TY JOUR TI Analysis of Fe, Zn, Ni, Cu and Mn content in the soil – Artemisia arenaria system of the Astrakhan region KW chemical elements KW sandy wormwood KW soil KW accumulation KW the Astrakhan region KW accumulation coefficient JO Oil and gas technologies and environmental safety AU Ershova, T.. AU Panchenko, S.. AU Shaboyants, N.. PY 2026 IS 2026 PB Astrakhan State Technical University