Journal
JOURNAL OF GEOCHEMICAL EXPLORATION
Volume 219, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.gexplo.2020.106652
Keywords
Beryllium; Sediments; Probabilistic ecological risk; Bioaccessibility; Baiyangdian Lake
Categories
Funding
- National Key Research and Development Program of China [2019YFD0901105]
- Natural Science Foundation of China [41673080]
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Baiyangdian Lake is the largest wetland ecosystem in northern China. It has played an important role in the ecological function of Xiongan New Area, a state-level developing economic zone in northern China since 2017, signifying that pollutant occurrence of the lake is increasingly significant. Beryllium (Be) is an emerging inorganic contaminant and elicited a concern due to its mutagenic and carcinogenic properties. The total and bioaccessible concentrations of Be in sediments of the lake along with its probabilistic risks on aquatic biota were investigated. The total and bioaccessible concentrations of Be were 0.87-4.62 and 0.14-0.36 mg/kg, respectively. The total concentration of Be represented an anthropogenic enrichment and bioaccessible Be was lower than 17% of the total Be concentration. The probabilistic ecological risk assessment based on bioaccessible Be concentration indicated that sediments of Baiyangdian Lake exhibited a low (0.31%) probability of adverse risk to aquatic biota.
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