IMPACTS OF NANO TECHNOLOGY ON ENVIRONMENT- A REVIEW

ABSTRACT Nano scaled particles have relatively larger surface area per unit mass which is the critical factor to increase mechanical modulus and other physical and chemical properties. Nanotechnology increases the strengths of many materials and devices, as well as enhances efficiencies of monitoring devices, remediation of environmental pollution, and renewable energy production. In general, nano technology devices consume less energy, reduce material wastes, and helps in monitoring devices. Nanotechnology can also be used to reduce and prevent the toxicity of nanoparticles in environment more efficiently. Nanoparticles have higher surface areas than the bulk materials which can cause more damage to the human body and environment compared to the bulk particles. Therefore, concern for the potential risk to the society due to nanoparticles has attracted national and international attentions. The present paper discusses about the positive and negative impacts on nano – technology on man and environment. Key Words: Nano Particles, Toxicity, Environment