Air quality within the nationwide capital noticed a marginal enchancment on Wednesday following beneficial meteorological circumstances. The air quality, nonetheless, remained within the ‘poor’ class. The central authorities’s Air Quality Early Warning System for Delhi stated “fire counts” decreased in Punjab (round 2,400) on Tuesday, however have been “still significantly high and are likely to impact the air quality in Delhi-NCR and northwest India”.
The share of stubble burning in Delhi’s pollution had dropped to 10 per cent on Tuesday as a consequence of a change within the wind route. The metropolis recorded an air quality index (AQI) of 279 at 10 am as wind pace picked up.
The 24-hour common AQI was 302 on Tuesday. It was 293 on Monday and 364 on Sunday.
An AQI between zero and 50 is taken into account “good”, 51 and 100 “satisfactory”, 101 and 200 “moderate”,201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “severe”.
According to the Ministry of Earth Sciences’ air quality monitor, SAFAR, stated the share of stubble burning accounted for 16 per cent of Delhi’s pollution on Monday and 40 per cent on Sunday, the utmost thus far this season.
It was 32 per cent on Saturday, 19 per cent on Friday and 36 per cent on Thursday.
Last yr, the farm hearth contribution to Delhi’s pollution had peaked to 44 per cent on November 1, in line with SAFAR data.
According to the India Meteorological Department, the utmost wind pace was 15 kilometers per hour on Wednesday.
The metropolis recorded a minimal temperature of 10.6 levels Celsius. Calm winds and low temperatures lure pollution near the bottom, whereas beneficial wind pace helps of their dispersion.
According to the Air Quality Early Warning System for Delhi, town’s air flow index – a product of blending depth and common wind pace – was anticipated to be round 9,5000 metre sq. per second on Wednesday – beneficial for dispersion of pollution.
Mixing depth is the vertical peak during which pollution are suspended within the air. It reduces on chilly days with calm wind pace.
A air flow index decrease than 6,000 sqm/second, with the typical wind pace lower than 10 kmph, is unfavourable for dispersal of pollution.
(With inputs from PTI)