Comparative Acute Toxicity and Oxidative Stress Responses in Three Aquatic Species Exposed to Stannic Oxide Nanoparticle
- PDF / 1,068,552 Bytes
- 6 Pages / 595.276 x 790.866 pts Page_size
- 101 Downloads / 175 Views
Comparative Acute Toxicity and Oxidative Stress Responses in Three Aquatic Species Exposed to Stannic Oxide Nanoparticles and Stannic Chloride Zhuang Wang1 · Lan Song2,3 · Fan Zhang1 · De‑Gao Wang4 Received: 5 July 2020 / Accepted: 13 November 2020 / Published online: 25 November 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract We experimentally investigated the toxicity of stannic oxide nanoparticles (SnO2 NPs) to three freshwater species including Scenedesmus obliquus, Daphnia magna, and Danio rerio. To evaluate effect, toxicological impacts were compared to that of stannic chloride ( SnCl4). Based on the actual concentration of Sn, SnO2 NPs suspensions inhibited growth of S. obliquus in a dose-dependent manner, demonstrating a median effect concentration of 2.28 ± 0.53 mg/L. However, SnO2 NP suspensions were found to exhibit limited acute toxicity in D. magna and D. rerio. Moreover, the toxicity of the S nO2 NP suspension was lower than S nCl4 for all three trophic aquatic organisms. Comparison of component-specific contribution to overall toxicity indicated that, in SnO2 NP suspensions, particulate Sn more significantly contributed to toxicity than dissolved Sn-ions. Furthermore, we found that the toxic mechanism of the SnO2 NP suspension involved the induction of oxidative stress by increasing intracellular ROS accumulation. Keywords Stannic oxide · Nanoparticles · Aquatic organisms · Toxicity · Oxidative stress The toxicity of engineered nanoparticles (ENPs) has been a rising concern, due to their increasing production Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00128-020-03052-z) contains supplementary material, which is available to authorized users. * Zhuang Wang [email protected] 1
School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing 210044, People’s Republic of China
2
State Environmental Protection Key Laboratory of Integrated Surface Water‑Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
3
Shenzhen Institute of Sustainable Development, Shenzhen 518055, People’s Republic of China
4
College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, People’s Republic of China
and extensive application (Hristozov et al. 2016; Peijnenburg et al. 2015). Aquatic and terrestrial ecosystems can be exposed to significant concentrations of ENPs released through irregularly transport, discharge, and disposal (Lewis et al. 2019; Zhu et al. 2019b). Ecotoxicology is an important consideration when carrying out environmental risk assessments of ENPs (Lekamge et al. 2020; Naasz et al. 2018). Ecotoxicity tests (known as direc
Data Loading...
