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Watch live: Pacific Palisades fire burns nearly 3,000 acres in Los Angeles amid extreme winds A brush fire has spread to nearly 3,000 acres in Los Angeles. The flames are being fueled by a severe ...
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.
NBC Universal 2 days ago The families of L.A. wildfire victims confront the failures that prevented escape. One month after the Los Angeles wildfires, the public and California’s government are ...
Here's the forecast for the Big Game on Sunday: 100 percent chance of party dips. Hosts and hostesses know that a good dip -- either hot or cold -- will wow the crowd at the wa… Associated Press ...
The WHO-standard ultraviolet index is a widely publicized measurement of total strength of UV wavelengths that cause sunburn on human skin, by weighting UV exposure for action spectrum effects at a given time and location. This standard shows that most sunburn happens due to UV at wavelengths near the boundary of the UVA and UVB bands.
On the positive side, UV exposure enables the synthesis of vitamin D 3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [ 2 ] [ 3 ] While vitamin D can also be obtained through dietary supplements, [ 4 ] UV exposure offers benefits such as enhanced subdermal nitric oxide production and improved ...
The Santa Ana winds in Southern California sweep from the deserts and across the Los Angeles metropolitan area pushing smoke from wildfires far out into the Pacific Ocean. The Santa Ana winds are strong, extremely dry offshore winds that characteristically sweep across Southern California and northern Baja California during late September into ...
Another day of gusty winds is forecast Wednesday for Southern California, where a rare "Particularly Dangerous Situation" red flag warning continues until 3 p.m. for western Los Angeles County and ...