TY JOUR TI HYGIENIC ASSESSMENT OF WORKING CONDITIONS AT AN OIL REFINERY KW hygienic assessment of working conditions KW oil refinery KW occupational noise KW physical workload KW mental workload JO Modern Technologies and Scientific and Technological Progress AU Bahdanovich, K.V. AU Siamionau, I.P. AU Rybina, T.M. AU Volkava, I.V. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»