Delhi's air quality index stays in 'poor' category

Delhi's air quality continued to be in the "poor " category on Tuesday ,a day after it had improved from "very poor" Air Quality Index(AQI) zone. The Central Pollution Control Board (CPCB) recorded the city's overall AQI at 252 at 11 am.

An AQI between 0 and 50 is considered 'good',51 and 100 'satisfactory',101 and 200 'Moderate',201 and 300 'Poor',301 AND 400 'Very poor', and 401 and 500 'Severe'.

The air quality in the national capital had shows signs of improvement Monday as it moved from 'very poor' to 'poor' category, but experts said it could deteriorate in the coming days due to toxic air coming out of a fire at Bhalswa landfill site.

If the wind spread is lower and the temperature dips, the polluted air coming out of landfill fires will get trapped ,which would severely affect the air quality.

                                                                                       (TOI - 24/10/2018)