The Definition of Ultraviolet (UV) Radiation Exposure

Definition of Ultraviolet (UV) Radiation Exposure

Occurs when workers are exposed to ultraviolet light — whether from natural sunlight or artificial sources like welding arcs and UV curing lamps — at levels capable of causing skin burns, premature aging, skin cancer, or eye damage such as photokeratitis ("arc eye" or "welder's flash").

Example of Ultraviolet (UV) Radiation Exposure

A welder working on an outdoor structural project wears an auto-darkening welding helmet with UV-filtering lenses and long-sleeved flame-resistant clothing to protect against both arc flash and sun exposure during the shift.

Frequently Asked Questions: Ultraviolet (UV) Radiation Exposure

What jobs carry the highest risk of UV radiation exposure?

‍Outdoor construction and landscaping workers, welders, and employees who work near UV curing or sterilization equipment face some of the highest occupational UV exposure risks.

How can workers protect their eyes from UV exposure?

‍Appropriate eye protection depends on the source — welding requires specially rated shaded lenses, while general outdoor UV exposure calls for sunglasses rated to block UVA and UVB rays.

Can UV exposure effects be delayed?

‍Yes, skin damage from cumulative sun exposure often develops over years, while acute effects like arc eye from welding flash typically appear within hours of exposure.