The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China
In this study, the total content of REEs ranged from 1.32 to 67.74 μg/kg, with a predominant presence of light REEs. The ΔEu and ΔCe values, which exceeded and approached 1, respectively, indicated positive Eu anomalies and low Ce anomalies. Wild fish were categorized into high-, medium-, and low-RE...
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2024-12-01
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| author | Xiongyi Miao Xueqin Wei Xiqian Zhao Yupei Hao Wei Bao |
| author_facet | Xiongyi Miao Xueqin Wei Xiqian Zhao Yupei Hao Wei Bao |
| author_sort | Xiongyi Miao |
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| description | In this study, the total content of REEs ranged from 1.32 to 67.74 μg/kg, with a predominant presence of light REEs. The ΔEu and ΔCe values, which exceeded and approached 1, respectively, indicated positive Eu anomalies and low Ce anomalies. Wild fish were categorized into high-, medium-, and low-REEs-bioaccumulation groups using cluster analysis. Higher LRs/HRs and ΔEu values, coupled with lower ΔCe values, in fish from the high-bioaccumulation group suggested that increased bioaccumulation mitigated fractionation. Omnivorous fish with higher REEs levels and lower LRs/HRs indicated broader feeding sources may enhance REE bioaccumulation and diminish fractionation. Elevated REEs concentrations and LRs/HRs in demersal fish highlighted a preferential accumulation of light REEs in the benthic environment. Smaller fish with higher REEs levels but lower LRs/HRs were likely associated with complex feeding sources. Regression analysis revealed that fish with lengths and weights of less than 18 cm and 130 g, respectively, were more susceptible to REEs bioaccumulation. Despite higher ADI values indicating a greater risk for children and <i>Pelteobagrus fulvidraco</i>, all ADI values within 70 μg/(kg·d) suggested that fish consumption poses no risk. This study confirmed that the fractionation of REEs in fish can be used to trace their bioconversion. |
| format | Article |
| id | doaj-art-2e0916b039004f36aa2f70804055a3cd |
| institution | DOAJ |
| issn | 2076-2615 |
| language | English |
| publishDate | 2024-12-01 |
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| spelling | doaj-art-2e0916b039004f36aa2f70804055a3cd2025-08-20T02:53:40ZengMDPI AGAnimals2076-26152024-12-011424356710.3390/ani14243567The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, ChinaXiongyi Miao0Xueqin Wei1Xiqian Zhao2Yupei Hao3Wei Bao4School of Geography and Environmental Science & School of Karst Science, Guizhou Normal University, Guiyang 550001, ChinaSchool of Geography and Environmental Science & School of Karst Science, Guizhou Normal University, Guiyang 550001, ChinaSchool of Geography and Environmental Science & School of Karst Science, Guizhou Normal University, Guiyang 550001, ChinaDepartment of Modern Engineering, Anshun Technical College, Anshun 561000, ChinaCollege of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, ChinaIn this study, the total content of REEs ranged from 1.32 to 67.74 μg/kg, with a predominant presence of light REEs. The ΔEu and ΔCe values, which exceeded and approached 1, respectively, indicated positive Eu anomalies and low Ce anomalies. Wild fish were categorized into high-, medium-, and low-REEs-bioaccumulation groups using cluster analysis. Higher LRs/HRs and ΔEu values, coupled with lower ΔCe values, in fish from the high-bioaccumulation group suggested that increased bioaccumulation mitigated fractionation. Omnivorous fish with higher REEs levels and lower LRs/HRs indicated broader feeding sources may enhance REE bioaccumulation and diminish fractionation. Elevated REEs concentrations and LRs/HRs in demersal fish highlighted a preferential accumulation of light REEs in the benthic environment. Smaller fish with higher REEs levels but lower LRs/HRs were likely associated with complex feeding sources. Regression analysis revealed that fish with lengths and weights of less than 18 cm and 130 g, respectively, were more susceptible to REEs bioaccumulation. Despite higher ADI values indicating a greater risk for children and <i>Pelteobagrus fulvidraco</i>, all ADI values within 70 μg/(kg·d) suggested that fish consumption poses no risk. This study confirmed that the fractionation of REEs in fish can be used to trace their bioconversion.https://www.mdpi.com/2076-2615/14/24/3567rare earth elementswild fishbioaccumulationhealth risk assessmentGuangzhou city |
| spellingShingle | Xiongyi Miao Xueqin Wei Xiqian Zhao Yupei Hao Wei Bao The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China Animals rare earth elements wild fish bioaccumulation health risk assessment Guangzhou city |
| title | The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China |
| title_full | The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China |
| title_fullStr | The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China |
| title_full_unstemmed | The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China |
| title_short | The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China |
| title_sort | bioaccumulation fractionation and health risk of rare earth elements in wild fish of guangzhou city china |
| topic | rare earth elements wild fish bioaccumulation health risk assessment Guangzhou city |
| url | https://www.mdpi.com/2076-2615/14/24/3567 |
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