Faculty of Environmental Science and Engineering, Babeș-Bolyai University, 30 Fântânele, 400294 Cluj-Napoca, Romania.
National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath, 400293 Cluj-Napoca, Romania.
Int J Environ Res Public Health. 2023 Jan 11;20(2):1342. doi: 10.3390/ijerph20021342.
Integrated study of both water and sediment in lakes provides important information regarding the human impact on the environment. The current work is focused on the correlation between age, source, composition, and degree of human intervention over the last 178 years and health impact of sediments from Lacu Sărat Lake (Romania), one of the most important balneo-climateric resorts in the country. The novelty relies on the fact that this is the first time the temporal patterns of metal contamination and the human health effects associated with the metal exposure from sediment core samples have been assessed. The sediment contamination status was determined by evaluating several indices, such as the enrichment factor, geo-accumulation index, metal pollution index, and potential ecological risk index, etc. Results showed a significant accumulation of Cd, Cr, As and Ni and a major contribution of Pb, Zn, Cd, Hg, Cr as well as Cu to the potential acute toxicity. The sediment quality guidelines emphasized a risk concerning the life and proper development of benthic organisms in Lacu Sărat Lake. Moreover, the incidental ingestion lifetime carcinogenic risk values for As and Cr suggest a potential risk of developing cancer. A strong human impact was observed especially between 1950 and 1990, which can be attributed to the rapid economic growth and intensive industrial development strategies pursued by the communist political regime in Romania.
对湖泊水和沉积物进行综合研究，可以为人类活动对环境的影响提供重要信息。目前的工作重点是研究过去 178 年来年龄、来源、组成和人类干预程度与 Lacu Sărat 湖（罗马尼亚）沉积物健康影响之间的相关性，该湖是该国最重要的矿泉气候疗养胜地之一。这项研究的新颖之处在于，这是首次评估金属污染的时间模式以及与沉积物芯样品中金属暴露相关的人类健康影响。通过评估富集因子、地积累指数、金属污染指数和潜在生态风险指数等多个指标，确定了沉积物的污染状况。结果表明，Cd、Cr、As 和 Ni 大量积累，Pb、Zn、Cd、Hg、Cr 和 Cu 对潜在急性毒性的贡献较大。沉积物质量指南强调了拉库·萨雷湖底栖生物生命和正常发育的风险。此外，As 和 Cr 的偶然摄入终生致癌风险值表明存在患癌症的潜在风险。在 1950 年至 1990 年期间，观察到了强烈的人类影响，这可归因于罗马尼亚共产主义政治政权推行的快速经济增长和密集型工业发展战略。
