New isotopic evidence of lead contamination in wheat grain from atmospheric fallout
文献类型：SCI/SSCI论文
| 作者 | Yang J.; Chen, T. B.; Lei, M.; Zhou, X. Y.; Huang, Q. F.; Ma, C.; Gu, R. Y.; Guo, G. H. |
| 发表日期 | 2015 |
| 关键词 | Pb isotopic Pb contamination Wheat grain Atmospheric Fallout Soil heavy-metals trace-metals triticum-aestivum blood lead soil particles cadmium china environment emissions |
| 英文摘要 | Crops could accumulate trace metals by soil-root transfer and foliar uptake from atmospheric fallout, and an accurate assessment of pollution sources is a prerequisite for preventing heavy metal pollution in agricultural products. In this study, we examined Pb isotope rates to trace the sources of Pb in wheat grain grown in suburbs. Results showed that, even in zones with scarcely any air pollution spots, atmospheric fallout was still a considerable source of Pb accumulation in wheat. The concentration of Pb in wheat grain has poor correlation with that in farm soil. The Pb concentration in wheat grains with dust in bran coat was significantly higher than that in wheat grains, which indicates that Pb may accumulate by foliar uptake. The Pb isotope rate has obvious differences between the soil and atmospheric fallout, and scatter ratio is significantly closer between the wheat grain and atmospheric fallout. Atmospheric fallout is a more significant source of Pb concentration in wheat grains than in soil. As far as we know, this is the first study on the main sources of lead in grain crop (wheat) samples with isotope. This study aims to improve our understanding of the translocation of foliar-absorbed metals to nonexposed parts of plants. |
| 出处 | Environmental Science and Pollution Research |
| 卷 | 22 |
| 期 | 19 |
| 页 | 14710-14716 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0944-1344 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38983]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yang J.,Chen, T. B.,Lei, M.,et al. New isotopic evidence of lead contamination in wheat grain from atmospheric fallout. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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