Side effects of nanomaterials on environment

Somayeh Rezaei¹ Sasan Mohsenzadeh²

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محل انتشار : کنفرانس بین المللی روند های نو در مهندسی، علوم و تکنولوژی(etest2020.com)
Abstract :
Nanomaterials are defined as materials composed of unbound particles or as particles in an aggregate or agglomerate state with one or more external dimensions with a size ranging from 1 to 100nm. The vast growth of nanotechnologies with all their far-reaching benefits has fostered concerns about the potential health risks of nanoparticles. Physicochemical reactivity of nanoparticles leads to the formation of free radicals. Control banding can be described as a qualitative or semiquantitative approach for risk assessment and risk management to assist in reducing hazardous engineered nanomaterials. Soil is a major receptor of nanoparticles more so than air or water. Nanomaterials can have substantial negative effects, such as reduction in seed germination and suppression of plant elongation, and can even cause plant death. various applications of nanotechnology have exposed humans and animals to their potential toxicities. To envision the health hazards coupled with engineered nanoparticles, their complete life cycle should be scrutinized from their manufacturing to storage, and from distribution to intended industrial and commercial uses potential abuse and ultimate disposal. Furthermore, to find ways to manage and confine nanomaterials, we must continue to explore the causes and mechanisms of nano-toxicity to gain better and deeper understanding. Ultimately, a more cautious manipulation of engineered nanomaterials as well as the development of laws and policies for safely managing all aspects of nanomaterial manufacturing, use, and recycling portends the unforeseen opportunities in this blooming field of nanotechnology.
Keywords : Nanoparticle, Toxic effect, Risk assessment, Disposal pathway, Environment