Radiation: Ultraviolet (UV) radiation - World Health Organization …
Mar 9, 2016 · Solar emissions include visible light, heat and ultraviolet (UV) radiation. Just as visible light consists of different colours that become apparent in a rainbow, the UV radiation spectrum is divided into three regions called UVA, UVB and UVC. As sunlight passes through the atmosphere, all UVC and most UVB is absorbed by ozone, water vapour ...
Ultraviolet radiation - World Health Organization (WHO)
Jun 21, 2022 · Skin cancers are caused primarily by exposure to ultraviolet radiation (UVR), either from the sun or from artificial sources such as sunbeds. Globally in 2020, over 1.5 million cases of skin cancers were diagnosed and over 120 000 skin cancer-associated deaths were reported. Worldwide, it is estimated that 15 million people are blind due to ...
Radiation: The known health effects of ultraviolet radiation
UV radiation can cause short- and long-term health effects on the skin. In addition to the well-known short-term effects such as sunburn or allergic reactions, long-term effects like skin cancer represent a chronic health risk. Skin cancer risk is strongly correlated with the duration and frequency of sun exposure over one’s lifetime.
Ultraviolet radiation - World Health Organization (WHO)
Jul 29, 2024 · Ultraviolet radiation. Ultraviolet (UV) radiation covers the wavelength range of 100–400 nm, which is a higher frequency and lower wavelength than visible light. UV radiation comes naturally from the sun, but it can also be created by artificial sources used in industry, commerce and recreation.
Radiation: Effects of ultraviolet (UV) radiation on the skin, eyes and ...
Sep 17, 2003 · UV radiation accelerates skin aging, and the gradual loss of the skin’s elasticity results in wrinkles and dry, coarse skin. What are the effects of UV on the eye? The eye is recessed within its orbit and shielded by the brow ridge, the eyebrows and the eyelashes. Bright light activates the constriction of the pupil and the squinting reflex ...
SunSmart Global UV App helps protect you from the dangers of …
Jun 21, 2022 · The UV App has been launched to coincide with the first day of summer in the northern hemisphere. By increasing the public’s awareness and helping to reduce the incidence of skin cancer, this application ultimately supports the achievement of UN Sustainable Development Goal 3, which aims to ensure healthy lives and well-being worldwide by 2030.
Managing sunbeds - World Health Organization (WHO)
Small amounts of ultraviolet (UV) radiation are essential to produce vitamin D in people, yet overexposure to sunlight may result in acute and chronic health effects on the skin, eye and immune system.The rise in the incidence of skin cancers over the past decades is strongly related to increasingly popular outdoor activities and recreational exposure. Experts believe that 4 out …
Radiation: Sunbeds - World Health Organization (WHO)
Sep 13, 2003 · Natural UV radiation reaching the Earth's surface consists of approximately 95% UVA and 5% UVB radiation. Tanning parlours use different types of sunbeds, some emitting more, some emitting less UVB as compared to UVA. In the past, there was a trend towards a decrease of UVB and a corresponding increase in UVA.
Radiation: Ultraviolet (UV) radiation and skin cancer
Non-melanoma skin cancers are most frequent on parts of the body that are commonly exposed to the sun such as ears, face, neck and forearms. This implies that long-term, repeated UV radiation exposure is a major causal factor. Within some countries there is a clear relationship between increasing incidence of non-melanoma skin cancers with ...
Guidance on radiation and health - World Health Organization …
Natural UV radiation levels depend on sun elevation, latitude and altitude, cloud cover and ground reflection. More than 60 000 skin melanoma-related deaths were estimated to be caused by solar UV radiation in the year 2000. Exposures can occur through UV radiation from the sun, but also from sunbeds and other artificial tanning devices.