دورية أكاديمية
Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
| العنوان: | Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China |
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| المؤلفون: | Wenyan He, Fei Li, Jiang Yu, Min Chen, Yun Deng, Jia Li, Xiliang Tang, Zhuoyu Chen, Zhongluan Yan |
| المصدر: | Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021) |
| بيانات النشر: | Nature Portfolio, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract Studies on trace element (TE) pollution in abiotic matrices have typically focused on water, sediment, and soil, either separately or in pairs. The importance of multi-media connectivity has been ignored. This study analyzed the concentrations of 6 TEs in three connected environmental compartments of a 28-km section of the lower reach of the Jinsha River. The ecological risk posed by TEs was higher in soil than in sediment. The contribution of exposure pathways to human health risk were ranked as ingestion > dermal contact > inhalation. An improved regional environmental risk index (RERI) method was then developed to evaluate the comprehensive risk on both ecology and human health caused by TEs. The average RERI value was generally higher in the wet season (0.42) than in the dry (0.41) and dry-to-wet transition seasons (0.08) because of the combined effects of the high TE concentrations in riparian soil and the long exposure time. Source apportionment indicated that industrial activities, weathering of parent rock, and agricultural activities were possible sources of TEs in this region. The methods and results of this study could inform local environmental management and provide references for similar cases wherein multiple compartments of river systems should be considered. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-021-99626-w |
| URL الوصول: | https://doaj.org/article/1f6155136c294b1abea13d1e8125de5a |
| رقم الأكسشن: | edsdoj.1f6155136c294b1abea13d1e8125de5a |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-021-99626-w |