A review on nanoparticle dispersion from vehicular exhaust: Assessment of Indian urban environment

Banerjee, Tandra; Christian, R.A.

A review on nanoparticle dispersion from vehicular exhaust: Assessment of Indian urban environment

2017

Banerjee, Tandra | Christian, R.A.

A comprehensive review is reported on the extent of release of ultrafine and nanoparticles from vehicular exhaust on Indian roads, the mechanism of evolution of these particles and the influence of key fuel and meteorological parameters on their evolution and dispersion. Consolidated understanding developed based on the available literature on nanoparticle formation and transformation processes is presented pictorially in the form of a schematic diagram. Influence of various parameters on the evolution of nanoparticles is elaborated using the present scientific understanding of dispersion mechanisms in the near and far field of vehicular exhausts. Inferences are drawn for the influence of Indian road conditions and atmospheric conditions on the dispersion of these evolved nanoparticles. Broad based suggestions are outlined for the Indian regulatory authorities so as to minimize the hazardous influence of such particulate emissions to urban population.

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