የድርጅቱ ስም፡ ዶዚሜድ የላብራቶሪ ፍተሻ
(የጨረራ ውስድ መጠን መለኪያ)
ስልክ ቁጥር፡- 0116900239/011878154
የቢሮ አድራሻ፡- 22 ማዞሪያ ጎላጎል ሕንፃ
Organization: Dosi med Laboratory test
Office: 22 Mazoriya Golagol
Building 11th Floor
Office No. 1103
Creation of Awareness about Radio active Radition Damage on the public with medias Such as TV,Radio and Websites.
Giving Permission Granted in a Document by the Authority to a Legal Person Who full fill the Requirements and Standard.
Conducting Inspection based on: Regular inspection Programme and, Request from the customer,Verification Inspection, Inspection based on past profile of the institution.
Possible actions for non-compliance: Formal instructions assured and correct the infraction, Written warning for non – compliance, Suspension of or restrictions on, operation until regulatory infraction or safety condition is corrected.
Radioactive Waste Management and Processing
Make and maintain control with all relevant persons involved with radioactive waste to provide an authoritative point of advice and guidance, Establish and maintain a detail record keeping system for all stages of radioactive waste management, including the inventory of radioactive waste, Ensure that waste package for off- site transportation is prepared to be in compliance with Transport Regulations, Ensure that appropriate shielding, labeling, physical security and integrity of waste packages, Segregation, collection and characterization of radioactive waste, Treatment and conditioning of radioactive waste.
Ultraviolet (UV) radiation is part of the sun’s light spectrum that reaches the earth. The wavelength of UV is longer than X-ray and shorter than visible light.
Ultraviolet (UV) radiation is undetectable by the human eye. Although, when it falls on certain materials, it may cause them to fluoresce—i.e., emit electromagnetic radiation of lower energy, such as visible light. Some insects, mammals, and fishes are able to see ultraviolet radiation.
There are two (2) types of sources of ultraviolet radiation.
- Natural sources (sunlight)
- Artificial sources like Tanning beds and Germicidal lamps.
There are three types of ultraviolet radiation (UVR)
A.UVA (315-400) nm tanning ray
- Accounts for 95% of the UV radiation that reaches the earth surface
- used in a tanning bed
- Causes wrinkles and premature aging of the skin
- Penetrates clouds and glass windows-always
B.UV B (280-315) nm burning ray
- Affects the top layer of skin
- Cause most sunburns
- Linked strongly to skin cancer
- Damages DNA in your skin
- Burns unprotected skin in as little as 15 minutes
C. UV C (100-280) nm dangerous ray
It does not reach the earth’s surface (absorbed by the atmosphere)
- It is not normally considered a risk factor for skin cancer
- It is found a man-made source of UVC radiation(mercury lamps, welding torches)
- It is used in tanning
Application of Ultraviolet radiation
- Water disinfection
- Germicidal Irradiation (UVGI)
- Air purification
- To trap insects
- In Medicine: For certain skin diseases and other skin conditions, the prolonged exposure to UV light is better therapy. This exposure to UV light is called as photo-therapy. Even newborn babies can have jaundice due to break down of hemoglobin. Then doctors treat them by phototherapy by using a bright light or UV light.
- Vitamin D Production
- UVB is able to convert sterols in the skin, such as 7-dehydrocholesterol to vitamin D
- Vitamin D is required to assist in the absorptions of calcium and phosphorus from the intestine to the bloodstream.
Risk of UV radiation
- Burning: Will occur if too high dose is used
- Premature aging of skin: chronic exposure to UV radiation, including sunlight is associated with premature aging of the skin. The skin may dry, coarse, leathery appearance with wrinkling and pigmentation collage degeneration that accompanies long term exposure to UV radiation.
- Carcinogenesis: prolonged exposure to UV may be a risk factor for the development of squamous cell and malignant melanoma.
- Eye damage: UV of the eyes can cause photokeratitis, conjunctivitis, and cataract.
How to Protect UV risk?
You need to protect your skin from the sun, especially during 10 am to 4 pm it is the sun’s most dangerous hours. There are some methods recommended for the protection, these are:
- Using sunscreen
- Shade in lotions, creams, ointments, gels, sprays, and wipes according to prescriptions made by physicians (medical doctors).
- Wearing protective clothing, hat.
- Wear sunglasses to protect the eyes.
- https://ww https://www.slideshare.net/sreerajsr/ultraviolet-radiation-17108866