Ultraviolet Radiation

Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionize atoms, it can cause chemical reactions and causes many substances to …

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EHT: Environmental Health Trust · 27 October 2023 English

On August 13, 2021, the United States Court of Appeals for the District of Columbia Circuit ruled in our lawsuit against the FCC that the decision by the Federal Communications …

radiation treatments for cancer; non-ionizing ultraviolet radiation provides treatment of skin condi- tions pesticides, food additives, air pollu- tion, ultraviolet radiation, and more broadly climate change, on children’s


World Bank Group · 18 October 2023 English

Climate change has been called the most important threat to human health in the 21st century. It is estimated that if thetemperature rises and its impact on the other climatic …

Floods Heat waves Increased exposure to ultraviolet radiation Landslides Exposure to pollutants (forest


McMaster Health Forum · 18 October 2023 English

COVID-19 Living Evidence Synthesis 15.1: Effectiveness of ventilation for reducing transmission of COVID-19 and other respiratory infections in non-health care community-based settings

novel coronavirus: A systematic review of ultraviolet radiation. PLoS One 2022;17(4);e0266487. PMID:35395010


World Bank Group · 7 October 2023 English

respiratory infections, while intensified ultraviolet radiation is likely to increase the incidence of skin


PIK: Potsdam-Institut fur Klimafolgenforschung · 4 October 2023 English

The Cryogenian period (720–635 million years ago) in the Neoproterozoic era featured two phases of global or near-global ice cover, termed ‘Snowball Earth’. Climate models of all kinds indicate that …

infrared and up to 0.62 for visible and ultraviolet radiation. Snow-covered sea ice has maximum clear-sky


American Gas Association · 2 October 2023 English

The title of the Guide was revised for the 2015 Edition to "Guide for Gas Transmission, Distribution, and Gathering Piping Systems." FOREWORD The primary purpose of GPTC Z380.1 "Guide for …

in a metallic casing; (2) Protected from ultraviolet radiation; and (3) Not allowed to exceed the pipe material. (b) Ultraviolet radiation. Methods to protect plastic pipe from ultraviolet radiation include the


World Bank Group · 30 September 2023 English

Climate change has been called the most important threatto human health in the 21st century. It is estimated that if thetemperature rises and its impact on the other climatic variablescontinues …

Floods Heat waves Increased exposure to ultraviolet radiation Landslides Exposure to pollutants (forest


World Bank Group · 30 September 2023 English

Climate change has been called the most important threatto human health in the 21st century. It is estimated that if thetemperature rises and its impact on the other climatic variablescontinues …

Floods Heat waves Increased exposure to ultraviolet radiation Landslides Exposure to pollutants (forest


WMO: World Meteorological Organisation · 26 September 2023 English

The President underlined the important role of the Executive Council in preparing the next session of the World Meteorological Congress, which will elect the officers and the members of the …

greenhouse effect and the effect of ozone on ultraviolet radiation; describe the heat balance at the Earth’s Watch Program (WMO-GAW)/World Ozone and Ultraviolet Radiation Data Centre (WOUDC) [Data]. Retrieved [YYYY-MM-DD]


PICES: North Pacific Marine Science Organization · 18 September 2023 English

http://www.pices.int/PICES-2023

bacteria, microscreen filtration/ozone, ultraviolet radiation, parasitic dinoflagellates, and zooplankton


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