Risk assessment and source apportionment of heavy metals in the soil-water-grain system in a typical area of the central Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Zha, Xinjie2; An, Jialu3,4,5; Deng, Liyuan2; Gao, Xue6,7; Tian, Yuan1 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 168页码:112801 |
| 关键词 | Soil-water-grain system Heavy metals Ecological risk assessment Health risk assessment Qinghai-Tibet Plateau |
| DOI | 10.1016/j.ecolind.2024.112801 |
| 产权排序 | 7 |
| 文献子类 | Article |
| 英文摘要 | Heavy metals (HMs) within the soil-water-grain system have substantial effects on both eco-environmental and human health. This study collected 232 samples (58 surface soil, 89 drinking water, and 85 highland barley) from the central Qinghai-Tibet Plateau (QTP) and analyzed the contamination characteristics, source apportionments, and associated risks of arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg), and lead (Pb). The study employed geochemical normalization factors, biotoxicity assessment methods, ecological risk and health risk assessment models, and the Positive matrix factorization (PMF) model to assess the soil-water-grain system. The results showed no accumulation of HMs in highland barley, and no biotoxicity was observed. Soil was identified as the primary medium contributing to ecological and health risks, with overall risk levels ranging from slight to moderate, particularly higher in the northern and eastern regions of the study area. Cr posed noncarcinogenic risks to local children in 100% of cases and to adults in 27.27% of cases. Pb presented noncarcinogenic risks in 81.82% of cases for children and 36.36% for adults. Furthermore, As, Cd, and Cr were found to pose carcinogenic risks to both children and adults. Non-carcinogenic and carcinogenic risks were more pronounced in children than in adults. Children's health risks were primarily driven by As concentrations in grains, with a sensitivity contribution exceeding 90%. The Monte Carlo simulation (MCS) indicated that ingestion rates were more sensitive for children, while body weight showed an inverse relationship. The PMF model identified three potential sources of HMs: anthropogenic, geogenic, and environmental. Therefore, to ensure the sustainable development of ecology and the health of residents, it is urgent to conduct routine soil remediation and maintain a balanced diet to mitigate the migration and transformation of HMs in the study area and improve the health level of residents. |
| WOS关键词 | HEALTH-RISKS ; QUALITY ; CADMIUM ; IDENTIFICATION ; MODEL |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001351412900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/209509]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Tian, Yuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Datun Str 11A, Beijing 100101, Peoples R China 2.Xian Univ Finance & Econ, Changning Str 360, Xian 710100, Peoples R China 3.Changan Univ, Sch Water & Environm, Xian, Peoples R China 4.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Minist Educ, Xian, Peoples R China 5.Changan Univ, Key Lab Ecohydrol & Water Secur Arid Semiarid Reg, Minist Water Resources, Xian, Peoples R China 6.Tibet Acad Agr & Anim Husb Sci, Inst Agr Resources & Environm, Jinzhu Str130, Lhasa 850000, Peoples R China 7.State Key Lab Hulless Barley & Yak Germplasm Resou, Jinzhu Str130, Lhasa 850000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zha, Xinjie,An, Jialu,Deng, Liyuan,et al. Risk assessment and source apportionment of heavy metals in the soil-water-grain system in a typical area of the central Qinghai-Tibet Plateau[J]. ECOLOGICAL INDICATORS,2024,168:112801. |
| APA | Zha, Xinjie,An, Jialu,Deng, Liyuan,Gao, Xue,&Tian, Yuan.(2024).Risk assessment and source apportionment of heavy metals in the soil-water-grain system in a typical area of the central Qinghai-Tibet Plateau.ECOLOGICAL INDICATORS,168,112801. |
| MLA | Zha, Xinjie,et al."Risk assessment and source apportionment of heavy metals in the soil-water-grain system in a typical area of the central Qinghai-Tibet Plateau".ECOLOGICAL INDICATORS 168(2024):112801. |
入库方式： OAI收割
来源：地理科学与资源研究所
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