of time it would take to burn your skin. “So, an SPF of ...
Sunburn effect (as measured by the UV index) is the product of the sunlight power spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. [9] [10] The UV index is a number linearly related to the intensity of sunburn-producing UV radiation at a given point on the Earth's surface.
Sunburn is a form of radiation burn that affects living tissue, such as skin, that results from an overexposure to ultraviolet (UV) radiation, usually from the Sun.Common symptoms in humans and other animals include red or reddish skin that is hot to the touch or painful, general fatigue, and mild dizziness.
An MED is the amount of UV radiation that will produce erythema (redness of the skin) within a few hours of exposure. [43] High-pressure beds use smaller, higher-wattage quartz bulbs and emit a higher percentage of UVA. [44] They may emit 10–15 times more UVA than the midday sun, [37] and have a shorter maximum exposure time (typically 10 ...
Get the Oakland, CA local weather forecast by the hour and the next 10 days.
1 UV Index. 4:50PM Sunset. 6 mph F 10 ... AccuWeather 38 minutes ago ... California are once again under critical fire weather conditions through Wednesday as the Franklin Fire continues to burn.
Consider the sunburn, a deterministic effect: [4] when exposed to bright sunlight for only ten minutes [5] at a high UV Index, that is to say a high average dose rate, [6] the skin can turn red and painful. The same total amount of energy from indirect sunlight spread out over several years - a low average dose rate - would not cause a sunburn ...
--UV Index. 4:54PM Sunset. 7 mph F 11 ... Explosive Franklin Fire forces thousands to evacuate as 4,000 acres burn in Malibu. ... Last-minute holiday shoppers may face rainy, snowy weather.