Program supporting the assessment of photochemical hazard of the eye lens with UVA radiation in the field 315 – 400 nm.

The initial values for hazard assessment are:
E_UVA – effective irradiance for the eyes (E_UVA), w [W/m²],

t_c – total exposure time during work shift (t_c), w [s] .

Occupational risk assessment is performed in relation to the applicable admissible values, specified in the Regulation of the Minister of Family, Labor and Social Policy of 12 June 2018 on the highest allowable concentrations and intensities of factors harmful to health in the work environment (Journal of Laws 2018 item 1286). According to the regultion, the quantity used to assess the photochemical risk of the eye lens with UVA radiation is effective irradiation with radiation in the range 315 - 400 nm, H_UVA, in [J / m²]. A maximum admissible exposure (MDE) of 10,000 J / m² was determined for this value.

Based on the entered values, the program calculates the value of effective irradiation of radiationin in the range 315 - 400 nm, MDE times, k, and evaluates the occupational risk resulting from these values. In addition, the program determines the value of the allowed exposure time during the work shift, t_doz (denoted t_doz), in [s], resulting from the given value of the effective irradiation. Detailed principles of occupational risk assessment are presented in the chapter "Principles of assesment".

Color marking in occupational risk assessment:
green - low risk,
yellow - medium risk,
red - high risk.

Using the program:

Enter the value of the total exposure time t_c and the value of the effective irradiance E_UVA in the appropriate fields of the program, and then press the Calculate button with the mouse.