average uv index by country

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. The UV index is a measure of the amount of ultraviolet radiation reaching the earths surface. Lets explore how human genetics (and the impact of modern pollution) are contributing to the increased numbers of skin cancer diagnoses around the world. 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. Sunlight/UV Vulnerability and Preparedness Many experts believe that the increased prevalence of skin cancer in modern fair-skinned Aussies and Kiwis is in part due to their European ancestors. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. Provide data to help public health officials make informed decisions about planning and implementing programs and services for people living in regions of high exposure. If outdoors, wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Secure .gov websites use HTTPS We use cookies to imporve your experience. The maps below show monthly average UV Index values for the United States. 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. Monthly mean UVI at the local noon over Europe for January until June over the time period 19832015 based on satellite data. The suns rays become stronger as you move south, and in the tropics, the index can rise to 14 or higher. July. Protect the eyes with wrap-around-design sunglasses or sunglasses with side panels. This indicator provides state-level data on laws regarding sunscreen use in schools and indoor tanning restrictions for individuals younger than 18 years. Summer-time values in Northern latitudes rarely exceed 8. UV rating 8-10 At this very high rating of UV exposure, you can sustain a sunburn in less than 15 minutes. 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). Determine which states have laws or policies in place to help reduce exposure to sunlight and UV, particularly among minors. Trouble with this form? 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. Imagery produced by the NASA Earth Observations team based on data provided by Jerry Ziemke from the Ozone Monitoring Instrument (OMI) science team. The maps below show monthly average UV Index values for the United States. Share sensitive information only on official, secure websites. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. This page was last edited on 5 April 2023, at 00:51. The UV index is designed as an open-ended linear scale, directly proportional to the intensity of UV radiation, and adjusting for wavelength based on what causes human skin to sunburn. A tan results from your body defending itself against further damage from UV radiation. If you dont feel the hot rays of the sun you wont get sunburnt. UV rating 11+ Any rating of 11 or higher is considered to be extreme levels of UV radiation exposure. Without the higher amounts of melanin in the skin, people with fair skin are at an elevated risk for experiencing UV radiation damage to their skin cells. The map is created daily from National Weather Service forecast data. Monthly mean UVI at the local noon over Europe for January until June over the time period 19832015 based on satellite data. Latitude: the closer to equatorial regions, the higher the UV radiation levels. Since its initial publication in 1995, many countries have been using the UVI to promote sun protection along with the weather forecast in newspapers, TV and radio. Because of this, the ten most common locations for the development of skin cancer include the chest, arms, back of the legs, and face (11). It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. Official websites use .gov WHO encourages dissemination channels such as the media and tourism industry to publish the UVI forecast and promote sun protection messages. Using this item and referring to it is encouraged, and please use Protection against skin and eye damage is needed. The UV Index provides a forecast of the expected risk of overexposure to UV radiation from the sun. The UV index is a linear scale that measures the intensity of UV radiation with respect to sunburn. launched the UV Alert. 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%. 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. Just fill out the form below. Official websites use .gov The Tracking Network includes data on exposure to sunlight and UV in the United States. UV radiation levels vary throughout the year and throughout the country according to: 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. What are static and low-frequency electric and magnetic fields? The UV power spectrum (expressed as watts per square meter per nanometer of wavelength) is therefore multiplied by a weighting curve known as the CIE-standard McKinlayDiffey erythemal action spectrum. When autocomplete results are available use up and down arrows to review and enter to select. The suns rays become stronger as you move south, and in the tropics, the index can rise to 14 or higher. What factors affect the level of UV radiation? 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. On top of the sun safety practices mentioned before, it is recommended that people seek out shade throughout the day at this UV rating. 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. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. The INTERSUN programme promotes the harmonized use of the UVI, and advises governments to employ this educational tool in their health promotion programmes. As the largest organ in the human body, our skin has a lot of surface area for the potential development of health conditions. The maps below show monthly average UV Index values for the United States. The UVI is an international standard index that describes the level of solar UV radiation on the earths surface. 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. Try to avoid sun exposure between 10 a.m. and 4 p.m. Capable of causing a sunburn on unprotected skin in under 45 minutes, places like Norway and Denmark with an average UV index of 5 or 6 can still be dangerous, especially for those with fair skin tones. (Also note the huge increase in sunburn damage caused by the shorter wavelengths; e.g., for the same irradiance, 305nm is 22% as damaging as 295nm, and 325nm is 0.3% as damaging as 295nm.) This indicator provides state-level data on laws regarding sunscreen use in schools and indoor tanning restrictions for individuals younger than 18 years. WebThe Cancers Attributable to UV Radiations. January. A .gov website belongs to an official government organization in the United States. Click the buttons for Day 2, Day 3, or Day 4 to see the UV Index forecast for following days. WebUV levels are higher in the north of the country. UV Radiation Exposure UV radiation levels vary throughout the year and throughout the country according to: Bright surfaces, such as sand, water, and snow, will increase UV exposure. NASA Earth Observations is part of the EOS Project Science Office located at NASA Goddard Space Flight Center Thus UV radiation levels vary with time of day and time of year.Latitude: the closer to equatorial regions, the higher the UV radiation levels.Cloud cover: UV radiation levels are highest under cloudless skies but even with cloud cover, they can be high. What Might Have Been The UV-Index. Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. As part of an international effort, the UV index was developed by WHO, the United Nations Environment Programme, the World Meteorological Organization and the International Commission on Non-Ionizing Radiation Protection. Even for very sensitive fair-skinned people, the risk of short-term and long-term UV damage below a UVI of 2 is limited, and under normal circumstances no protective measures are needed. The protection they afford depends critically on their correct application. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. system. It should be combined with using clothing, hats and sunglasses. A special, https://www.epa.gov/developers/data-data-products-envirofacts-uv-index-widget, Download the free UV Index smartphone app. You will be subject to the destination website's privacy policy when you follow the link. 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. 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. In countries close to the equator, the UVI can reach up to 20. 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). This indicator provides state and county level data on monthly and annual average exposure to sunlight. [15][16] Many other countries followed suit with their own UV indices. Most of the heating is caused by the suns visible and infrared radiation and not by UV radiation. In Because of the natural rotation and orbit of the Earth around the Sun, countries that are near the equator will experience the harshest increases in UV radiation exposure as a result of ozone depletion. More than 90% of non-melanoma skin cancers occur in fair skinned people who tend to burn. Copyright 1995-2020 Photius Coutsoukis (All Rights Reserved). It can help individuals make healthy choices. Integration of these values using all the intermediate weightings over the full spectral range of 290nm to 400nm[13] produces a figure of 264mW/m2 (the DUV), which is then divided by 25mW/m2 to give a UV index of 10.6. Provisions for buildings and workplaces. The UV-Index. ", "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. 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. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. The UVI is a measure of the level of UV radiation. With the rates of skin cancer diagnosis increasing every year, aggressive cancer types like cutaneous malignant melanoma are steadily climbing up the leaderboard of most common cancers around the world. In particular, frequent sun exposure and sunburn in childhood appear to set the stage for high rates of melanoma later in life. it in presentations, web pages, newspapers, blogs and reports. Ozone depletion, as well as seasonal and weather variations, cause different amounts of UV radiation to reach the Earth at any given time. Cookies used to make website functionality more relevant to you. Saving Lives, Protecting People, American Society for Dermatologic Surgery Association, Sunlight/UV Vulnerability and Preparedness, Centers for Disease Control and Prevention, U.S. Department of Health & Human Services. An official website of the United States government. The UV index values are grouped into five Emissions from the sun include light, heat and UV radiation. Minimize sun exposure between 10 a.m. and 4 p.m. Divided into three different classes based on their wavelengths, UVA, UVB, and UVC rays can permeate into our skin to different depths (4). 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. What is the coldest month in Auckland? Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. The author, Claire Bonneau, is a medical writer and certified trauma operating room nurse. WebThe Global Solar UV Index (UVI) is a simple measurement of the UV radiation level at the Earth's surface. Starting in the days of colonization, humans have been migrating around the world to build a life in new and foreign places. With some countries like Australia and New Zealand reporting incredibly high average UV index levels, others like Norway and Denmark still have cases despite having much lower UV values. Countries close to the equator can experience very high UV levels in the middle of the day throughout the year. UV radiation exposure is cumulative during the day. Research has found a 4x increase in minimum dose to sunburn from subjects in the US compared to subjects in Taiwan.[29]. Principles of radiation protection, Atomic bombings: radiation protection, Occupational radiation protection. It is primarily used in daily and hourly forecasts aimed at the general public. 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. The recommendations below are for average adults with lightly tanned skin[citation needed] (Fitzpatrick scale of skin colour: Type II). 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. Wear protective clothing.Wear a broad brimmed hat to protect the eyes, face and neck. 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. 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. Heraklion, Greece has an average UV index of 12. For further information on INTERSUN refer to our web site: www.who.int/peh-uv. May. Wear sunglasses on bright days. Table 1 below shows the average UV Index (UVI) levels for regions across New Zealand and Australia based on latitude. June. However, sunscreen represents a last line of defence, and should never be used to prolong the duration of sun exposure. Generously apply broad spectrum SPF 15+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. Please click here to see any active alerts. While individual genetics, time spent outside, cultural practices, and access to sun-protective barriers play a role in a persons risk for developing skin cancer, it turns out that your geographic location may increase your risk more than we previously thought. 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. The UV index is used to forecast the strength of the sun's ultraviolet rays. Capable of causing a severe sunburn in under 10 minutes, it is advised that you take all precautions possible to limit your exposure to the sun at this UV rating. [5] This linear scale is unlike other common environmental scales such as decibels or the Richter scale, which are logarithmic (the severity multiplies for each step on the scale, growing exponentially). A UV index reading of 0 to 2 means low danger from the Sun's UV rays for the average person. Sunscreens protect me so I can sunbathe much longer. 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. 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. 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. This indicator provides state-level data on laws regarding sunscreen use in schools and indoor tanning restrictions for individuals younger than 18 years. Sun protection is important in all settings, in particular at all outdoor recreation sites such as beaches and sports centres. It has been designed to indicate the potential for adverse health effects and to encourage people to protect themselves. May. The UV Index is an important vehicle to raise public awareness of the risks of excessive exposure to UV radiation, and to alert people about the need to adopt protective measures. Aura: Ozone Monitoring Instrument Heraklion, Greece has an average UV index of 12. The UV index values are grouped into five Sunlight/UV Vulnerability and Preparedness. Heraklion, Greece has an average UV index of 12. On a global scale, our governments need to come together to enact policies that protect the stability of our ozone layers. The UVI is a simple measure of the UV radiation level at the Earth's surface. At these levels there is an increased risk of skin damage, and protective measures are recommended. WebThis indicator provides state and county level data on monthly and annual average doses of UV irradiance measured daily and at noon. The UV index is used to forecast the strength of the sun's ultraviolet rays. WebThe Cancers Attributable to UV Radiations. 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) . July. 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. WebThe month with the lowest UV index in Auckland, New Zealand, is June, with an average maximum UV index of 3. It is important to note that while those with darker skin tones have a lower risk of developing skin cancers, the risk is never zero. Learn more about the UV Index. [4] Therefore, under similar conditions, a person who develops a sunburn after 30 minutes of exposure to UV index 6 radiation would most likely develop a sunburn after 15 minutes of exposure to UV index 12 radiation, since it is twice the intensity but half the duration. In countries close to the equator, the UVI can be as much as 20. 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. webmaster: Paul Przyborski | NASA official: Robert Levy. Seek shade during midday hours! Bright surfaces, such as sand, water, and snow, will increase UV exposure. From collection: Vital Ozone Graphics 2.0 - Climate Link, Cartographer: 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. April. By using our site, you consent to, Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported CC BY-NC-SA 3.0. In reporting the UVI, the maximum daily UV level, which occurs during the four-hour period around solar noon, is provided on a given day. 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). The clear/sunny sky peak UVI index is reduced by cloud cover. The UV Index provides a forecast of the expected risk of overexposure to UV radiation from the sun. 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. [18], On December 29, 2003, a world-record ground-level UV index of 43.3 was detected at Bolivia's Licancabur volcano,[19][20] though other scientists dispute readings higher than 26.[21]. The UVI is an important vehicle to alert people about the need to use sun protection. U.S. January Solar DNI Average. In Australia, a study in 2011 found the average UV index had increased by 26% between the 1970s and the period 19902009, due to depletion of the ozone layer. Figure 4. The UV index is a measure of the amount of ultraviolet radiation reaching the earths surface. The higher the UV index, the more intense the radiation and the greater the risk of skin damage. The UVI is an important vehicle to alert people about the need to use sun protection. What is the coldest month in Auckland? TheGlobal Solar UV Index is intended to be used by national and local authorities and non-governmental organizations active in the area of skin cancer prevention, as well as meteorological offices and media outlets involved with UVI reporting. 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. Toggle navigation. WebCountries; All countries (UV) radiation. 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. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. While the smaller wavelength UVC rays often only impact the top layer of our skin, UVA rays can deeply penetrate every layer of the skin, capable of causing cellular disruption in the deepest dermis layer (5). U.S. January Solar DNI Average. The graphics package can be downloaded from the web site of INTERSUN, the Global UV Project, at http://www.who.int.uv/. Bright surfaces,[26] sand, water, and snow,[18] will increase UV exposure. 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.

John Schneider Rob Schneider's Brother, Where To Donate Unopened Wine, Why Did John Wayne Walk With A Limp, Articles A