Rapid urbanization, increase in population growth rate, economic growth and development of industries has caused more pollutants and contaminants to enter in air and thus results in pollution. The occurrence of air pollution is because of hazardous or excessive amounts of substances that are introduced from either man-made or natural sources into earth's atmosphere. Polluted air is a mixture of oxides of nitrogen, sulfur, carbon, particulate matter, ozone, volatile organic compounds, solid particles and gases. Furthermore, polluted air is severely affecting the wellbeing of inhabitants as these pollutants can be directly inhaled resulting in respiratory ailments, cardiovascular disorders and damage to other organs and also climatic changes such as acid rain, smog, global warming. Scientists and researchers have invented various methods to remove contaminants from air like small air filters, diesel particulate filters, photo catalysis and activated carbon filtering as adsorbent for xylene and NO2, microbial degradation of contaminant through in-situ and ex-situ bioremediation and bio transformation. Various strategies have been imposed by the government to control air pollution but air still remains polluted. In order to find a large scale purifier, definitely mitigation of air pollutants by biological means like bioremediation that involves the use of microbes to breakdown the hazardous substances into non-toxic or less toxic substances. The pollutants deposited on exposed plant leaves and micro biome inhabiting on the aerial surface of leaves degrade the toxicant and utilize it for its own growth such as toluene reduction by yellow lupine plants along with Burkholderia cepacia, leaves associated with Methylobacterium and phenantherene degradation by Ixora plant species
