India, Nov. 15 -- Emergency persists despite drop in stubble burning

Air quality in Delhi was at 'emergency' levels again on November 15, 2019 - also the last day of the odd-even scheme.

The overall air quality index (AQI) crossed the 500 mark and was at 528 in the 'severe plus' or 'emergency' category at 10 AM on Friday, according to SAFAR (System of Air Quality and Weather Forecasting and Research).

An AQI of 0-50 is considered 'good', 51-100 'satisfactory', 101-200 'moderate', 201-300 'poor', 301-400 'very poor', and 401-500 'severe'. Above 500 is 'severe-plus', or 'emergency' category.

This even when the share of fresh stubble burning count in particulate matter (PM) 2.5 concentration in Delhi's air was forecast to fall to five pe...