Ecological Risk Assessment of Neodymium and Yttrium on Rare Earth Element Mine Sites in Ganzhou, China
| العنوان: | Ecological Risk Assessment of Neodymium and Yttrium on Rare Earth Element Mine Sites in Ganzhou, China |
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| المؤلفون: | Rongliang Qiu, Erkai He, Ye-Tao Tang, Si-Qi Xie, Xing Shi, Chun-Mei Zhao, Wen-Shen Liu |
| المصدر: | Bulletin of Environmental Contamination and Toxicology. 103:565-570 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | China, Soil test, Health, Toxicology and Mutagenesis, chemistry.chemical_element, 010501 environmental sciences, Toxicology, Risk Assessment, 01 natural sciences, Mining, Soil, Soil Pollutants, Yttrium, Organic matter, Triticum, 0105 earth and related environmental sciences, Neodymium, chemistry.chemical_classification, Rare-earth element, Vigna, 04 agricultural and veterinary sciences, General Medicine, Pollution, Tailings, Hazard quotient, Phytoremediation, Biodegradation, Environmental, chemistry, Environmental chemistry, Soil water, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Environmental science |
| الوصف: | Nowadays rare earth elements (REEs) are widely applied in high-technology and clean energy products, but their environmental risks are still largely unknown. To estimate the ecological risk of REEs, soil samples were collected from REE mine tailings with and without phytoremediation. The results showed that the tailings had rather low organic matter and high total REE concentrations, up to 808.5 mg/kg. The 10% effective concentration (EC10) of neodymium (Nd) and yttrium (Y) were calculated based on the toxicity tests of seed germination and root growth. For both wheat and mung bean, the EC10 of Nd and Y in soils were in the range of 1053.1-1300.1 mg/kg. The average hazard quotient of mine tailing soil without phytoremediation was higher than that with phytoremediation. All the hazard quotient of Nd and Y were less than 1, indicating that Nd or Y alone was unlikely to cause adverse ecological effects. Given to the coexistence of REEs on mine sites, the ecological risk of REE mixture could be potentially high towards local soil environments, even for soils with phytoremdiation. |
| تدمد: | 1432-0800 0007-4861 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9d9e8d5bc0041374817550c908061d3Test https://doi.org/10.1007/s00128-019-02690-2Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....e9d9e8d5bc0041374817550c908061d3 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320800 00074861 |
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