Assessment of Heavy Metals Pollution in the Tigris River Water within Salah Al-Din Province, and Its Suitability for Irrigation Using the Heavy Metal Pollution Index (HPI) and Metal Index (MI). Euphrates journal of agricultural science, [S. l.], v. 18, n. 3, 2026. Disponível em: https://ejs-agri.com/index.php/EJAS/article/view/397. Acesso em: 2 nov. 2026.