Misją Instytutu jest dzialalność naukowo-badawcza prowadząca do nowych rozwiązań technicznych i organizacyjnych użytecznych w kształtowaniu warunków pracy zgodnych z zasadami bezpieczeństwa pracy i ergonomii oraz ustalanie podstaw naukowych do właściwego ukierunkowywania polityki społeczno-ekonomicznej państwa w tym zakresie.
Assessment of the photochemical hazard for the eye's retina with blue light in the range of 300 - 700 nm
Program supporting the assessment of the photochemical hazard for the eye's retina with blue light in the range of 300 - 700 nm.
The initial values for hazard assessment are:
α – angle of view of the source (marked in the program as alpha), in [mrad] ,
EB – effective irradiance determined for the eyes (marked as E_B), in [W/m2], for small sources (α < 11 mrad),
LB – effective radiance of the source (marked as L_B), in [W/m2sr], for large sources (α >= 11 mrad),
tc – total exposure time (marked as 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 ordinance, the values used to assess the photochemical hazard of the eye's retina with radiation in the range 315 - 400 nm are: effective irradiation, EB (for smal sources) and effective ratiance of the source LB (for large sources). For these quantities, the maximum exposure values (MDE) were determined as a function of exposure time.
Based on the entered values, the program calculates the value of MDE, MDE times, k, and evaluates the occupational risk resulting from these values. In addition, the program determines the value of the permissible exposure time during the work shift, tp (denoted t_p), in [s], resulting from the given value of the effective irradiation or effective radiance. 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:
Using the switch available in the program, select the type of radiation source (small / large), depending on the angle of view of the source, alpha. Then, in the appropriate fields of the program, the value of the effective irradiance E_B or the value of the effective radiance of the source L_B and the total exposure time t_c should be provided (depending on the selected type of source). The entered values should be confirmed with the Enter key.
