The Acute Toxicity of tin dioxide Nanoparticles on Chlorella vulgaris Algae

Subject Areas : Biotechnological Journal of Environmental Microbiology

Fatemeh Shariati ¹ , Mahrooz Ziksari ² , Zohreh Ramzanpour ³

1 - Department of Environment, Lahijan Branch, Islamic Azad University, Lahijan, Iran
2 - Department of Environment, Lahijan Branch, Islamic Azad University, Lahijan, Iran
3 - nternational Research Institute of Sturgeons, Rasht, Iran

Received: 2023-05-15 Accepted : 2023-07-01 Published : 2022-10-01

Keywords: Toxicity, Chlorella vulgaris, algae, Tin oxide nanoparticles,

Abstract :

Nowadays, nanotechnology and the use of its components, including nanoparticles, have successfully improved the situation of industries in advancing production goals. Among these nanoparticles, SnO2 or tin dioxide nanoparticles, which was used in this study, can be mentioned. Tin dioxide is used in the manufacture of batteries and fuel cells, capacitors, and catalysts, and the health of living organisms will be affected by the negative effects of factory effluents entering rivers and other water sources. In this study, the biotoxicity of tin oxide nanoparticles on Chlorella vulgaris algae, which is one of the primary producers and most important levels of the food chain was investigated. This research was conducted by the OECD acute toxicity test method (Counting method for algae, method 201) and statistical probit analysis was performed to obtain toxicity data using the probit method. The results of exposure for Chlorella vulgaris in 48 and 72 hours, were EC50 and EC90 equal to 6.99, 57.54 and 13.08, and 1.07 x 1010 mg L-1, respectively. The highest growth decrease after 48 and 72 hours was observed in 5.5 mg L-1 SnO2 NP. During the test period, no morphological changes were observed for any of the microorganisms, which are based on the toxicity of tin oxide nanoparticles.