1. Number of People without Access to Safe Drinking Water, 2020. https://ourworldindata.org/grapher/number-without-safe-drinking-water. (Accessed 9 November 2021).
2. Death Rate Attributed to an Unsafe Water Source, 2017. https://ourworldindata.org/grapher/death-rate-unsafe-water-source. (Accessed 9 November 2021).
3. Adsorption of Cu(II), Pb(II), Co(II), Ni(II), and Cd(II) from aqueous solution by poly(aryl ether ketone) containing pendant carboxyl groups (PEK-L): equilibrium, kinetics, and thermodynamics;Zhao;Chem. Eng. J.,2011
4. Lead toxicity, A review of the literature. Part I: exposure, evaluation, and treatment;Patrick;Alternative Med. Rev.,2006
5. Lead toxicity: a review;Wani;Interdiscipl. Toxicol.,2015