Appraising ecotoxicological risk of mercury species and their mixtures in sediments to aquatic biota using diffusive gradients in thin films (DGT)
文献类型： 外文期刊
作者： Gu, Yang-Guang 1 ; Huang, Hong-Hui 1 ; Jiang, Shi-Jun 3 ; Gong, Xiu-Yu 1 ; Liao, Xiu-Li 1 ; Dai, Ming 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511485, Peoples R China
3.Hohai Univ, Coll Oceanog, Nanjing 245700, Peoples R China
4.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China
5.Minist Agr & Rural Affairs, Key Lab Open Sea Fishery Dev, Guangzhou 510300, Peoples R China
关键词： Mercury species; Biological risk; Mixture toxicity; Sediment; Bioavailability
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）
ISSN： 0048-9697
年卷期： 2022 年 825 卷
页码：
收录情况： SCI
摘要： Mercury (Hg) is a global, persistent and inevitable pollutant, the toxicity of which is mostly reflected in its species including inorganic Hg (InHg) and methyl mercury (MeHg). Using diffusive gradients in thin films (DGT) is deemed as a reliable technique to determine the bioavailability of pollutants. This study is the first attempt to assess the integrated toxicity of mercury species mixtures in sediments to the aquatic biota based on the DGT technique. In the course, the Daya Bay under serious anthropogenic influences was selected as the study case. The results showed that the DGT concentrations of InHg and MeHg were detected as 0.30-1.93 mu g/L and 0.28-1.94 mu g/L respectively in the surface sediments collected from the Daya Bay. In terms of the toxicity of single mercury species, the risk quotient (RQ) values of InHg and MeHg significantly exceeded 1, indicating that the adverse effects of InHg and MeHg should not be ignored. In terms of the integrated toxicity of mercury species mixtures, the probabilistic biological risk assessment results demonstrate that Daya Bay features low (3.32%) probability of toxic effects in its surface sediments to the aquatic biota.
- 相关文献
作者其他论文 更多>>
-
Environmental and dietary exposure to 24 polycyclic aromatic hydrocarbons in a typical Chinese coking plant
作者：Gao, Yanpeng;Geng, MingZe;Wang, Guangyao;Yu, Hang;Ji, Yuemeng;An, Taicheng;Gao, Yanpeng;Geng, MingZe;Wang, Guangyao;Yu, Hang;Ji, Yuemeng;An, Taicheng;Jordan, Richard W.;Gu, Yang-Guang;Jiang, Shi-Jun;Gu, Yang-Guang;Gu, Yang-Guang
关键词：Polycyclic aromatic hydrocarbons (PAHs); Dietary exposure; Soil pollution; Atmospheric pollution; Drinking water contamination; Multivariate analysis
-
Calcareous nannoplankton response to middle-late Eocene climate and sea-level changes in the SW Neo-Tethys
作者：Messaoud, Jihede Haj;Thibault, Nicolas;Aljahdali, Mohammed H.;Yaich, Chokri;Gu, Yang-Guang
关键词：Biodiversity; Preservation; Dissolution proxies; Planktonic/Benthic ratio; Ostracods
-
A new strategy for optimizing marine protection networks by considering functional connectivity: An example of Tachypleus tridentatus
作者：Chen, Xiaohai;Gu, Yang-Guang;Xie, Xiaoyong;Ying, Ziwei;Luo, Zimeng;Zhang, Wanling;Fan, Jing;Chen, Xiaohai;Ying, Ziwei;Luo, Zimeng;Zhang, Wanling;Fan, Jing;Xie, Xiaoyong;Xie, Mujiao;Xie, Xiaoyong
关键词：Marine protected areas; Horseshoe crabs; Connectivity; Ecological corridors; Optimization; Diminishing returns
-
Bioavailability and health risk assessment of Zn and Cd in edible tissues of two typical shellfish species using in vitro gastrointestinal digestion
作者：Wang, Xu-Nuo;Wang, Zeng-Huan;Gu, Yang-Guang;Jordan, Richard W.;Gu, Yang-Guang;Jiang, Shi-Jun;Jiang, Shi-Jun;Gu, Yang-Guang;Gu, Yang-Guang;Wang, Xu-Nuo;Wang, Zeng-Huan;Gu, Yang-Guang
关键词：Bioavailability; Biomimetic in vitro method; Crassostrea rivularis; Paphia undulata; Zinc; Cadmium
-
Nonmetric multidimensional scaling and probabilistic ecological risk assessment of trace metals in surface sediments of Daya Bay (China) using diffusive gradients in thin films
作者：Gu, Yang-Guang;Huang, Hong-Hui;Wu, Feng-Xia;Jiang, Shi-Jun;Gu, Yang-Guang;Jiang, Shi-Jun;Jordan, Richard W.;Gu, Yang-Guang;Huang, Hong-Hui;Wu, Feng-Xia;Gu, Yang-Guang;Huang, Hong-Hui;Wu, Feng-Xia;Gu, Yang-Guang
关键词：Aquatic biota; Bioavailability; Daya bay; Ecological risk; Trace metal mixtures; Integral toxicity
-
Probabilistic ecotoxicological risk assessment of heavy metal and rare earth element mixtures in aquatic biota using the DGT technique in coastal sediments
作者：Gu, Yang-Guang;Gu, Yang-Guang;Jordan, Richard W.;Wang, Ya-Su;Jiang, Shi-Jun;Su, Hong;Gu, Yang-Guang;Gu, Yang-Guang;Gu, Yang-Guang;Gu, Yang-Guang
关键词：Aquatic biota; Combined toxicity; Heavy metals; Rare earth elements; South China Sea; Xincun Lagoon
-
Rare earth elements in sediments from a representative Chinese mariculture bay: Characterization, DGT-based bioaccessibility, and probabilistic ecological risk
作者：Gu, Yang-Guang;Wang, Xu-Nuo;Wang, Zeng-Huan;Jiang, Shi-Jun;Gu, Yang-Guang;Jordan, Richard W.;Gu, Yang-Guang;Jiang, Shi-Jun;Gu, Yang-Guang;Gu, Yang-Guang;Gu, Yang-Guang
关键词：Aquaculture; Rare earth elements; Ecotoxicological risk; Combined toxicity; Bioaccessibility; Zhelin bay
