With security at stake, many within the nationwide capital defied the cracker-ban, turning the air high quality within the area to “extreme” with stubble burning accounting for 32 per cent of Delhi’s PM2.5 air pollution. At Air High quality Index (AQI) at 414, Delhi recorded the worst air high quality in 4 years. Final 12 months, the town recorded a 24-hour common AQI of 337 on Diwali final 12 months and 268 and 400 within the subsequent two days. In 2018, the 24-hour common AQI was 281 on Diwali, deteriorated to 390 the subsequent day and remained “extreme” on three consecutive days. Likewise in 2019, Delhi’s 24-hour common AQI on Diwali was 319. Earlier, the Ministry of Earth Sciences’ air high quality monitor, SAFAR, had mentioned that the PM2.5 focus in Delhi on Diwali was “more likely to be the bottom” of the final 4 years if no firecrackers had been burnt.
In response to the Graded Response Motion Plan (GRAP), the air high quality is taken into account within the “extreme plus” or “emergency” class if PM2.5 and PM10 ranges persist above 300 µg/m3 and 500 µg/m3 respectively for greater than 48 hours.
A LOOK AT AQI IN DELHI
ASHOK VIHAR: 492
North Campus, DU
ANAND VIHAR: 476