Nanotechnology can play important role in the field of environmental restoration and science. Environmental pollution has become one of the major problems of developing as well as developed countries at present time. Unchecked exploitation of resources, rapid industrialization, urbanization as well as excessive agricultural activities to meet the demands of the ever increasing population are the major cause for contamination of the land, water and atmosphere at all levels. Increasing pollution is not only resulting in the destruction of biodiversity, but it also causes degradation of human health. Recently, nanotechnology has emerged as an answer to these problems having significant role in environmental monitoring, pollution prevention and remediation methods. Nanotechnology has many advantages to improve present environmental technologies and help to create new technologies in comparison to the conventional one. Present article explores the role of different nanoparticles available for environmental remediation purposes and pollution monitoring.