average uv index by country

UV Index 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. Exposure to solar ultraviolet (UV) radiation Using this item and referring to it is encouraged, and please use CDCs Heat and Health Tracker: 20 Skin Cancer Hot Spots In The WebCountries; All countries (UV) radiation. Predictions are made by a computer model that [12] When the index was designed, the typical midday summer sunlight was around 250mW/m2. Measurement of strength of sunburn-producing ultraviolet (UV) radiation, "Awareness, Understanding, Use, and Impact of the UV Index: A Systematic Review of Over Two Decades of International Research", "The UV index: Definition, distribution and factors affecting it", "Fast simulation tool for ultraviolet radiation at the earth's surface", "UV Spectral Irradiances & Erythemal Action Spectrum", "The Canadian Ozone Watch and UV-B advisory programs", "Environment Canada's UV Index Celebrates Ten Years: Now Bringing Sun Safety Messages to 26 Countries", "Global Solar UV Index: A Practical Guide", "Blazing World Record: Strongest UV Rays Measured in South America", "Record solar UV irradiance in the tropical Andes", "Comment on "Record solar UV irradiance in the tropical Andes, by Cabrol et al. 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]. 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. UV Index Official websites use .gov WebThese maps show the average annual, monthly and seasonal values of the UV Index over Australia for the period 1979-2007 under cloud-free conditions at local noon, when the sun is at its highest. To inform people about the risk one can expect from UV rays, the National Weather Service and the U.S. Environmental Protection Agency (EPA) have developed a daily UV Index, which is based partly on this climatology. The UVI is an important vehicle to alert people about the need to use sun protection. WebUV levels are higher in the north of the country. UV radiation levels are influenced by: Sun elevation: the higher the sun in the sky, the higher the UV radiation level. We use cookies to imporve your experience. Heraklion, Greece has an average UV index of 12. What is the coldest month in Auckland? What are static and low-frequency electric and magnetic fields? 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. 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. Table 1 below shows the average UV Index (UVI) levels for regions across New Zealand and Australia based on latitude. UV Radiation Average UV Index The UV index values are grouped into five As the largest organ in the human body, our skin has a lot of surface area for the potential development of health conditions. From The Conversation: https://theconversation.com/why-does-australia-have-so-much-skin-cancer-hint-its-not-because-of-an-ozone-hole-91850, Excess skin cancer cases due to ozone depletion, United States, 2000-2100 from Our World in Data: https://ourworldindata.org/grapher/excess-skin-cancer-cases-due-to-ozone-depletion?country=~USA. - Please bookmark this page (add it to your favorites)- If you wish to link to this page, you can do so by referring to the URL address below. Predictions are made by a computer model that accounts for the effects of sun-earth distance, solar zenith angle, total ozone amount, tropospheric aerosol optical depth, elevation, snow/ice reflectivity and cloud transmission, all of which influence the amount of UV radiation at the surface.[6]. What are the consequences of an emergency? You will be subject to the destination website's privacy policy when you follow the link. Because of this, it is recommended that everyone take adequate steps to protect themselves from excessive sun exposure (10). U.S. January Solar DNI Average. U.S. January Solar DNI Average. Lets explore how human genetics (and the impact of modern pollution) are contributing to the increased numbers of skin cancer diagnoses around the world. Protect the eyes with wrap-around-design sunglasses or sunglasses with side panels. Sunlight & UV WebThis indicator provides state and county level data on monthly and annual average doses of UV irradiance measured daily and at noon. A .gov website belongs to an official government organization in the United States. Environment Canada launched it as part of the weather forecast on May 27, 1992, making Canada the first country in the world to issue official predictions of UV levels for the next day. 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. WebWhen the UV index is presented on a daily basis, it represents UV intensity around the sun's highest point in the day, called solar noon, halfway between sunrise and sunset.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. The values of the index range from zero upward - the higher the UVI, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur. UV index To inform people about the risk one can expect from UV rays, the National Weather Service and the U.S. UV levels The recommendations below are for average adults with lightly tanned skin[citation needed] (Fitzpatrick scale of skin colour: Type II). Shirt, sunscreen and hat are a must! The UVI is an important vehicle to alert people about the need to use sun protection. Learn more about the UV Index. 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. The UVI is an international standard index that describes the level of solar UV radiation on the earths surface. WebThe Global Solar UV Index (UVI) The UVI is a simple measure of the UV radiation level at the Earth's surface. Depletion of the ozone layer, which provides a protective filter against UV radiation, may further aggravate the problem. Some sunshine prediction and advice apps have been released. In 2007, the United Nations honored UV index inventors Kerr, McElroy, and Wardle with the Innovators Award for their far-reaching work on reducing public health risks from UV radiation. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. Aside from the geographical location of where we live, cultural practices always play a major role in our sun protection practices and ideologies. For a wide range of timescales, sunburn in response to controlled UV radiation occurs in proportion to the total number of photons delivered, not varying with the intensity or duration of exposure. Identify areas where intensity may be increasing. What radionuclides can be found in food? Wearing sun protective eyewear, sunscreen, a hat, and adequate clothing to cover your skin is advised at this UV index rating to prevent the risk of sunburns. UV How does UV radiationaffect yourhealth? Countries close to the equator can experience very high UV levels in the middle of the day throughout the year. WebWhen the UV index is presented on a daily basis, it represents UV intensity around the sun's highest point in the day, called solar noon, halfway between sunrise and sunset.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. For further information on INTERSUN refer to our web site: www.who.int/peh-uv. Emmanuelle Bournay, GRID-Arendal, Tags: Index So as we can see, the top 20 countries are quite dispersed across the globe. A marked increase in the incidence of skin cancer in fair-skinned populations worldwide is strongly associated with excessive UV radiation exposure from the sun and possibly artificial sources such as sunbeds. Tracking sunlight and UV exposures in a standard way can help us identify regions of high exposure and to track trends over time. 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. As the rays interact with the cells in our skin, they cause disruptions and damage to the cells DNA. WebThe Cancers Attributable to UV Radiations. Try to avoid sun exposure between 10 a.m. and 4 p.m. WebThe UV index climatology shows how much UV exposure a person could get on average during each month. UV radiation The UV-Index. 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) . Share sensitive information only on official, secure websites. 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. UV Index Tanning is far less culturally acceptable. WebThe Cancers Attributable to UV Radiations. In some countries, sun protection times may also be issued when UV levels levels are forecast to be 3 or higher. Vital Ozone Graphics 2.0 - Climate Link is a Resource Kit for journalists, which provides them with the essential visuals, facts, links 01 Mar 2010 Sunlight & UV In countries close to the equator, the UVI can reach up to 20. If you burn easily, cover up and use broad spectrum SPF 15+ sunscreen. However, even though the incidence of skin cancer is lower in dark skinned people they are nevertheless susceptible to the damaging effects of UV radiation, especially to the effects on the eye and immune system. Cookies used to make website functionality more relevant to you. On Dec. 29, 2003, a world-record UV index of 43.3 was detected at Bolivia's Licancabur volcano. Auckland, New Zealand - Climate & Monthly weather forecast Most of the heating is caused by the suns visible and infrared radiation and not by UV radiation. WebThe Global Solar UV Index (UVI) The UVI is a simple measure of the UV radiation level at the Earth's surface. About the UV index You may notice a brief delay as each map loads. Select 1 to 3 images in order to perform any analysis. It can help individuals make healthy choices. These data come from Emory Universitys Environmental Remote Sensing Group at the Rollins School of Public Health. Index July. WebThe month with the lowest UV index in Auckland, New Zealand, is June, with an average maximum UV index of 3. Bright surfaces,[26] sand, water, and snow,[18] will increase UV exposure. [9][10] There are some older formulas for the spectrum, resulting in differences of up to 2%. The map is created daily from National Weather Service forecast data. A .gov website belongs to an official government organization in the United States. A UV index reading of 0 to 2 means low danger from the Sun's UV rays for the average person. What is the spatial distribution of radon in Germany? 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. Able to permeate our skin at different levels, protection against all three types of UV rays is essential for adequate sun protection. 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. These values are also representative of the values expected between 11 am and 1 pm local time (12 pm and 2 pm daylight saving time) under clear skies. UV Index Melanin does help to prevent UV radiation damage, but it can also hide the early signs of skin cancer, leading to people with these skin complexions being diagnosed at later and more severe stages of the disease. Exposure to solar ultraviolet (UV) radiation CDC twenty four seven. Table 1 shows the average monthly UV Index across Australia. 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. UV index What is the point of radiation research? UV index 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. This means that there is a high risk of skin damage from prolonged exposure to sunlight. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. May. To help protect people from potentially harmful levels of UV exposure, the UV index was created to provide daily guidelines for sun safety (6): UV rating 1-2 While this is the lowest rating, protection is still necessary. The UV index values are grouped into five If you take regular breaks during sunbathing you wont get sunburnt. 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%. WebCountries; All countries (UV) radiation. Estimated to have over 106,000 new cases in 2021 alone (roughly 5.6% of all new cancer diagnoses this year), melanoma is currently ranked as the 19th most common cancer in the world (2)(3). The following harmonized exposure categories and colours are associated with various values of the UVI: A standard graphic presentation of the UVI promotes consistency in reporting and improves people's understanding of the problem. 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. January. However, skin damage from sunburn is related to wavelength, the shorter wavelengths being much more damaging. Blazing world record: Strongest UV rays ever measured It is advised that people limit their time in the sun at this UV index rating. It's even believed to be associated with a lower socioeconomic status, explains Dr Henry W. Lim, chairman of the Department of Dermatology for the Henry Ford Health System (12). Share sensitive information only on official, secure websites. WHO encourages dissemination channels such as the media and tourism industry to publish the UVI forecast and promote sun protection messages. A higher index value indicates a greater potential for harmful effects to the skin and eyes. 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. The index ranges from 0 to 11+ and the values are grouped into various exposure categories. As the Earth continually rotates in its orbit around the sun, certain countries are exposed to higher levels of UV radiation than others. UV Radiation Exposure It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. The UV index is used to forecast the strength of the sun's ultraviolet rays. From collection: Vital Ozone Graphics 2.0 - Climate Link, Cartographer: Protection against skin and eye damage is needed. [6], While the UV index can be calculated from a direct measurement of the UV spectral power at a given location, as some inexpensive portable devices are able to approximate, the value given in weather reports is usually a prediction based on a computer model. January. By making global pledges to reduce the use of ozone-depleting substances, the world's leading countries can decrease our impact on the ozone layer, and in turn, reduce skin cancer cases. Analogous to the temperature scale, the UVI gives an indication of the level of UV radiation and the potential danger of sun exposure. Countries close to the equator can experience very high UV levels in the middle of the day throughout the year. The map below shows predicted UV Index values during the solar noon hour for about 50 U.S. cities. Explore how extreme heat affects your county, populations that are at risk, and resources for response. Those with darker skin (Type IV+) are more likely to withstand greater sun exposure, while extra precautions are needed for children, seniors, particularly fair-skinned adults, and those who have greater sun sensitivity for medical reasons[26] or from UV exposure in previous days. UV index worldwide NREL If this damage cannot be corrected by our bodys innate cell corrective mechanisms, faulty cell replication can occur, resulting in the formation of skin cancer. The most common types of non-melanoma skin cancers are basal cell carcinomas and squamous cell carcinomas, both of which have a lower mortality rate than melanoma (1). The UV index is a measure of the amount of ultraviolet radiation reaching the earths surface. Look for Analyze this image and click on that link to add to your analysis queue. The UV Index is accompanied by recommendations for sun protection and is a useful tool for planning 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) . Ozone depletion, as well as seasonal and weather variations, cause different amounts of UV radiation to reach the Earth at any given time. Based on a skin chart created by the World Health Organization (WHO), there are six different skin types, each with different risk levels for experiencing UV damage (10). Toggle navigation. 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. 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. This indicator provides state and county level data on monthly and annual average doses of UV irradiance measured daily and at noon. Ultraviolet index 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. Based on a wide variety of factors such as geographical location, cultural practices, and the ethnicities of the inhabitants, some countries experience significantly higher rates of skin cancers than others. 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 means that there is a high risk of skin damage from prolonged exposure to sunlight. The erythemal weighting factors applied to these figures are 1.0, 0.22, and 0.003 respectively. These cookies may also be used for advertising purposes by these third parties. 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. The UV-Index. Factors like the Earths elliptical orbit shape, lower overall pollution levels, and less population density results in countries in the southern hemisphere near the equator getting an estimated 15% more UV radiation exposure than those in the northern hemisphere (13). UV April. WebThe month with the lowest UV index in Auckland, New Zealand, is June, with an average maximum UV index of 3. In rodents, this immune suppression results in enhanced susceptibility to certain infectious diseases. UV Index and why could it break 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. Beyond its scientific objectives, INTERSUN provides guidance to national authorities and other agencies about effective sun awareness programmes. The top 20 countries for skin cancer diagnoses (and their average summer UV index) are (7): #1 Australia (average UV index of greater than 12), #2 New Zealand (average UV index of greater than 11), #3 Norway (average UV index of 5 or less), #4 Denmark (average UV index of 6 or less), #5 Netherlands (average UV index of 5 or less), #6 Sweden (average UV index of 5 or less), #7 Germany (average UV index of 5 or less), #8 Switzerland (average UV index of 8 or less), #9 Belgium (average UV index of 7 or less), #10 Slovenia (average UV index of 8 or less), #11 Luxembourg (average UV index of 7 or less), #12 Ireland (average UV index of 6 or less), #13 Finland (average UV index of 5 or less), #14 The United Kingdom (average UV index of 8 or less), #15 (tied) Austria and France (average UV index of 7 and 6, respectively), #17 United States (average UV index of 9-10 depending on the state), #18 Czech Republic (average UV index of 7 or less), #19 (tied) Canada and Italy (average UV index of 6 and 9, respectively). The top 20 countries for skin cancer diagnoses (and their average summer UV index) are (7): #1 Australia (average UV index of greater than 12) #2 New Zealand (average UV index of greater than 11) #3 Norway (average UV index of 5 or less) #4 Denmark (average UV index of 6 or less) UV radiation The Global Solar UV Index (UVI) described in this document is a simple measure of the UV radiation level at the Earths surface and an indicator of the potential for skin damage. Bright surfaces, such as sand, water, and snow, will increase UV exposure. As our pollution continues to deplete the ozone layer, more and more harmful UV rays are making it through our atmosphere and reaching the Earths surface. 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. Ultraviolet index The Global Solar UV Index (UVI) described in this document is a simple measure of the UV radiation level at the Earths surface and an indicator of the potential for skin damage. 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). At these levels there is an increased risk of skin damage, and protective measures are recommended. UV Index As the global cases of skin cancer continue to trend in the wrong direction, it is time that we take action before the number of cases overwhelms our healthcare systems. The values of the index range from zero upward - the higher the UVI, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur. Imagery produced by the NASA Earth Observations team based on data provided by Jerry Ziemke from the Ozone Monitoring Instrument (OMI) science team. The UVI is an important vehicle to alert people about the need to use sun protection. 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. The UVI is a simple measure of the UV radiation level at the Earth's surface. Thus, for convenience, the DUV is divided by 25mW/m2 to produce an index[13][14] nominally from 0 to 11+, though ozone depletion is now resulting in higher values. UV Index Worldmap A UV index reading of 6 to 7 means high risk of harm from unprotected sun exposure. Learn more about the UV Index. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. To best protect yourself, it is recommended that people avoid any sun exposure from 10 am - 2 pm when the risk for high UV exposure is at its highest.

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