a 43.3 UVI.
The highest level of UV solar radiation ever recorded on Earth is a 43.3 UVI (Ultra Violet Index) registered by astrobiologists from USA and Germany, at the Bolivian section of the Licancabur Volcano, in Potosi, Bolivia, on 29 December 2003.
In this post
What is the highest UV index can go?
UV Index Scale
- 0 to 2: Low. A UV Index reading of 0 to 2 means low danger from the sun’s UV rays for the average person.
- 3 to 5: Moderate. A UV Index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure.
- 6 to 7: High.
- 8 to 10: Very High.
- 11 or more: Extreme.
Where is the highest UV index in the world?
Revealed: The Travel Hotspots That Could Be Damaging to Your Health
| # | Country | Average UV Index |
|---|---|---|
| 1 | Sri Lanka | 11.75 |
| 2 | Nigeria | 11.67 |
| 3 | Thailand | 11.33 |
| 4 | Barbados | 11.33 |
Can u tan in UV 4?
Can You Get a Tan With a UV Index of 4? Yes, you can tan with a UV index of 4, but it will take more time to do so. You just need to be in the sun for longer periods of time. A UV index of 4 means that there is a low risk of harm from unprotected exposure to sunlight.
At what UV do you burn?
The higher the value, the greater the risk of sunburn and the less time it takes to damage your skin. When the UV Index is 3 or more, the sun is strong enough to cause damage for some skin types so take care and protect your skin, especially if you burn easily.
Why is Australia sun so strong?
Australia’s unusually harsh sunshine results mainly from its location in the Southern Hemisphere. The elliptical orbit of the Earth places the Southern Hemisphere closer to the sun during its summer months than the Northern Hemisphere during its summer.
Why is NZ sun so strong?
First, Earth’s elliptical orbit means it is closest to the sun in the New Zealand summer months of December and January. Second, New Zealand’s relatively clean air means UV radiation is less likely to be scattered by airborne-pollution and more UV radiation reaches the ground.
Is UV index 8 bad?
A UV index of 8 is very high and can cause burns within a few minutes if you expose yourself without protective sunglasses, sunscreen, a hat or UPF clothing. Therefore, minimize outdoor activities between 10 am to 4 pm.
Can you tan UV index 1?
While getting sunburn in UV 1 or 2 conditions is extremely unlikely, it’s still not impossible. So can you tan with a UV index of 1 or 2? Probably, but it would take a while.
Can you tan with clouds?
A cloudy sky may not seem like the best choice for tanning, but it is still possible to tan! According to research and studies, around 90% of UV rays penetrate clouds, therefore reaching your skin. Even if you can’t feel the sun on your skin, the UV rays that lead to tanning are still present.
How fast do you tan in UV 7?
Example of UV Index Forecast
| UV Index Number | Exposure Level | Time to Burn |
|---|---|---|
| 5 | Moderate | 45 minutes |
| 6 | High | 30 minutes |
| 7 | ||
| 8 | Very High | 15-25 minutes |
Do clouds block UV rays?
While clouds do reduce some of the sun’s UV rays, they don’t block all of them, as the Skin Cancer Foundation explains. UVA rays can penetrate clouds, and they can also reach below the water’s surface.
Do black people get sunburned?
Higher levels of melanin means less sunburn and less skin cancer. But even the darkest-skinned person is not protected 100% from sunlight. A 2010 CDC study found that 13% of black women and 9% of black men reported getting at least one sunburn in the past year.
Can you tan through a window?
Surprisingly, you CAN get a suntan through a window! Most panes of glass absorb around 97 per cent of the sun’s UVB rays – the ones which cause sunburn and some skin cancers. While the glass will absorb 37 per cent of the less harmful UVA radiation, expert Luis Villazon told Science Focus.
Which country has the harshest sun?
Australia
Australia is the largest, making it, some claim, the world’s sunniest country. What does this mean? Simply, that Australia is scorched by the Sun.
Is the sun getting harsher?
But many have wondered, is the sun getting stronger? It’s a question News 8 wanted to VERIFY. According to Scripps Atmospheric Scientist Ray Weiss the answer is no, even though it feels that way. He says it’s not that the sun is stronger, but rather the ozone layer is thinner meaning more UV rays are coming through.
Why is Australia sky so blue?
Sometimes, in Australia’s outback the sky is very blue because it’s so dry, but on other days when it’s dusty or during bushfires, the sky will appear much redder. The blueness of the sky is also affected by other factors, such as the moisture and particulate matter in the air.
In which country there is no ozone layer?
These conditions have led to ozone hole formation in Antarctica. This hypothesis was decisively confirmed, first by laboratory measurements and subsequently by direct measurements, from the ground and from high-altitude airplanes, of very high concentrations of chlorine monoxide (ClO) in the Antarctic stratosphere.
Is the ozone hole over New Zealand?
Ozone concentrations measured over New Zealand are not affected directly by the ozone hole, which lies over Antarctica each spring.
Do we still have a hole in the ozone layer?
Today, the ozone hole still exists, forming every year over Antarctica in the spring. It closes up again over the summer as stratospheric air from lower latitudes is mixed in, patching it up until the following spring when the cycle begins again.
How long is too long in the sun?
Minimal: Index of 0-2; very fair people may burn after 30 minutes. Darker-skinned people considered safe up to two hours. Low: Index of 3-4; fair people can spend 15 to 20 minutes in the sun. Others face damage after 75 to 90 minutes.