Delhi’s air quality slips to very poor

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Delhi: Delhi’s air quality Wednesday dipped to ‘very poor’ barely two days after staying in the ‘poor’ category, even as firefighting operations continued at the Bhalswa landfill site.The Central Pollution Control Board (CPCB) recorded the overall Air Quality Index (AQI) of Delhi at 312 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 capital had shown 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 the blazing fire at Bhalaswa landfill site.A Delhi Fire Service official said firefighting was still on at the garbage dump site.”Due to continuous discharge of methane gas from the landfill, fire erupts randomly. Two fire tenders are currently working on containing the fire at the site,” he said.Fire has been raging at the massive dump site since October 20.