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Skin cancer is primarily caused by chronic exposure to UV rays the heat energy emitted from our sun. The values of the Index range from zero upward and the higher the Index value, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur. In Moderate mean UVI values occur between 30 and 48 N and high UVI south of 35 N. Additionally, very high mean UVI up to 7.8 are detected south of 32 N. Figure 3. Exposure to solar ultraviolet (UV) radiation Data by country You are here: By category; Public health and environment; Ultraviolet (UV) radiation; Exposure to solar ultraviolet (UV) radiation; Regions. The index is a scale of 0 to 16+, with 0 representing minimal UV exposure risk and values higher than 11 posing an extreme risk. WebCountries; All countries (UV) radiation. In 2022, a new mobile phone application that provides localized information on ultraviolet (UV) radiation levels has been launched by the World Health Organization (WHO), the World Meteorological Organization (WMO), the United Nations Environment Programme (UNEP) and the International Labour Organization (ILO).[25]. Out of the 50 holiday hotspots, Sri Lanka has the most dangerous radiation level, with an average score of 11.75[4]. While the two countries have different baseline UV intensity requirements before issuing an alert, their common goal is to raise awareness of the dangers of over-exposure to the Sun on days with intense UV radiation. If you dont feel the hot rays of the sun you wont get sunburnt. Shirt, sunscreen and hat are a must! The National Weather Service calculates the UV Index forecast for most ZIP codes across the U.S., and EPA publishes this information. Click the buttons for Day 2, Day 3, or Day 4 to see the UV Index forecast for following days. WebUV Index worldwide. WebUV index. For example, assuming similar spectral power distributions, radiation with a UV index of 12 is twice as intense as radiation as a UV index of 6. Heraklion, Greece has an average UV index of 12. With these numbers trending upwards over the past 25 years, skin cancer is starting to take a serious toll on the health of our global population (2). UV radiation exposure is cumulative during the day. What is the coldest month in Auckland? How does UV radiationaffect yourhealth? Free application for mobile devices that describes the level of solar UV radiation at a specific location. Typical UV Index values for a range of cities worldwide are specified for the 21st of each month based on calculations with the radiation transfer model STAR. A UV index reading of 8 to 10 means very high risk of harm from unprotected sun exposure. The publication can serve as an entry point for the development and implementation of an integrated public health approach to sun protection and skin cancer prevention. Bright surfaces, such as sand, water, and snow, will increase UV exposure. Just fill out the form below. Wear protective clothing.Wear a broad brimmed hat to protect the eyes, face and neck. Typical UV Index values for a range of cities worldwide are specified for the 21st of each month based on calculations with the radiation transfer model STAR. Because of the cultural value of fair skin, no Asian countries place in the skin cancer top twenty list, despite their geographical location and average higher UV indexes. The UV Index is a measure of the intensity of ultraviolet (UV) rays from the Sun. As the Earth continually rotates in its orbit around the sun, certain countries are exposed to higher levels of UV radiation than others. Bright surfaces, such as sand, water, and snow, will increase UV exposure. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. The UV Index scale ranges from a low of zero to a high of 11+ in Canada, The highest values occur in southern Ontario, where values of 11, or even 12 on rare occasions, have occurred. Additional data sources include LegiScanexternal icon and the American Society for Dermatologic Surgery Associationexternal icon. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. WebThe monthly average maps use the same color scale and class breaks as the annual average map for the contiguous United States for the purpose of showing monthly variation relative to the annual average. A UV index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure. Reduce time in the sun between 10 a.m. and 4 p.m. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. Sun elevation: the higher the sun in the sky, the higher the UV radiation level. Share sensitive information only on official, secure websites. Copyright 1995-2020 Photius Coutsoukis (All Rights Reserved). Provisions for buildings and workplaces. Heraklion, Greece has an average UV index of 12. Some 16 million people worldwide are currently blind as a result of cataracts; of these, WHO estimates that as many as 20% may be due to UV radiation exposure. The map is created daily from National Weather Service forecast data. A tan results from your body defending itself against further damage from UV radiation. It can help individuals make healthy choices. Aside from the geographical location of where we live, cultural practices always play a major role in our sun protection practices and ideologies. In The UV-Index. July. Protect the eyes with wrap-around-design sunglasses or sunglasses with side panels. As the largest organ in the human body, our skin has a lot of surface area for the potential development of health conditions. As the rays interact with the cells in our skin, they cause disruptions and damage to the cells DNA. Historic policies such as the Montreal Protocol and the Copenhagen Amendment have already had a positive impact on the number of new skin cancer diagnoses, estimated to have prevented thousands of future cases (14). The map below shows predicted UV Index values during the solar noon hour for about 50 U.S. cities. The UV Index does not drop below 11 at any point in the year, which means that there is a constant and extreme risk of harm. WebThe first month of the spring, March, is also a hot month in Panama City, Panama, with an average temperature ranging between max 34.8C (94.6F) and min 18.4C (65.1F). WebUV levels are higher in the north of the country. However, higher UV Index values Why protection against UV radiation? The UV Index is accompanied by recommendations for sun protection and is a useful tool for planning sun-safe outdoor activities. The immune system is vulnerable to modification by environmental agents such as UV radiation, which appears to diminish the effectiveness of the immune system by changing the activity and distribution of the cells responsible for triggering immune responses. Air monitoring at Schauinsland measuring station. Additionally, wearing broad-spectrum high SPF (sun protection factor) sunscreens while spending any time outdoors is one of the best ways to protect your skin. February. WebCountries; All countries (UV) radiation. [12] When the index was designed, the typical midday summer sunlight was around 250mW/m2. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. WebThe UV index climatology shows how much UV exposure a person could get on average during each month. The recommendations below are for average adults with lightly tanned skin[citation needed] (Fitzpatrick scale of skin colour: Type II). The higher the Index value, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur. Long-term effects of UV radiation exposure of the eye may include the development of pterygium (white or creamy opaque growth attached to the cornea), and squamous cell cancer of the conjunctiva. What Might Have Been Ground reflection: grass, soil and water reflect less than 10% of UV radiation; fresh snow reflects as much as 80%; dry beach sand about 15% and sea foam about 25%. This page was last edited on 5 April 2023, at 00:51. Heraklion, Greece has an average UV index of 12. The coldest month in Auckland, New Zealand, is July , with an average high-temperature of 13.8C (56.8F) and an average low-temperature of 10.4C (50.7F) . U.S. January Solar DNI Average. It cannot be simply related to the irradiance (measured in W/m2) because the UV of greatest concern occupies a spectrum of wavelengths from 295 to 325nm, and shorter wavelengths have already been absorbed a great deal when they arrive at the earth's surface. The suns rays become stronger as you move south, and in the tropics, the index can rise to 14 or higher. It also provides time slots when to apply sun protection measures, in an effort to reduce the global burden of skin cancer and UV-related eye damage. The UVI is an important vehicle to alert people about the need to use sun protection. The higher the Index value, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur. This indicator provides state-level data on laws regarding sunscreen use in schools and indoor tanning restrictions for individuals younger than 18 years. It serves as an important vehicle to raise public awareness and to alert people about the need to adopt protective measures when exposed to UV radiation. Thank you for taking the time to confirm your preferences. Vital Graphics Series. Lets explore how human genetics (and the impact of modern pollution) are contributing to the increased numbers of skin cancer diagnoses around the world. A .gov website belongs to an official government organization in the United States. Look for Analyze this image and click on that link to add to your analysis queue. This gives a weighted figure called the Diffey-weighted UV irradiance (DUV) or the erythemal dose rate. WebCountries; All countries (UV) radiation. There is also evidence that UV radiation reduces the effectiveness of the immune system. An official website of the United States government. Two battles need to be fought to successfully achieve this goal: personal/cultural mindset changes and international action. Sunscreens protect me so I can sunbathe much longer. The UVI is a measure of the level of UV radiation. The UV Index is accompanied by recommendations for sun protection and is a useful tool for planning July. This typically occurs between 11:30 and 12:30, or between 12:30 and 13:30 in areas where daylight saving time is being observed. A higher index value indicates a greater potential for harmful effects to the skin and eyes. In Asian countries like Japan and China, pale and fair skin is the standard of beauty that many women and men strive to achieve. The UV-Index. April. A higher index value indicates a greater potential for harmful effects to the skin and eyes. The UV index is used to forecast the strength of the sun's ultraviolet rays. The maps below show monthly average UV Index values for the United States. Protection against skin and eye damage is needed. The maps below show monthly average UV Index values for the United States. Shown to be incredibly effective at reducing the penetration power of UVB rays, freshly applied SPF 50 sunscreen can block up to 98% of the UVB rays your skin is exposed to while you are out in the sun (5). June. WebUV levels are higher in the north of the country. Some ZIP Codes may not be in our database. The UV index climatology shows how much UV exposure a person could get on average during each month. Household appliances & electrical installations, Effects of static and low-frequency fields, Established effects of low-frequency fields, Discussed effects of low-frequency fields, Radiation protection relating to the expansion of the national grid, High-voltage direct current transmission, Effects of electric and magnetic fields, European limit values and regulations, Radiation protection in electromobility, The Competence Centre for Electromagnetic Fields, Research relating to power grid expansion. People with fair skin types (I and II on the chart) have lower levels of naturally occurring melanin when compared with darker skin tones (V and VI), meaning they need to take additional care to prevent severe sunburns and skin damage. A special, https://www.epa.gov/developers/data-data-products-envirofacts-uv-index-widget, Download the free UV Index smartphone app. February. Simple precautions will prevent both short-term and long-term damage of UV radiation exposure, while still making the time spent outdoors enjoyable. The UV Index is accompanied by recommendations for sun protection and is a useful tool for planning If you burn easily, cover up and use broad spectrum SPF 15+ sunscreen. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. This indicator provides state and county level data on monthly and annual average doses of UV irradiance measured daily and at noon. The National Weather Service calculates the UV Index forecast for most ZIP codes across the U.S., and EPA publishes this information. Staying out of the sun, either indoors or in shaded areas, during the four hour period around solar noon when UV radiation levels are highest is an effective means of protection. ", "SunSmart Global UV App helps protect you from the dangers of the sun and promotes public health", "Your Time in the Sun, Measured to the Minute", https://en.wikipedia.org/w/index.php?title=Ultraviolet_index&oldid=1148252647, Articles with unsourced statements from July 2022, Creative Commons Attribution-ShareAlike License 3.0. These cookies may also be used for advertising purposes by these third parties. Exposure to solar ultraviolet (UV) radiation Data by country You are here: By category; Public health and environment; Ultraviolet (UV) radiation; Exposure to solar ultraviolet (UV) radiation; Regions. The UVI was developed through an international effort by WHO in collaboration with the United Nations Environment Programme (UNEP), the World Meteorological Organization (WMO), the International Commission on Non-Ionizing Radiation Protection (ICNIRP), and the German Federal Office for Radiation Protection. The UVI is an important vehicle to alert people about the need to use sun protection. The UVI is a measure of the level of UV radiation. WebThe UV index forecast for Ireland is sourced by Deutscher Wetterdienst and is included in our regional forecasts from May to September but be aware it can only be an average for any one day over the entire country. In the evolution of humankind, our early ancestors developed additional pigmentation to their skin, presumably to help withstand the high levels of UV radiation they were exposed to. A global UV index, first standardized by the World Health Organization and World Meteorological Organization in 1994,[17] gradually replaced the inconsistent regional versions, specifying not only a uniform calculation method (the Canadian definition) but also standard colors and graphics for visual media. Although this may be in error (especially when cloud conditions are unexpectedly heavy or light), it is usually within 1 UV index unit as that which would be measured. The protection they afford depends critically on their correct application.

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