| 李佳琳,刘金华,孙琪,于麗,高长峥,王鸿斌,赵兴敏.吉林省西部典型高氟区土壤及蔬菜氟分布特征和污染评价[J].农业环境科学学报,2025,44(9):2296-2304. |
| 吉林省西部典型高氟区土壤及蔬菜氟分布特征和污染评价 |
| Fluoride distribution characteristics and pollution assessment of soil and vegetables in a typical high-fluoride area in western Jilin Province |
| 投稿时间：2024-10-18 |
| DOI：10.11654/jaes.2024-0892 |
| 中文关键词: 氟形态 氟迁移 苏打盐碱化土壤 富集系数 污染评价 |
| 英文关键词: fluorine speciation fluorine migration soda saline-alkali soil enrichment coefficient contamination evaluation |
| 基金项目:国家重点研发计划项目（2023YFD2301705）；吉林省科技发展重点研发项目（20230303006SF，20240203006NC） |
|
| 摘要点击次数: 1028 |
| 全文下载次数: 729 |
| 中文摘要: |
| 为探究吉林省西部土壤中氟的赋存形态与蔬菜中氟含量的内在关系，掌握高氟区蔬菜的氟污染状况，保障该地区农用地的安全有效利用和蔬菜安全优质生产，本研究在吉林省西部典型高氟区的乾安县采集了12种67个蔬菜样品及其根际土壤样品，并采集了4种8个野生植物样品作为对照，分析根际土壤和蔬菜体内的氟含量，并利用富集系数和污染指数对蔬菜的健康风险进行评价。结果表明：蔬菜根际土壤的总氟（T-F）、水溶态氟（Ws-F）、可交换态氟（Ex-F）、铁锰氧化物结合态氟（Fe/Mn-F）、有机束缚态氟（Or-F）和残余态氟（Res-F）的含量范围分别为 202.79~319.12、1.45~9.89、3.49~21.25、6.95~25.72、1.78~5.16 mg·kg-1和174.67~289.97 mg·kg-1，平均值分别为242.74、4.42、7.63、12.77、3.50 mg·kg-1和214.41 mg·kg-1。该地区根际土壤中Ws-F的平均含量是氟病发生区表层土壤 Ws-F平均含量的 1.77倍，这与苏打盐碱化土壤具有较高的 pH和 HCO- 3含量有关。该地生物有效态氟（Ef-F）含量较高，氟更易于从土壤迁移至蔬菜体内。该地蔬菜氟含量范围为0.21~8.89 mg·kg-1，氟含量和富集系数表现为叶片部分>果实部分，具体表现为果实类蔬菜茎叶>叶菜类蔬菜茎叶>果实类蔬菜果实。除茄子外，蔬菜中氟与土壤中Ws-F呈显著正相关。蔬菜可食用部分中有40.00%氟含量超过国家规定标准（1 mg·kg-1），健康风险评估结果表明，苦菊对儿童的健康造成一定风险。研究表明，研究区土壤中的Ws-F和Ex-F含量较高，氟的生物有效性较强，致使该地区部分蔬菜体内的氟含量超出我国的健康标准，建议种植氟富集系数较低的果实类蔬菜以降低氟健康风险。 |
| 英文摘要: |
| The aim of this research is to explore the relationship between fluorine fraction in soil and content in vegetables in the western Jilin Province. The fluorine distribution of vegetables in high-fluorine areas will be grasped. The result can provide theoretical support for effective use of agricultural land and safe production of vegetables. 67 vegetable samples of 12 types and their rhizosphere soil samples, and eight wild plant samples of four types as controls were collected from Qian ′ an County, a typical high-fluorine area in the western Jilin Province. The fluorine contents in rhizosphere soil and vegetables were analyzed, and their health risk was evaluated using the enrichment coefficient and the pollution index. The results showed that total fluorine（T-F）, water-soluble fluorine（Ws-F）, exchangeable fluorine（ExF）, iron-manganese bound fluorine（Fe/Mn-F）, organically bound fluorine（Or-F）and residual fluorine（Res-F）in rhizosphere soil was 202.79-319.12, 1.45-9.89, 3.49-21.25, 6.95-25.72, 1.78-5.16 mg·kg-1, and 174.67-289.97 mg·kg-1, respectively, with an average values of 242.74, 4.42, 7.63, 12.77, 3.50 mg·kg-1 and 214.41 mg·kg-1, respectively. Its average content of Ws-F was 1.77 times that of surface soil in fluorosis areas, which was related to the higher level of pH and HCO - 3 content in soda saline-alkali soils. The content of biologically available fluorine（Ef-F）was high, leading to fluoride more easily transferred from soil to vegetables. The fluorine content in vegetables ranged from 0.21 mg·kg-1 to 8.89 mg·kg-1. The order of fluorine content and enrichment coefficients in different parts was leaves>fruits. It was more detailed in the order of fruity vegetables>leafy vegetables>fruits. There was a significantly positive relationship between fluorine in vegetables and Ws-F in the soil except eggplants. Fluorine content in 40.00% of the tested vegetables exceeded the national standard（1 mg·kg-1）. The results of health risk assessment indicated that bitter lettuce posed a certain risk to children ′ s health. The content of Ws-F and Ex-F in soda saline-alkali soil was high and its bioavailability was strong, which caused the fluorine content in some vegetables exceeding the national health standards. Fruity vegetables with lower fluorine enrichment coefficient are recommended to be planted to decline fluoride health risks. |
| HTML
查看全文
查看/发表评论 下载PDF阅读器 |
|
|
|
