High volume of airborne particulates continues to keep Delhi’s air quality ‘very poor’, a shade better than ‘severe’, continuing the trend observed since December 6.
The National Air Quality Index (NAQI) of Central Pollution Control Board (CPCB) puts the 24-hour-average AQI at 340 anything beyond 400 is considered severe as per the categorisation.
Experts say although little differentiates the two categories, the general intensity of pollution in Delhi during winters is such that anything less than ‘severe’ is considered a relief.
All but one monitoring station of Central agency SAFAR (System of Air Quality and Weather Forecasting and Research) recorded very poor air. Only the Lodhi Road Centre had PM 10 as ‘moderate’ and PM 2.5 as ‘poor’.
Jagmohan garg delhi news source here; http://www.business-standard.com/article/current-affairs/delhi-air-quality-improves-a-shade-still-very-poor-116121301019_1.html