According to the study, the real-time share of vehicular emissions had increased to more than 00 per cent during the early phase of winter This is followed by household pollution (00.0-00.0 per cent), industry (0.0-00.0 per cent), construction (0.0-0.0 per cent), waste burning and road dustSimilarly, the contribution of biomass burning from other states remained low in the initial pre-Diwali phase but peaked post-Diwali. 