Grand Canyon tourists exposed for years to radiation in museum building, safety manager says Posted on February 19, 2019 by Arizona Republic Elston Stephenson, safety manager at Grand Canyon National Park, says thousands were unknowingly exposed to…
Why Do We Ignore the Health Risks of UV Exposure Posted on July 3, 2018 by bobby mcintyre How does UV radiation cause damage? UV radiation consists of three different wavebands: UVA, UVB…