66. Non-ionizing radiation in the workplace – ultraviolet radiation, infrared radiation,oo

What are the main types of non-ionizing radiation?

Ultraviolet (UV), Infrared (IR), Radiofrequency, and Lasers

What is the highest energy form of non-ionizing radiation?

Ultraviolet (UV) radiation

What are sources of occupational UV radiation?

Sun, welding, germicidal lamps, tanning lamps

What are the three types of UV radiation and their effects?

• UVA: Near UV – erythema without pigmentation

• UVB: Middle UV – erythema, blisters, Vitamin D formation

• UVC: Far UV – kills bacteria, also aids in Vitamin D synthesis

What are the immediate health effects of UV radiation?

Erythema, pigmentation, Vitamin D production, immunosuppression, eye effects

What are the chronic health effects of UV radiation?

Photoaging (solar elastosis) and skin cancer

How can UV radiation exposure be prevented in the workplace?

Shielding, limiting exposure time, and maintaining distance

What is the primary source of IR radiation?

The Sun, but occupational sources include furnaces, ovens, IR lamps

How does IR radiation transfer heat?

From a hotter object to a cooler one by radiation

What are the health effects of IR radiation exposure?

• Cataract formation (middle IR affects the lens the most)

• Thermal injury to retina

• Superficial burns to cornea or skin

How can IR radiation hazards be controlled?

Shielding, reflective materials, and goggles