India, Oct. 19 -- Stubble fires that continued to burn in northern India, aided by north-westerly winds that blew the fumes in Delhi's direction, worsened air pollution in the capital at the weekend. Over 1,000 fires, the highest for the season, had been recorded on Saturday by the air quality early warning system of the ministry of earth sciences (MoES).

But an estimate of the contribution of stubble fires to Delhi's particulate matter (PM )2.5 level wasn't updated on Sunday by the MoES. The System of Air Quality and Weather Forecasting Research (SAFAR) model under the Indian Institute of Tropical Meteorology (used by the Central Pollution Control Board for pollution analysis) showed 17% contribution to Delhi's PM 2.5 load on Sunday. It...