| 杨朝莲,张清海,卢勤辉,程建中,罗国飞,李大栓.贵州喀斯特高地质背景区农产品Cd、Cu、Zn、Se、F含量特征及膳食暴露风险[J].食品安全质量检测学报,2022,13(15):5008-5016 |
| 贵州喀斯特高地质背景区农产品Cd、Cu、Zn、Se、F含量特征及膳食暴露风险 |
| Characteristics and dietary exposure risk of Cd, Cu, Zn, Se and F content in agricultural products from karst high geological background areas in Guizhou Province |
| 投稿时间：2022-04-18 修订日期：2022-07-20 |
| DOI： |
| 中文关键词: 高地质背景区 元素 农产品 相关性分析 暴露风险 |
| 英文关键词:high geological background area element agricultural products correlation analysis exposure risk |
| 基金项目:国家自然科学基金项目(31960507、42167054)、贵州省高等学校工程研究中心项目(黔教合KY字[2020]014) |
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| Author | Institution |
| YANG Chao-Lian | School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University |
| ZHANG Qing-Hai | School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University |
| LU Qin-Hui | School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University |
| CHENG Jian-Zhong | State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences |
| LUO Guo-Fei | School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University |
| LI Da-Shuan | School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University |
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| 中文摘要: |
| 目的 分析贵州高地质背景区的农产品多元素特征, 并探讨农产品元素含量特征及暴露风险。方法 采集贵州高地质背景区农产品样品231份(大米83份、玉米133份、马铃薯15份), 分别采用电感耦合等离子体质谱仪和氟离子选择电极测定样品镉(Cd)、铜(Cu)、锌(Zn)、硒(Se)和氟(F)的含量, 对结果进行相关性和空间分布特征分析, 并进行膳食暴露风险评价。结果 根据GB 2762—2017《食品安全国家标准 食品中污染物限量》的限量标准, 元素Cd在大米、玉米、马铃薯样品中超标率分别为28.916%、25.564%、26.667%。元素F在玉米中含量最高达4.717 mg/kg。元素间相关性分析结果显示, 马铃薯中Cd与Zn之间呈显著正相关(P<0.05); 大米中Se与Zn之间呈显著负相关(P<0.05), Se与Cd之间呈极显著负相关(P<0.01), 而Cd与Cu、Zn、F呈极显著正相关(P<0.01), Zn与Cu呈显著正相关(P<0.05); 玉米中F与Cd之间呈显著负相关(P<0.05), 而Zn、Cd与Cu、F与Zn呈极显著正相关(P<0.01)。玉米中F含量呈西高东低, Cd含量呈西低东高地理分布趋势。大米中Se含量较高的地区Cd含量相对较低, 西北部地区大米Se含量较高, 中东部地区Cd含量较高。膳食暴露风险评估显示大米、玉米存在Cd暴露风险。结论 贵州喀斯特高地质背景区种植的农产品Cd、F污染风险问题突出, 农产品中元素间的相互作用影响元素的吸收, 且食用该地区种植的玉米、大米有潜在的Cd暴露风险, 本研究可为贵州省农产品质量安全及合理农作物种植规划提供参考。 |
| 英文摘要: |
| Objective To analyze the multi-elements characteristics of agricultural products of high geological background areas in Guizhou Province, and explore the content characteristics and exposure risks of agricultural products. Methods The 231 samples (83 for rice, 133 for corn, and 15 for potato) were collected in the high geological background areas of Guizhou Province, and the content of cadmium (Cd), copper (Cu), zinc (Zn), selenium (Se) and fluorine (F) were determined by inductively coupled plasma mass spectrometry and fluoride ion selective electrode, respectively. The correlation and spatial distribution characteristics of the results were analyzed, and dietary exposure risk assessment was carried out. Results According to GB 2762—2017 National standard for food safety-Limit of pollutants in food, the over-standard rate of element Cd in rice, corn and potato samples was 28.916%, 25.564% and 26.667%, respectively. The content of element F in corn was up to 4.717 mg/kg. The results of the correlation analysis among elements showed as followed: There was a significant positive correlation between Cd and Zn in potato (P<0.05). In rice, there was a significant negative correlation between Se and Zn (P<0.05), a highly significant negative correlation between Se and Cd (P<0.01), a highly significant positive correlation between Cd and Cu, Zn, and F (P<0.01), and a significant positively correlated between Zn and Cu (P<0.05). Moreover, F was significant negatively correlated with Cd in corn (P<0.05). Besides, Zn, Cd and Cu, F and Zn were highly significant positive correlation in corn (P<0.01). The F content was high in the west and low in the east, while the content of Cd was low in the west and high in the east in maize. Meanwhile, The regions with higher Se content had relatively lower Cd content, the northwestern region had higher Se content, and the central and eastern regions had higher Cd content in rice. Dietary exposure risk assessment showed that rice and corn were at risk of Cd exposure. Conclusion The risk of Cd and F pollution of agricultural products planted in the karst high geological background area of Guizhou Province is prominent. The interaction of elements in agricultural products affects the absorption of elements, and the consumption of corn and rice planted in this area has a potential risk of Cd exposure. This study can provide a reference for the quality and safety of agricultural products and reasonable crop planting planning in Guizhou Province. |
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