Kananke T, Wansapala J, Gunaratne A. Pb and Cr Contaminations of Irrigation Water, Soils and Green Leafy Vegetables Collected from Different Areas of Colombo District, Sri Lanka. Pak. J. Nutr. [Internet]. 2015 Aug. 15 [cited 2025 Aug. 26];14(9):593–602. Available from: https://pjnonline.org/pjn/article/view/2189