Answer to Question 1
The Type of eye protection needed in a given setting depends on the type of work done in that setting and the corresponding hazards. Before establishing a vision protection program, it is necessary to assess the workplace. OSHA recommends using the following questions in making a workplace assessment:
Do employees perform tasks that may produce airborne dust or flying particles?
Do employees work near others who perform tasks that may produce airborne dust or flying particles?
Do employees handle hazardous liquid chemicals or blood?
Do employees work near others who handle hazardous liquid chemicals or blood?
Do employees work in situations that may expose their eyes to chemical or physical irritants?
Do employees work in situations that may expose their eyes to intense light or lasers?
Answer to Question 2
Ionizing radiation is radiation that becomes electrically charged or changed into ions. Types of ionizing radiation include alpha particles, beta particles, neutrons, X-radiation, gamma radiation, high-speed electrons, and high-speed protons.