Division of Earth and Environmental Sciences, Korea Basic Science Institute, Chungbuk, 28119, South Korea.
Department of Science Education, Ewha Womans University, Seoul, 03760, South Korea.
Nat Commun. 2019 Dec 3;10(1):5371. doi: 10.1038/s41467-019-13376-y.
The use of lithium (Li) has dramatically increased during the last two decades due to the proliferation of mobile electronic devices and the diversification of electric-powered vehicles. Lithium is also prescribed as a medication against bipolar disorder. While Li can exert a toxic effect on living organisms, few studies have investigated the impact of anthropogenic inputs on Li levels in the environment. Here we report Li concentrations and Li isotope compositions of river, waste and tap water, and industrial products from the metropolitan city of Seoul. Results show that the large increase in population density in Seoul is accompanied by a large enrichment in aqueous Li. Lithium isotopes evidence a major release from Li-rich materials. Water treatment protocols are also shown to be inefficient for Li. Our study therefore highlights the need for a global Li survey and adequate solutions for minimizing their impact on ecosystems and city dwellers.
由于移动电子设备的普及和电动交通工具的多样化，过去二十年里，锂（Li）的使用量急剧增加。锂也被开为治疗双相情感障碍的药物。虽然 Li 对生物体可能产生毒性影响，但很少有研究调查人为输入对环境中 Li 水平的影响。在这里，我们报告了首尔大都市地区的河水、废水和自来水以及工业产品中的 Li 浓度和 Li 同位素组成。结果表明，首尔人口密度的大幅增加伴随着水中 Li 的大量富集。Li 同位素表明大量富含 Li 的材料被释放出来。水处理方案对 Li 的去除效率也很低。因此，我们的研究强调了进行全球 Li 调查和采取适当措施以最小化其对生态系统和城市居民的影响的必要性。
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