TY JOUR TI CONTENTS AND PROFILE DISTRIBUTION OF HEAVY METALS AND ARSENIC IN SOILS OF NORTHERN TAJIKISTAN KW heavy metals KW arsenic KW technogenic pollution KW X-ray fluorescence analysis KW pollution levels KW relative abundance of the elements KW maximum permissible concentration. JO Ekosistemy AU Nurmatzoda (Nurmatov), D.H. AU Rahmatzoda (Rahmatov), M.N. AU Abdullozoda (Abdullaev), S.F. PY 2024 IS 0 PB V.I. Vernadsky Crimean Federal University