消费类产品衍生的纳米二氧化钛对海洋硅藻拟菱形藻的影响。
Effects of titanium dioxide nanoparticles derived from consumer products on the marine diatom Thalassiosira pseudonana.
机构信息
Department of Civil, Architectural, and Environmental Engineering, University of Miami, 1251 Memorial Dr. McArthur Engineering Building, Coral Gables, FL, 33146-0630, USA.
Ground Water and Ecosystems Restoration Division, National Risk Management, Research Laboratory, U.S. Environmental Protection Agency, 919 Kerr Research Drive, Ada, OK, 74820, USA.
出版信息
Environ Sci Pollut Res Int. 2016 Oct;23(20):21113-21122. doi: 10.1007/s11356-016-7556-6. Epub 2016 Sep 5.
Increased manufacture of TiO nanoproducts has caused concern about the potential toxicity of these products to the environment and in public health. Identification and confirmation of the presence of TiO nanoparticles derived from consumer products as opposed to industrial TiO NPs warrant examination in exploring the significance of their release and resultant impacts on the environment. To this end, we examined the significance of the release of these particles and their toxic effect on the marine diatom algae Thalassiosira pseudonana. Our results indicate that nano-TiO sunscreen and toothpaste exhibit more toxicity in comparison to industrial TiO and inhibited the growth of the marine diatom T. pseudonana. This inhibition was proportional to the exposure time and concentrations of nano-TiO. Our findings indicate a significant effect, and therefore, further research is warranted in evaluation and assessment of the toxicity of modified nano-TiO derived from consumer products and their physicochemical properties.
随着 TiO 纳米产品产量的增加，人们越来越担心这些产品对环境和公众健康的潜在毒性。因此，有必要对源自消费产品的 TiO 纳米颗粒与工业 TiO NPs 的存在进行识别和确认，以探究它们释放的意义及其对环境的影响。为此，我们研究了这些颗粒的释放及其对海洋硅藻藻类塔玛斯假单胞菌的毒性影响。研究结果表明，与工业 TiO 相比，纳米 TiO 防晒霜和牙膏的毒性更大，并且抑制了海洋硅藻塔玛斯假单胞菌的生长。这种抑制与纳米 TiO 的暴露时间和浓度呈比例关系。我们的研究结果表明存在显著的影响，因此需要进一步研究来评估和评估源自消费产品的改性纳米 TiO 的毒性及其物理化学性质。
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