CONCENTRATION OF HEAVY METALS IN SOIL CONTAMINATED WITH CRUDE OIL AT TWO IRAQUIAN SITES ACCORDING TO ENVIRONMENTAL INDICES OF POLLUTION. Nativa, [S. l.], v. 11, n. 4, p. 5458–565, 2023. DOI: 10.31413/nat.v11i4.16521. Disponível em: https://periodicoscientificos.ufmt.br/ojs/index.php/nativa/article/view/16521. Acesso em: 5 dez. 2025.