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1986/02/06
| अमरीकी डालर/ औंस | |
| Gold | 337.1 | |
| Silver | 590 |
Gold ऐतिहासिक गोल्ड मूल्य चार्ट और ग्राफ़
360 दिन ग्राफ ,
1 Ounce Gold=? USD
Silver रजत ऐतिहासिक मूल्य चार्ट और ग्राफ़
360 दिन ग्राफ ,
1 Ounce Silver=? USD
सोने की खबर:
- Radiation: Ultraviolet (UV) radiation - World Health Organization (WHO)
The sun is by far the strongest source of ultraviolet radiation in our environment 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
- Ultraviolet radiation - World Health Organization (WHO)
Ultraviolet radiation (UVR) can neither be seen nor felt While some people are exposed to artificial UVR sources (e g in medicine, industry and for disinfection and cosmetic purposes), everyone is exposed to solar UVR Solar UVR levels are influenced by several factors: Sun elevation: the higher the sun in the sky, the higher the UVR level
- Ultraviolet radiation - World Health Organization (WHO)
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: The known health effects of ultraviolet radiation
The most common form of sun allergy is polymorphic light dermatosis Following exposure to UV, in particular to UVA, the skin may develop patchy reddening, blisters, and nodules (papules) with an intense itching sensation, typically affecting the neck, upper chest, upper arms, backs of the hands, or thighs
- Radiation: Ultraviolet (UV) radiation and skin cancer
Effects of ultraviolet (UV) radiation on the skin, eye and the immune system Radiation: The known health effects of ultraviolet radiation Ultraviolet (UV) radiation The ultraviolet (UV) index Read more Global solar UV index : a practical guide Radiation and health Ultraviolet radiation
- Keeping safe from ultraviolet rays - World Health Organization (WHO)
Keeping safe from ultraviolet rays Updated: 20 September 2022 Back to all tips and information →
- Health and environmental effects of ultraviolet radiation : a summary . . .
This monograph is concerned with the effects of ultraviolet (UV) radiation exposure on human health and the environment Such a review of the scientific literature is considered timely in view of the consequences of increased levels of UV at the surface of the earth resulting from depletion of stratospheric ozone
- Raising awareness on ultraviolet radiation - World Health Organization . . .
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 of 5 cases of
- Radiation: The ultraviolet (UV) index - World Health Organization (WHO)
Effects of ultraviolet (UV) radiation on the skin, eye and the immune system Radiation: The known health effects of ultraviolet radiation Ultraviolet (UV) radiation Ultraviolet (UV) radiation and skin cancer Read more Global solar UV index : a practical guide Radiation and health Ultraviolet radiation
- Webinar: Disinfection using Ultraviolet Radiation
BackgroundThe ability of ultraviolet radiation to disinfect water, surfaces and air has been known for over a hundred years In the last few decades, the primary application across the world has been water disinfection, but it has also matured as a means of disinfection in healthcare and other environments The COVID-19 pandemic has highlighted the potential for UV radiation to manage the
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