TY JOUR TI ELEMENTAL COMPOSITION OF AGE-DIVERSE PINE NEEDLES (PINUS SYLVESTRIS L.) IN LICHEN PINE FORESTS UNDER LONG-TERM AEROTECHNOGENIC POLLUTION FROM EMISSIONS OF THE SYKTYVKAR TIMBER PROCESSING COMPLEX KW pine KW chemical monitoring KW pulp and paper production KW aerotechnogenic pollution KW elemental composition KW pine needles. JO Ekosistemy AU Robakidze, E.A. PY 2025 IS 0 PB V.I. Vernadsky Crimean Federal University