How to read uv index
8 Mar 2020 A UV Index reading of 2 or less means low danger from the sun's UV An easy way to tell how much UV exposure you are getting is to look for If your shadow is shorter than you are (around midday), you are being exposed to higher levels of UV radiation. Seek shade and protect your skin and eyes. Contact Us to ask a question, provide feedback, or report a problem. Factors that Affect the UV Index. Season: The UV Index is highest in spring and summer. It goes down in the fall and is the lowest in the winter. Latitude: UV radiation is strongest at the equator and goes down as you move towards the north or south poles. Altitude: Because air at higher altitudes The Ultraviolet Index (UV) is a widely used system to forecast the amount of UV radiation expected to reach the Earth's surface on a particular day. This index is issued daily to advise people on the strength of the sun's UV rays in a region. When looking at the index, one can see a numbered, UV Index Scale; UV Index Number Exposure Level Time to Burn Actions to Take; 0: Low: 60 minutes: Apply SPF 30+ sunscreen; wear sunglasses on bright days: 1; 2; 3: Moderate: 45 minutes: Apply SPF 30+ sunscreen every 2 hours; wear a hat and sunglasses; seek shade during midday hours (10 a.m. to 4 p.m.), when the sun’s rays are most intense: 4; 5; 6: High: 30 minutes A UV Index reading of 2 or less means low danger from the sun's UV rays for the average person: Wear sunglasses on bright days. In winter, reflection off snow can nearly double UV strength. If you burn easily, cover up and use sunscreen of at least SPF-30.
1 Know your UV ABCs; 2 How to read the SPF number on sunscreens A sunscreen with an SPF 100 index means the same person would be protected for
UV Forecast Map with Contours A map of the U.S. that shows contours of daily UV Index forecast values. Search for Today's UV Index Search for today's UV Index by zip code or by city and state. UV Index Information Answers to common questions about the UV Index and UV radiation. A Guide to the UV Index Brochure developed by EPA for The UV index is a value calculated each day that helps you to know how much UV radiation will reach you if you go outside. By knowing the index value for the day, you can take appropriate precautions. These precautions help you avoid sunburn in the short term and skin cancer in the long term. The UV index ranges from 1 and 11+ and alerts people about the need to adopt sun protective measures. The higher the UV index is the greater the possibility is for sun damage to your skin and eyes and the less time it takes for harm to occur. At a UV index level of 3 and above there is a need to use sun protection. "The highest UV Index ever recorded on Earth was 43.3 in Bolivia on a volcano, during the peak of summer," Duffey said. Read More Astronomers begin to unravel a new mystery held in a 'cocoon Check your region’s UV index here daily, and take the proper precautions to protect yourself when you’re outdoors. Enter your zip code or select your city. *Does not account for reflective surfaces: concrete, sand, snow or water or Altitude. Concrete, sand, water, and snow reflect 85% to 90% of the sun's UV rays.
8 Mar 2020 A UV Index reading of 2 or less means low danger from the sun's UV An easy way to tell how much UV exposure you are getting is to look for
The UV index is a value calculated each day that helps you to know how much UV radiation will reach you if you go outside. By knowing the index value for the day, you can take appropriate precautions. These precautions help you avoid sunburn in the short term and skin cancer in the long term.
The ultraviolet index or UV Index is an international standard measurement of the strength of When interpreting the UV index and recommendations, be aware that: The intensity of UV radiation reaching the surface of the earth depends on
Current Solar radiation data, Current UV Index data The solar radiation reading gives a measure of the amount of solar radiation hitting the How much UV radiation is needed to actually damage one's skin is dependant on several factors. 24 Jan 2016 A zero index tends to correspond to a reading of a few tens of uWatts/cm2 on a UV irradiance meter. How is the UV index different from a personal 22 Jul 2011 The UV Index (UVI) is a measure of the current intensity of UVB radiation in a certain location. The higher the current UV Index reading, the The UV index was developed by the World Health Organisation and has a scale of 0 – 11+ . It is a much more accurate way of determining your risk of burning than just relying on the air temperature. Check out Read More: Sun Protection How do UV rays affect my health? We know we belabor this point, but in short, nothing good comes of it. Skin cancer is the big one – unfortunately, there are
The Vantage Pro2 and Vantage VUE calculate and display the Index. The Health EnviroMonitor calculates and displays the Index and Dose-rate. It should be
UV index je jednotka užívaná při měření slunečního ultrafialového záření, podle které bychom měli volit ochranu našeho těla. Jedna jednotka UV indexu má The ultraviolet index or UV Index is an international standard measurement of the strength of When interpreting the UV index and recommendations, be aware that: The intensity of UV radiation reaching the surface of the earth depends on 28 Dec 2016 established by the World Health OrganizationExitLearn how to read the UV index Scale to help you avoid harmful exposure to UV radiation. are uniquely positioned to raise awareness of how to prevent skin cancer. Communicators should consider how best to report the UV Index international color code for different UVI values, and a choice of ready-made graphics for reporting 17 Sep 2019 The UV Index was developed in 1994 by the National Weather Service and the U.S. Environmental Protection Agency (EPA). It helps you plan If you have read How Sunburns and Sun Tans Work, you know that your skin is sensitive to ultraviolet (UV) radiation. The UV index is a value calculated each
Then watch at the display: the index on the left always shows the instant measure (one each 200 ms), while the reading on the right is the maximum reading taken during this session: that’s the one you need. UV Index Resources. Download the free UV Index smartphone app. Stay up to date with our UV Index applications. UV Alert map - Areas in the U.S. where the UV Index is forecasted to be above normal. (National Weather Service) Cities forecast bulletin - A plain text listing of forecasted UV Index UV Forecast Map with Contours A map of the U.S. that shows contours of daily UV Index forecast values. Search for Today's UV Index Search for today's UV Index by zip code or by city and state. UV Index Information Answers to common questions about the UV Index and UV radiation. A Guide to the UV Index Brochure developed by EPA for The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the two weeks around the summer solstice). Indices of 9 and 10 are common in the Mediterranean area. The Sun Index forecast refers to the daily maximum. output directly linear to UV Index; excellent cosine response, wide angle measurement; early detection of potential danger; monitor climate change by measuring UV-A-B reaching the ground; So remember: <2 = no protection needed; 3 to 7 = protection required! Slip on a shirt, slop on sunscreen and slap on a hat! 8 to 11+ = Extra protection!