Abstract: (3183 Views)
The recent increase in nanomaterials usage has led to rising concerns about the health risks of organisms and their environmental impacts. Thus, there is much attention to investigating environmental parameters which change the nutrition quality of algae. In this study, growth inhabitation was evaluated during 2 steps and chlorophyll-a content of microalgae Chaetoceros muelleri which was exposed to bulk Ti and nano-TiO2 in 3rd, 6th, and 9th days. The results showed algal growth inhabitation up to 70 and 50% in concentration 50 ppm for nano-TiO2 and bulk Ti, respectively. Moreover, we found a reduction of chlorophyll content in comparison with control groups, also observations were illustrated that trend of chlorophyll content reduction on the 9th day was higher than the 6th day and in 6th day was more than 3rd day (9th day> 6th day>3rd day). In addition, findings demonstrated, nano-TiO2 toxicity was higher than bulk Ti. We aimed to investigate the toxic effects of bulk Ti and nano-TiO2 on food chain organisms and transportation of these materials along with the food chain and finally, how to influence the health of humans and the environment.
Type of Study:
Research |
Subject:
Special Published: 2020/06/30