The Dangers of UV Radiation

Overexposure to the sun is the leading cause of skin cancer. QTemp was created as a tool in sun safety, takes the guesswork out of sun protection. 1 in five Americans, 1 in seven Canadians and 2 in three Australians develop skin cancer in their lives, mostly because of overexposure to the sun. With proper protection from the sun, this can be prevented. It’s time to stop risking our health, start protecting ourselves &  our loved ones from the dangers of overexposure.


According to the Skin Cancer Foundation website about 2.8, 0.7 & 0.07 million are diagnosed with Basal Cell Carcinoma (BCC), Squamous Cell Carcinoma (SCC) & melanoma each year in the US.

Why are UV rays dangerous?

The Sun emits visible light, heat, & Ultraviolet (UV) radiation. Getting some sun, or UV exposure, is necessary for the production of Vitamin D (essential for bone health). However, excessive UV exposure is associated with sunburn, accelerated skin aging, eye diseases, & skin cancers. Your UV exposure depends on the strength of the rays, the length of time the skin is exposed, & if the skin is protected with clothing or sunscreen.

How the Sun sees you?

Normal Light

Ultraviolet Light

A 35-year-old melanoma survivor agrees to share photos that Dellavalle’s team took comparing her skin under normal light & ultraviolet light. University of Colorado Cancer Center

What is ultraviolet radiation?

UV rays are the main cause of the sun’s damaging effects on the skin.
There are 3 types of UV rays:
UVA: ages skin cells and can damage skin cell DNA. Linked to long-term skin damage, wrinkles, and may increase skin cancer risks. Tanning beds can emit 2 to 5 times more UVA radiation than the sun.

UVB: can damage skin cell DNA directly and cause sunburns. Thought to cause most skin cancers.

UVC: have more energy than the other types of UV rays but can’t get through our atmosphere.

What is the UV Index?

National Weather Service and the Environmental Protection Agency (EPA) developed the Ultraviolet Index (UVI) to give people an idea of how strong the UV rays are in their area.
The amount of UV rays in any given place depends on a number of factors including time of day, time of year, elevation, and cloud cover. The scale ranges from 1 to 11+ and includes recommendations for sun protection based on the UVI reading.

UV level and environmental factors

Many factors affect the UV intensity and alter the UVI. This affects how long you can stay in the sun before developing skin damage and sunburns. QTemp takes these factors into account when calculating your Safe Sun Time.