This is my self made UV levels poster. It starts from the lowest UV to the highest, explaining what needs to be done if the UV level is at a specific place.
Why does the UV rays of the sun change during the day?
Because of reduction, that is heavily influenced either by sun’s spot in the sky, UV rays intensity at ground level varies from day to day. According to a new analysis, the sun is at its connecting position when most UV rays hits the eye. Sun elevation depends on how high the sun is which can be told due to the height of your shadow.
What are the times when the UV rays of the sun are most dangerous in NZ?
Said before , When the sun is at its highest point during the day that can be a major exposure of UV rays on skin giving a chance of 50% of having skin cancer ( From 11am – 3pm). During our year right now because the Ozone layer is slowly getting thinner UV rays are coming more through which means more exposure.
What affects UV radiation?
UV radiation is affected depending on many things. What is the time of the day , what time of the year ( season ), Cloud cover , altitude ( the height of an object or point in relation to sea level or ground level), your whereabouts and surrounding surfaces.
What is the UVNZ app?
This app is a forecast which tells you the level of heat, humidity and exposure. The app has your location and also alerts you when you need sun protection.
What different types of radiation does the sun send out
Any type of energy comes through the solar radiation, which is a large amount of energy. The Energy/radiations include includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is another way of moving heat around.
What is UVB and UVA and UVC?
These are the three ultraviolet radiation. UVB is ultraviolet B , it has a shorter wavelength and is connected to skin burning. UVA being slightly less harmful than the other 2 ultraviolet, UVA leads to tan skin and damages to skin. Lastly UVC is the most dangerous radiation because of its strong damage to the layers of the skin burning most of the outer layers of skin.
Which is the most dangerous UV and why?
UVC is the the worst type of radiation because of its strong damage( as said ) to the outermost of skin.